RFC6779: Definition of Managed Objects for the Neighborhood Discovery Protocol
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Obsoleted By:
RFC7939
Related keywords:
(management information base)
(MANET)
(MIB)
(neighbor discovery)
(network management)
(Routing)
(SMIv2)
Internet Engineering Task Force (IETF) U. Herberg
Request for Comments: 6779 LIX, Ecole Polytechnique
Category: Standards Track R. Cole
ISSN: 2070-1721 US Army CERDEC
I. Chakeres
DRS CenGen
October 2012
Definition of Managed Objects for the Neighborhood Discovery Protocol
Abstract
This document defines a portion of the Management Information Base
(MIB) for use with network management protocols in the Internet
community. In particular, it describes objects for configuring
parameters of the Neighborhood Discovery Protocol (NHDP) process on a
router. The MIB module defined in this document, denoted NHDP-MIB,
also reports state, performance information, and notifications about
NHDP. This additional state and performance information is useful to
troubleshoot problems and performance issues during neighbor
discovery.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6779.
Herberg, et al. Standards Track [Page 1]
RFC 6779 The NHDP-MIB October 2012
Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. The Internet-Standard Management Framework . . . . . . . . . . 3
3. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.1. Terms . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.2. Notation . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Structure of the MIB Module . . . . . . . . . . . . . . . . . 4
5.1. Notifications . . . . . . . . . . . . . . . . . . . . . . 5
5.1.1. Introduction . . . . . . . . . . . . . . . . . . . . . 5
5.1.2. Notification Generation . . . . . . . . . . . . . . . 5
5.1.3. Limiting Frequency of Notifications . . . . . . . . . 5
5.2. The Configuration Group . . . . . . . . . . . . . . . . . 6
5.3. The State Group . . . . . . . . . . . . . . . . . . . . . 7
5.4. The Performance Group . . . . . . . . . . . . . . . . . . 7
5.5. Tables and Indexing . . . . . . . . . . . . . . . . . . . 7
6. Relationship to Other MIB Modules . . . . . . . . . . . . . . 9
6.1. Relationship to the SNMPv2-MIB . . . . . . . . . . . . . . 9
6.2. Relationship to Routing Protocol MIB Modules Relying
on the NHDP-MIB Module . . . . . . . . . . . . . . . . . . 10
6.3. MIB Modules Required for IMPORTS . . . . . . . . . . . . . 10
7. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 10
8. Security Considerations . . . . . . . . . . . . . . . . . . . 62
9. Applicability Statement . . . . . . . . . . . . . . . . . . . 64
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 65
11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 65
12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 65
12.1. Normative References . . . . . . . . . . . . . . . . . . . 65
12.2. Informative References . . . . . . . . . . . . . . . . . . 66
Herberg, et al. Standards Track [Page 2]
RFC 6779 The NHDP-MIB October 2012
1. Introduction
This document defines a portion of the Management Information Base
(MIB) for use with network management protocols in the Internet
community. In particular, it describes objects for configuring
parameters of the Neighborhood Discovery Protocol (NHDP) [RFC6130]
process on a router. The MIB module defined in this document,
denoted NHDP-MIB, also reports state, performance information, and
notifications about NHDP. This additional state and performance
information is useful to troubleshoot problems and performance issues
during neighbor discovery.
2. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
3. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
OPTIONAL" in this document are to be interpreted as described in
[RFC2119].
4. Overview
[RFC6130] allows a router to discover and track topological
information of routers up to two hops away by virtue of exchanging
HELLO messages. This information is useful for routers running
various routing and multicast flooding protocols developed within the
IETF MANET Working Group.
Herberg, et al. Standards Track [Page 3]
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4.1. Terms
The following definitions apply throughout this document:
o Notification Objects - triggers and associated notification
messages allowing for asynchronous tracking of pre-defined events
on the managed router.
o Configuration Objects - switches, tables, and objects that are
initialized to default settings or set through the management
interface defined by this MIB module.
o State Objects - automatically generated values that define the
current operating state of the NHDP instance in the router.
o Performance Objects - automatically generated values that help an
administrator or automated tool to assess the performance of the
NHDP instance on the router and the overall discovery performance
within the Mobile Ad Hoc Network (MANET).
4.2. Notation
The same notations as defined in [RFC6130] are used throughout this
document.
5. Structure of the MIB Module
This section presents the structure of the NHDP-MIB module. The MIB
module is arranged into the following structure:
o nhdpNotifications - objects defining NHDP-MIB notifications.
o nhdpObjects - defining objects within this MIB module. The
objects are arranged into the following groups:
* Configuration Group - defining objects related to the
configuration of the NHDP instance on the router.
* State Group - defining objects that reflect the current state
of the NHDP instance running on the router.
* Performance Group - defining objects that are useful to a
management station when characterizing the performance of NHDP
on the router and in the MANET.
o nhdpConformance - defining the minimal and maximal conformance
requirements for implementations of this MIB module.
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5.1. Notifications
This section describes the use of notifications and mechanisms to
enhance the ability to manage NHDP routing domains.
5.1.1. Introduction
Notifications can be emitted by a router running an instance of this
specification as a reaction to a specific event. This allows a
network manager to efficiently determine the source of problems or
significant changes of configuration or topology, instead of polling
a possibly large number of routers.
5.1.2. Notification Generation
When an exception event occurs, the application notifies the local
agent, which sends a notification to the appropriate SNMP management
stations. The message includes the notification type and may include
a list of notification-specific variables. Section 7 contains the
notification definitions, which includes the variable lists. At
least one IP address of the router that originates the notification
is included in the variable list so that the network manager may
determine the source of the notification.
5.1.3. Limiting Frequency of Notifications
To limit the frequency of notifications, the following additional
mechanisms are suggested, similar to those in [RFC4750].
5.1.3.1. Ignoring Initial Activity
The majority of critical events occur when NHDP is first enabled on a
router, at which time the symmetric neighbors and two-hop neighbors
of the router are discovered. During this initial period, a
potential flood of notifications is unnecessary since the events are
expected. To avoid unnecessary notifications, a router SHOULD NOT
originate expected notifications until a certain time interval has
elapsed, which is to be predefined by the network manager. It is
RECOMMENDED that this time interval is at least 3 x
nhdpHelloInterval, so that symmetric neighbors are discovered. The
suppression window for notifications is started when the nhdpIfStatus
transitions from its default value of 'false(2)' to 'true(1)'.
5.1.3.2. Throttling Notifications
The mechanism for throttling the notifications is the same as in
[RFC4750] (i.e., the number of transmitted notifications per time is
bounded).
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Appropriate values for the window time and upper bound are to be
selected by the network manager and depend on the deployment of the
MANET. If NHDP is deployed on a lossy, wireless medium, sending too
many notifications in a short time interval may lead to collisions
and dropped packets. In particular, in dense deployments of routers
running NHDP (i.e., where each router has many neighbors), a change
of the local topology may trigger many notifications at the same
time. [RFC4750] recommends "7 traps with a window time of 10
seconds" as the upper bound. As NHDP is expected to be deployed in
more lossy channels than OSPF, it is RECOMMENDED to choose a lower
threshold for the number of notifications per time than that.
Specifically, it is RECOMMENDED that the threshold value for the
objects reflecting the change be set to a value of '10' and the
DEFAULT values for these objects within the Notifications Group be
set to this value. Further, a time window for the change objects is
defined within this MIB module. It is RECOMMENDED that if the number
of occurrences exceeds the change threshold within the previous
change window, then the notification is to be sent. Furthermore, it
is RECOMMENDED that the value for this window be set to at least 5
times the nhdpHelloInterval.
The following objects are used to define the thresholds and time
windows for specific notifications defined in the NHDP-MIB module:
nhdpNbrStateChangeThreshold, nhdpNbrStateChangeWindow,
nhdp2HopNbrStateChangeThreshold, and nhdp2HopNbrStateChangeWindow.
5.1.3.3. One Notification per Event
Similar to the mechanism in [RFC4750], only one notification is sent
per event.
5.2. The Configuration Group
The router running NHDP is configured with a set of controls. The
authoritative list of configuration controls within the NHDP-MIB
module are found within the MIB module itself. Generally, an attempt
was made in developing the NHDP-MIB module to support all
configuration objects defined in [RFC6130]. For all of the
configuration parameters, the same constraints and default values of
these parameters as defined in [RFC6130] are followed. Refer to
[RFC5148] for guidance on setting jitter-related parameters, e.g.,
nhdpMaxJitter.
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5.3. The State Group
The State Group reports current state information of a router running
NHDP. The NHDP-MIB State Group tables were designed to contain the
complete set of state information defined within the information
bases specified in Sections 6, 7, and 8 of [RFC6130].
Two constructs, i.e., TEXTUAL-CONVENTIONs, are defined to support the
tables in the State Group. NHDP stores and indexes information
through sets of (dynamically defined) addresses, i.e., address sets.
Within SMIv2, it is not possible to index tables with variably
defined address sets. Hence, these TEXTUAL-CONVENTIONs are defined
to provide a local mapping between NHDP-managed address sets and
SMIv2 table indexing. These constructs are the NeighborIfIndex and
NeighborRouterIndex. These are locally (to the router) defined,
unique identifiers of virtual neighbors and neighbor interfaces. Due
to the nature of NHDP, the local router may have identified distinct
address sets but is not able to associate these as a single
interface. Hence, two or more NeighborIfIndexes pointing to multiple
distinct address sets may, in fact, be related to a common neighbor
interface. This ambiguity may also hold with respect to the
assignment of the NeighborRouterIndex. The local MIB agent is
responsible for managing, aggregating, and retiring the defined
indexes and for updating MIB tables using these indexes as the local
router learns more about its neighbors' topologies. These constructs
are used to define indexes to the appropriate State Group tables and
to correlate table entries to address sets, virtual neighbor
interfaces, and virtual neighbors within the MANET.
5.4. The Performance Group
The Performance Group reports values relevant to system performance.
Unstable neighbors or 2-hop neighbors and frequent changes of sets
can have a negative influence on the performance of NHDP. This MIB
module defines several objects that can be polled in order to, e.g.,
calculate histories or monitor frequencies of changes. This may help
the network administrator to determine unusual topology changes or
other changes that affect stability and reliability of the MANET.
One such framework is specified in [REPORT-MIB].
5.5. Tables and Indexing
The NHDP-MIB module contains a number of tables that record data
related to:
o the local router,
o a local MANET interface on the router,
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o other routers that are 1 hop removed from the local router,
o interfaces on other routers that are 1 hop removed from the local
router, and
o other routers that are 2 hops removed from the local router.
The NHDP-MIB module's tables are indexed via the following
constructs:
o nhdpIfIndex - the IfIndex of the local router on which NHDP is
configured.
o nhdpDiscIfIndex - a locally managed index representing a known
interface on a neighboring router.
o nhdpDiscRouterIndex - a locally managed index representing an ID
of a known neighboring router.
These tables and their indexing are:
o nhdpInterfaceTable - describes the configuration of the interfaces
of this router. This table has INDEX { nhdpIfIndex }.
o nhdpLibLocalIfSetTable - records all network addresses that are
defined as local interface network addresses on this router. This
table has INDEX { nhdpLibLocalIfSetIndex }.
o nhdpLibRemovedIfAddrSetTable - records network addresses that were
recently used as local interface network addresses on this router
but have been removed. This table has INDEX
{ nhdpLibRemovedIfAddrSetIndex }.
o nhdpInterfaceStateTable - records state information related to
specific interfaces of this router. This table has INDEX
{ nhdpIfIndex }.
o nhdpDiscIfSetTable - includes the nhdpDiscRouterIndex of the
discovered router, the nhdpDiscIfIndex of the discovered
interface, and the current set of addresses associated with this
neighbor interface. This table has INDEX { nhdpDiscIfSetIndex }.
o nhdpIibLinkSetTable - for each local interface, records all links
belonging to other routers that are, or recently were, 1-hop
neighbors to this router. This table has INDEX { nhdpIfIndex,
nhdpDiscIfIndex }.
Herberg, et al. Standards Track [Page 8]
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o nhdpIib2HopSetTable - for each local interface, records network
addresses (one at a time) of symmetric 2-hop neighbors and the
symmetric links to symmetric 1-hop neighbors of this router
through which these symmetric 2-hop neighbors can be reached.
This table has INDEX { nhdpIfIndex, nhdpDiscIfIndex,
nhdpIib2HopSetIpAddressType, nhdpIib2HopSetIpAddress }.
o nhdpNibNeighborSetTable - records all network addresses of each
1-hop neighbor to this router. This table has INDEX
{ nhdpDiscRouterIndex }.
o nhdpNibLostNeighborSetTable - records network addresses of other
routers that were recently symmetric 1-hop neighbors to this
router but are now advertised as lost. This table has INDEX
{ nhdpDiscRouterIndex }.
o nhdpInterfacePerfTable - records performance objects that are
measured for each local NHDP interface on this router. This table
has INDEX { nhdpIfIndex }.
o nhdpDiscIfSetPerfTable - records performance objects that are
measured for each discovered interface of a neighbor of this
router. This table has INDEX { nhdpDiscIfIndex }.
o nhdpDiscNeighborSetPerfTable - records performance objects that
are measured for discovered neighbors of this router. This table
has INDEX { nhdpDiscRouterIndex }.
o nhdpIib2HopSetPerfTable - records performance objects that are
measured for discovered 2-hop neighbors of this router. This
table has INDEX { nhdpDiscRouterIndex }.
6. Relationship to Other MIB Modules
This section specifies the relationship of the MIB module contained
in this document to other standards, particularly to standards
containing other MIB modules. MIB modules and specific definitions
imported from MIB modules that SHOULD be implemented in conjunction
with the MIB module contained within this document are identified in
this section.
6.1. Relationship to the SNMPv2-MIB
The System group in the SNMPv2-MIB module [RFC3418] is defined as
being mandatory for all systems, and the objects apply to the entity
as a whole. The System group provides identification of the
management entity and certain other system-wide data. The NHDP-MIB
module does not duplicate those objects.
Herberg, et al. Standards Track [Page 9]
RFC 6779 The NHDP-MIB October 2012
6.2. Relationship to Routing Protocol MIB Modules Relying on the
NHDP-MIB Module
[RFC6130] allows routing protocols to rely on the neighborhood
information that is discovered by means of HELLO message exchange.
In order to allow for troubleshooting, fault isolation, and
management of such routing protocols through a routing protocol MIB
module, it may be desired to align the State Group tables of the
NHDP-MIB module and the routing protocol MIB module. This is
accomplished through the definition of two TEXTUAL-CONVENTIONs in the
NHDP-MIB module: the NeighborIfIndex and the NeighborRouterIndex.
These object types are used to develop indexes into common NHDP-MIB
module and routing protocol State Group tables. These objects are
locally significant but should be locally common to the NHDP-MIB
module and the routing protocol MIB module implemented on a common
networked router. This will allow for improved cross-referencing of
information across the two MIB modules.
6.3. MIB Modules Required for IMPORTS
The following NHDP-MIB module IMPORTS objects from SNMPv2-SMI
[RFC2578], SNMPv2-TC [RFC2579], SNMPv2-CONF [RFC2580], IF-MIB
[RFC2863], INET-ADDRESS-MIB [RFC4001], and FLOAT-TC-MIB [RFC6340].
7. Definitions
This section contains the MIB module defined by the specification.
NHDP-MIB DEFINITIONS ::= BEGIN
-- This MIB module defines objects for the management of
-- NHDP (RFC 6130) - The Neighborhood Discovery Protocol,
-- Clausen, T., Dearlove, C., and J. Dean, January 2011.
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
Counter32, Counter64, Integer32, Unsigned32, mib-2,
TimeTicks
FROM SNMPv2-SMI -- RFC 2578
TEXTUAL-CONVENTION, TruthValue, TimeStamp,
RowStatus
FROM SNMPv2-TC -- RFC 2579
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF -- STD 58
Herberg, et al. Standards Track [Page 10]
RFC 6779 The NHDP-MIB October 2012
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- RFC 3411
InetAddressType, InetAddress,
InetAddressPrefixLength
FROM INET-ADDRESS-MIB -- RFC 4001
InterfaceIndex
FROM IF-MIB -- RFC 2863
Float32TC
FROM FLOAT-TC-MIB -- RFC 6340
;
nhdpMIB MODULE-IDENTITY
LAST-UPDATED "201210221000Z" -- 22 October 2012
ORGANIZATION "IETF MANET Working Group"
CONTACT-INFO
"WG E-Mail: manet@ietf.org
WG Chairs: sratliff@cisco.com
jmacker@nrl.navy.mil
Editors: Ulrich Herberg
LIX, Ecole Polytechnique
91128 Palaiseau Cedex
France
ulrich@herberg.name
http://www.herberg.name/
Robert G. Cole
US Army CERDEC
Space and Terrestrial Communications
6010 Frankford Street
Bldg 6010, Room 453H
Aberdeen Proving Ground, Maryland 21005
USA
+1 443 395-8744
robert.g.cole@us.army.mil
http://www.cs.jhu.edu/~rgcole/
Herberg, et al. Standards Track [Page 11]
RFC 6779 The NHDP-MIB October 2012
Ian D Chakeres
DRS CenGen
9250 Bendix Road North
Columbia, Maryland 21045
USA
ian.chakeres@gmail.com
http://www.ianchak.com/"
DESCRIPTION
"This NHDP-MIB module is applicable to routers
implementing the Neighborhood Discovery Protocol
defined in RFC 6130.
Copyright (c) 2012 IETF Trust and the persons
identified as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with
or without modification, is permitted pursuant to, and
subject to the license terms contained in, the Simplified
BSD License set forth in Section 4.c of the IETF Trust's
Legal Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info).
This version of this MIB module is part of RFC 6779; see
the RFC itself for full legal notices."
-- revision
REVISION "201210221000Z" -- 22 October 2012
DESCRIPTION
"Initial version of this MIB module,
published as RFC 6779."
::= { mib-2 213 }
--
-- Top-Level Components of this MIB Module
--
nhdpNotifications OBJECT IDENTIFIER ::= { nhdpMIB 0 }
nhdpObjects OBJECT IDENTIFIER ::= { nhdpMIB 1 }
nhdpConformance OBJECT IDENTIFIER ::= { nhdpMIB 2 }
--
-- TEXTUAL-CONVENTIONs
--
-- Two new TEXTUAL-CONVENTIONs have been defined in
-- this MIB module for indexing into the following
-- tables and indexing into other tables in other MIB modules.
-- This was necessary because NHDP manages and
Herberg, et al. Standards Track [Page 12]
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-- indexes based upon dynamic address tuples, i.e.,
-- address sets, while SMI requires statically
-- defined indexes for accessing its table rows.
-- The NeighborIfIndex defines a unique (to the local router)
-- index referencing a discovered virtual interface on another
-- neighbor within the MANET. The NeighborRouterIndex defines a
-- unique (to the local router) index referencing a discovered
-- virtual neighbor within the MANET.
--
-- Due to the nature of NHDP,
-- different indexes may be related to common neighbor
-- interfaces or common neighbor routers, but the information
-- obtained through NHDP has not allowed the local router
-- to relate these virtual objects (i.e., interfaces or routers)
-- at this point in time. As more topology information
-- is gathered by the local router, it may associate
-- virtual interfaces or routers and collapse these
-- indexes appropriately.
-- Multiple addresses can be associated with a
-- given NeighborIfIndex. Each NeighborIfIndex is
-- associated with a NeighborRouterIndex. Throughout
-- the nhdpStateObjGroup, the
-- NeighborIfIndex and the NeighborRouterIndex are used
-- to define the set of IpAddrs related to a virtual
-- neighbor interface or virtual neighbor under discussion.
NeighborIfIndex ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An arbitrary, locally unique identifier associated with a
virtual interface of a discovered NHDP neighbor.
Due to the nature of NHDP, the local router
may not know if two distinct addresses belong to the
same interface of a neighbor or to two different
interfaces. As the local router gains more
knowledge of its neighbors, its local view may change, and
this table will be updated to reflect the local router's
current understanding, associating address sets to neighbor
interfaces. The local router identifies a virtual neighbor
interface through the receipt of address lists advertised
through an NHDP HELLO message.
All objects of type NeighborIfIndex are assigned by the agent
out of a common number space.
Herberg, et al. Standards Track [Page 13]
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The value for each discovered virtual neighbor
interface may not remain constant from
one re-initialization of the entity's network management
agent to the next re-initialization. If the
local router gains information associating two virtual
interfaces on a neighbor as a common interface,
then the agent MUST aggregate the two address sets to
a single index chosen from the set of aggregated indexes,
and it MUST update all tables in this
MIB module that are indexed by indexes
of type NeighborIfIndex. It MAY then reuse freed
index values following the next agent restart.
The specific value is meaningful only within a given SNMP
entity."
SYNTAX Unsigned32 (1..2147483647)
NeighborRouterIndex ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An arbitrary, locally unique identifier associated with a
virtual discovered neighbor (one or two hop). Due to the
nature of NHDP, the local router may identify
multiple virtual neighbors that, in fact, are one and
the same. Neighbors that are two hops away with more than
one advertised address will exhibit this behavior. As the
local router's knowledge of its neighbors' topology
increases, the local router will be able to associate
multiple virtual neighbor indexes into a single virtual
neighbor index chosen from the set of aggregated indexes;
it MUST update all tables in this MIB module indexed by these
indexes, and it MAY reuse the freed indexes following the
next agent re-initialization.
All objects of type NeighborRouterIndex are assigned by
the agent out of a common number space.
The NeighborRouterIndex defines a discovered NHDP peer
virtual neighbor of the local router.
The value for each discovered virtual neighbor index MUST
remain constant at least from one re-initialization of
the entity's network management agent to the next
re-initialization, except if an application is deleted
and re-created.
The specific value is meaningful only within a given SNMP
entity. A NeighborRouterIndex value MUST not be reused
Herberg, et al. Standards Track [Page 14]
RFC 6779 The NHDP-MIB October 2012
until the next agent restart."
SYNTAX Unsigned32 (1..2147483647)
--
-- nhdpObjects
--
-- 1) Configuration Objects Group
-- 2) State Objects Group
-- 3) Performance Objects Group
--
-- nhdpConfigurationObjGrp
--
-- Contains the NHDP objects that configure specific options
-- that determine the overall performance and operation of
-- NHDP.
nhdpConfigurationObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 1 }
nhdpInterfaceTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The nhdpInterfaceTable describes the
configuration of the interfaces of this router
that are intended to use MANET control protocols.
As such, this table 'sparse augments' the ifTable
specifically when NHDP is to be configured to
operate over this interface. The interface is
identified by the ifIndex from the interfaces
group defined in the Interfaces Group MIB module.
A conceptual row in this table exists if and only
if either a manager has explicitly created the row
or there is an interface on the managed device
that supports and runs NHDP.
The manager can create a row by setting
rowStatus to 'createAndGo' or 'createAndWait'.
Row objects having associated DEFVAL clauses are
automatically defined by the agent with these
values during row creation, unless the manager
explicitly defines these object values during the
row creation.
Herberg, et al. Standards Track [Page 15]
RFC 6779 The NHDP-MIB October 2012
If the corresponding entry with ifIndex value
is deleted from the Interface Table, then the entry
in this table is automatically deleted,
NHDP is disabled on this interface,
and all configuration and state information
related to this interface is to be removed
from memory."
REFERENCE
"RFC 2863 - The Interfaces Group MIB, McCloghrie,
K., and F. Kastenholtz, June 2000"
::= { nhdpConfigurationObjGrp 1 }
nhdpInterfaceEntry OBJECT-TYPE
SYNTAX NhdpInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The nhdpInterfaceEntry describes one NHDP
local interface configuration as indexed by
its ifIndex as defined in the Standard MIB II
Interface Table (RFC 2863).
The objects in this table are persistent, and when
written, the device SHOULD save the change to
non-volatile storage. For further information
on the storage behavior for these objects, refer
to the description for the nhdpIfRowStatus
object."
INDEX { nhdpIfIndex }
::= { nhdpInterfaceTable 1 }
NhdpInterfaceEntry ::=
SEQUENCE {
nhdpIfIndex
InterfaceIndex,
nhdpIfName
SnmpAdminString,
nhdpIfStatus
TruthValue,
nhdpHelloInterval
Unsigned32,
nhdpHelloMinInterval
Unsigned32,
nhdpRefreshInterval
Unsigned32,
nhdpLHoldTime
Unsigned32,
nhdpHHoldTime
Herberg, et al. Standards Track [Page 16]
RFC 6779 The NHDP-MIB October 2012
Unsigned32,
nhdpHystAcceptQuality
Float32TC,
nhdpHystRejectQuality
Float32TC,
nhdpInitialQuality
Float32TC,
nhdpInitialPending
TruthValue,
nhdpHpMaxJitter
Unsigned32,
nhdpHtMaxJitter
Unsigned32,
nhdpIfRowStatus
RowStatus
}
nhdpIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This value MUST correspond to an ifIndex referring
to a valid entry in the Interfaces Table."
REFERENCE
"RFC 2863 - The Interfaces Group MIB, McCloghrie, K.,
and F. Kastenholtz, June 2000"
::= { nhdpInterfaceEntry 1 }
nhdpIfName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The textual name of the interface. The value of this
object SHOULD be the name of the interface as assigned by
the local device. This can be a text-name, such as 'le0'
or a simple port number, such as '1',
depending on the interface-naming syntax of the device.
If there is no local name or this object is otherwise not
applicable, then this object contains a zero-length string."
::= { nhdpInterfaceEntry 2 }
nhdpIfStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
Herberg, et al. Standards Track [Page 17]
RFC 6779 The NHDP-MIB October 2012
DESCRIPTION
"nhdpIfStatus indicates whether this interface is
currently running NHDP. A value of 'true(1)' indicates
that NHDP is running on this interface.
A value of 'false(2)' indicates that NHDP is not
currently running on this interface. This corresponds
to the I_manet parameter in the Local Interface Set
of NHDP."
DEFVAL { false }
::= { nhdpInterfaceEntry 3 }
--
-- Interface Parameters - Message Intervals
--
nhdpHelloInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpHelloInterval corresponds to
HELLO_INTERVAL of NHDP and represents the
maximum time between the transmission of two
successive HELLO messages on this MANET interface.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o nhdpHelloInterval > 0
o nhdpHelloInterval >= nhdpHelloMinInterval"
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc
Network (MANET) Neighborhood Discovery
Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
DEFVAL { 2000 }
::= { nhdpInterfaceEntry 4 }
nhdpHelloMinInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpHelloMinInterval corresponds to
HELLO_MIN_INTERVAL of NHDP and represents
Herberg, et al. Standards Track [Page 18]
RFC 6779 The NHDP-MIB October 2012
the minimum interval between transmission
of two successive HELLO messages on this
MANET interface.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o nhdpHelloMinInterval <= nhdpHelloInterval"
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { 500 }
::= { nhdpInterfaceEntry 5 }
nhdpRefreshInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpRefreshInterval corresponds to
REFRESH_INTERVAL of NHDP and represents the
maximum interval between advertisements of
each 1-hop neighbor network address and its
status. Each advertisement is in a HELLO
message on this MANET interface.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o nhdpRefreshInterval >= nhdpHelloInterval"
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { 2000 }
::= { nhdpInterfaceEntry 6 }
--
-- Interface Parameters - Information Validity times
--
nhdpLHoldTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
Herberg, et al. Standards Track [Page 19]
RFC 6779 The NHDP-MIB October 2012
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpLHoldTime corresponds to
L_HOLD_TIME of NHDP and represents the period
of advertisement, on this MANET interface, of
former 1-hop neighbor network addresses as lost
in HELLO messages, allowing recipients of these
HELLO messages to accelerate removal of this
information from their Link Sets.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that it should be assigned a
value significantly greater than the refresh
interval held by nhdpRefreshInterval."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { 6000 }
::= { nhdpInterfaceEntry 7 }
nhdpHHoldTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpHHoldTime corresponds to
H_HOLD_TIME of NHDP and is used as the value
in the VALIDITY_TIME Message TLV included in all
HELLO messages on this MANET interface. It is then
used by each router receiving such a HELLO message
to indicate the validity of the information taken
from that HELLO message and recorded in the receiving
router's Information Bases.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that it should be assigned a
value significantly greater than the refresh interval
held by nhdpRefreshInterval and must be representable
as described in RFC 5497."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
Herberg, et al. Standards Track [Page 20]
RFC 6779 The NHDP-MIB October 2012
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { 6000 }
::= { nhdpInterfaceEntry 8 }
--
-- Interface Parameters - Link Quality
--
nhdpHystAcceptQuality OBJECT-TYPE
SYNTAX Float32TC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpHystAcceptQuality corresponds to
HYST_ACCEPT of NHDP and represents the link
quality threshold at or above which a link becomes
usable, if it was not already so.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o 0 <= nhdpHystRejectQuality
<= nhdpHystAcceptQuality <= 1.0
The default value for this object is 1.0. According to
RFC 6340:
Since these textual conventions are defined in terms
of the OCTET STRING type, the SMI's mechanisms for
formally setting range constraints are not available.
MIB designers using these textual conventions will need
to use DESCRIPTION clauses to spell out any applicable
range constraints beyond those implied by the underlying
IEEE types.
Therefore, this object does not have a DEFVAL clause."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
-- DEFVAL { 1.0 } see DESCRIPTION
::= { nhdpInterfaceEntry 9 }
nhdpHystRejectQuality OBJECT-TYPE
SYNTAX Float32TC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
Herberg, et al. Standards Track [Page 21]
RFC 6779 The NHDP-MIB October 2012
"nhdpHystRejectQuality corresponds to
HYST_REJECT of NHDP and represents the
link quality threshold below which a
link becomes unusable, if it was not
already so.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o 0 <= nhdpHystRejectQuality
<= nhdpHystAcceptQuality <= 1.0
The default value for this object is 0.0. According to
RFC 6340:
Since these textual conventions are defined in terms
of the OCTET STRING type, the SMI's mechanisms for
formally setting range constraints are not available.
MIB designers using these textual conventions will need
to use DESCRIPTION clauses to spell out any applicable
range constraints beyond those implied by the underlying
IEEE types.
Therefore, this object does not have a DEFVAL clause."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
-- DEFVAL { 0.0 } see DESCRIPTION
::= { nhdpInterfaceEntry 10 }
nhdpInitialQuality OBJECT-TYPE
SYNTAX Float32TC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpInitialQuality corresponds to
INITIAL_QUALITY of NHDP and represents the
initial quality of a newly identified link.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o 0 <= nhdpInitialQuality <= 1.0
The default value for this object is 1.0. According to
RFC 6340:
Since these textual conventions are defined in terms
of the OCTET STRING type, the SMI's mechanisms for
Herberg, et al. Standards Track [Page 22]
RFC 6779 The NHDP-MIB October 2012
formally setting range constraints are not available.
MIB designers using these textual conventions will need
to use DESCRIPTION clauses to spell out any applicable
range constraints beyond those implied by the underlying
IEEE types.
Therefore, this object does not have a DEFVAL clause."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
-- DEFVAL { 1.0 } see DESCRIPTION
::= { nhdpInterfaceEntry 11 }
nhdpInitialPending OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpInitialPending corresponds to
INITIAL_PENDING of NHDP. If the value of this object
is 'true(1)', then a newly identified link is considered
pending and is not usable until the link quality
has reached or exceeded the nhdpHystAcceptQuality
threshold.
Guidance for setting this object may be found
in Section 5 of the NHDP specification (RFC 6130),
which indicates that:
o If nhdpInitialQuality >= nhdpHystAcceptQuality,
then nhdpInitialPending := false(2).
o If nhdpInitialQuality < nhdpHystRejectQuality,
then nhdpInitialPending := true(1)."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { false }
::= { nhdpInterfaceEntry 12 }
--
-- Interface Parameters - Jitter
--
nhdpHpMaxJitter OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
Herberg, et al. Standards Track [Page 23]
RFC 6779 The NHDP-MIB October 2012
STATUS current
DESCRIPTION
"nhdpHpMaxJitter corresponds to
HP_MAXJITTER of NHDP and represents the
value of MAXJITTER used in RFC 5148 for
periodically generated HELLO messages on
this MANET interface.
Guidance for setting this object may be found
in Section 5 of RFC 5148, which indicates that:
o nhdpHpMaxJitter <= nhdpHelloInterval / 2
o nhdpHpMaxJitter should not be greater
than nhdpHelloInterval / 4
o If nhdpMinHelloInterval > 0, then
nhdpHpMaxJitter <= nhdpHelloMinInterval; and
nhdpHpMaxJitter should not be greater than
nhdpHelloMinInterval / 2"
REFERENCE
"Section 5 of RFC 5148 - Jitter Considerations in
Mobile Ad Hoc Networks (MANETs),
Clausen, T., Dearlove, C., and B. Adamson, February 2008"
DEFVAL { 500 }
::= { nhdpInterfaceEntry 13 }
nhdpHtMaxJitter OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpHtMaxJitter corresponds to
HT_MAXJITTER of NHDP and represents the
value of MAXJITTER used in RFC 5148 for
externally triggered HELLO messages on this
MANET interface.
Guidance for setting this object may be found
in Section 5 of RFC 5148, which indicates that:
o nhdpHtMaxJitter <= nhdpHelloInterval / 2
o nhdpHtMaxJitter should not be greater
than nhdpHelloInterval / 4
o If nhdpMinHelloInterval > 0, then
nhdpHtMaxJitter <= nhdpHelloMinInterval; and
nhdpHtMaxJitter should not be greater than
nhdpHelloMinInterval / 2"
REFERENCE
"Section 5 of RFC 5148 - Jitter Considerations in
Mobile Ad Hoc Networks (MANETs),
Herberg, et al. Standards Track [Page 24]
RFC 6779 The NHDP-MIB October 2012
Clausen, T., Dearlove, C., and B. Adamson, February 2008"
DEFVAL { 500 }
::= { nhdpInterfaceEntry 14 }
nhdpIfRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of the table
by facilitating actions such as row creation,
construction, and destruction. The value of
this object has no effect on whether other
objects in this conceptual row can be
modified.
An entry may not exist in the 'active(1)' state unless all
objects in the entry have a defined appropriate value. For
objects with DEFVAL clauses, the management station
does not need to specify the value of this object in order
for the row to transit to the 'active(1)' state; the default
value for this object is used. For objects that do not
have DEFVAL clauses, then the network manager MUST
specify the value of this object prior to this row
transitioning to the 'active(1)' state.
When this object transitions to 'active(1)', all objects
in this row SHOULD be written to non-volatile (stable)
storage. Read-create objects in this row MAY be modified.
When an object in a row with nhdpIfRowStatus of 'active(1)'
is changed, then the updated value MUST be reflected in NHDP,
and this new object value MUST be written to non-volatile
storage.
If the value of this object is not equal to 'active(1)',
all associated entries in the nhdpLibLocalIfSetTable,
nhdpInterfaceStateTable, nhdpIibLinkSetTable, and
nhdpInterfacePerfTable MUST be deleted."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
DEFVAL { active }
::= { nhdpInterfaceEntry 15 }
--
-- Router Parameters - Information Validity Time
--
Herberg, et al. Standards Track [Page 25]
RFC 6779 The NHDP-MIB October 2012
nhdpNHoldTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"nhdpNHoldTime corresponds to
N_HOLD_TIME of NHDP and is used as the period
during which former 1-hop neighbor network
addresses are advertised as lost in HELLO
messages, allowing recipients of these HELLO
messages to accelerate removal of this information
from their 2-Hop Sets.
This object is persistent, and when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { 6000 }
::= { nhdpConfigurationObjGrp 2 }
nhdpIHoldTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"nhdpIHoldTime corresponds to
I_HOLD_TIME of NHDP and represents the period
for which a recently used local interface network
address is recorded.
This object is persistent, and when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"Section 5 on Protocol Parameters and
Constraints of RFC 6130 - Mobile Ad Hoc Network
(MANET) Neighborhood Discovery Protocol (NHDP),
Clausen, T., Dearlove, C., and J. Dean, April 2011"
DEFVAL { 6000 }
::= { nhdpConfigurationObjGrp 3 }
Herberg, et al. Standards Track [Page 26]
RFC 6779 The NHDP-MIB October 2012
-- A router's Local Information Base (LIB)
--
-- Local Interface Set Table
--
nhdpLibLocalIfSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpLibLocalIfSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Local Interface Set records all
network addresses that are defined as local
MANET interface network addresses.
As such, this table 'sparse augments' the
nhdpInterfaceTable when network addresses are
being defined for the interfaces existing within
the nhdpInterfaceTable. The local interface
is defined by the nhdpIfIndex.
The Local Interface Set consists of Local Interface
Address Tuples per MANET interface and their prefix
lengths (in order to determine the network addresses
related to the interface).
A conceptual row in this table exists if and only
if a manager has explicitly created the row. The
manager can create a row by setting rowStatus
to 'createAndGo' or 'createAndWait'.
Further guidance on the addition or removal of
local addresses and network addresses is found
in Section 9 of RFC 6130."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpConfigurationObjGrp 4 }
nhdpLibLocalIfSetEntry OBJECT-TYPE
SYNTAX NhdpLibLocalIfSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Local Interface Set consists
of Configured Interface Address Tuples for each network
interface.
Herberg, et al. Standards Track [Page 27]
RFC 6779 The NHDP-MIB October 2012
The objects in this table are persistent, and when
written, the device SHOULD save the change to
non-volatile storage. For further information
on the storage behavior for these objects, refer
to the description for the nhdpLibLocalIfSetRowStatus
object."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpLibLocalIfSetIndex }
::= { nhdpLibLocalIfSetTable 1 }
NhdpLibLocalIfSetEntry ::=
SEQUENCE {
nhdpLibLocalIfSetIndex
Integer32,
nhdpLibLocalIfSetIfIndex
InterfaceIndex,
nhdpLibLocalIfSetIpAddrType
InetAddressType,
nhdpLibLocalIfSetIpAddr
InetAddress,
nhdpLibLocalIfSetIpAddrPrefixLen
InetAddressPrefixLength,
nhdpLibLocalIfSetRowStatus
RowStatus
}
nhdpLibLocalIfSetIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index for this table. Necessary
because multiple addresses may be associated
with a given nhdpIfIndex."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibLocalIfSetEntry 1 }
nhdpLibLocalIfSetIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Herberg, et al. Standards Track [Page 28]
RFC 6779 The NHDP-MIB October 2012
"Specifies the local nhdpIfIndex for which this
IP address was added."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibLocalIfSetEntry 2 }
nhdpLibLocalIfSetIpAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The type of the nhdpLibLocalIfSetIpAddr
in the InetAddress MIB (RFC 4001).
Only the values 'ipv4(1)' and
'ipv6(2)' are supported."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibLocalIfSetEntry 3 }
nhdpLibLocalIfSetIpAddr OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"nhdpLibLocalIfSetIpAddr is an
address of an interface of
this router.
This object is interpreted according to
the setting of nhdpLibLocalIfSetIpAddrType."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibLocalIfSetEntry 4 }
nhdpLibLocalIfSetIpAddrPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the number of leading one bits that
form the mask. The mask is logically ANDed
Herberg, et al. Standards Track [Page 29]
RFC 6779 The NHDP-MIB October 2012
to the nhdpLibLocalIfSetIpAddr to determine
the address prefix. A row match is true
if the address used as an index falls within
the network address range defined by the
address prefix."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibLocalIfSetEntry 5 }
nhdpLibLocalIfSetRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of the table
by facilitating actions such as row creation,
construction, and destruction. The value of
this object has no effect on whether other
objects in this conceptual row can be
modified.
An entry may not exist in the 'active(1)' state unless all
read-create objects in the entry have a defined
appropriate value. As no objects in this table have
DEFVAL clauses, the management station MUST specify
the values of all read-create objects prior to this row
transitioning to the 'active(1)' state.
When this object transitions to 'active(1)', all objects
in this row SHOULD be written to non-volatile (stable)
storage. Read-create objects in this row MAY be modified.
When an object in a row with nhdpIfRowStatus of 'active(1)'
is changed, then the updated value MUST be reflected in NHDP,
and this new object value MUST be written to non-volatile
storage."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
DEFVAL { notReady }
::= { nhdpLibLocalIfSetEntry 6 }
--
-- Removed Interface Addr Set Table
--
Herberg, et al. Standards Track [Page 30]
RFC 6779 The NHDP-MIB October 2012
nhdpLibRemovedIfAddrSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpLibRemovedIfAddrSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Removed Interface Address Set records
network addresses that were recently used as local
interface network addresses. If a router's interface
network addresses are immutable, then the Removed
Interface Address Set is always empty and may be omitted.
It consists of Removed Interface Address Tuples, one
per network address."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpConfigurationObjGrp 5 }
nhdpLibRemovedIfAddrSetEntry OBJECT-TYPE
SYNTAX NhdpLibRemovedIfAddrSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Removed Interface Address Set consists
of Removed Interface Address Tuples, one per network
address:
(IR_local_iface_addr, IR_time)
The association between these addresses and the
router's Interface is found in the Standard MIB II's
IP address table (RFC 1213)."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpLibRemovedIfAddrSetIndex }
::= { nhdpLibRemovedIfAddrSetTable 1 }
NhdpLibRemovedIfAddrSetEntry ::=
SEQUENCE {
nhdpLibRemovedIfAddrSetIndex
Integer32,
nhdpLibRemovedIfAddrSetIpAddrType
InetAddressType,
nhdpLibRemovedIfAddrSetIpAddr
InetAddress,
nhdpLibRemovedIfAddrSetIpAddrPrefixLen
Herberg, et al. Standards Track [Page 31]
RFC 6779 The NHDP-MIB October 2012
InetAddressPrefixLength,
nhdpLibRemovedIfAddrSetIfIndex
InterfaceIndex,
nhdpLibRemovedIfAddrSetIRTime
TimeStamp
}
nhdpLibRemovedIfAddrSetIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index for this table. Necessary
because multiple addresses may be associated
with a given nhdpIfIndex."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibRemovedIfAddrSetEntry 1 }
nhdpLibRemovedIfAddrSetIpAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of the nhdpLibRemovedIfAddrSetIpAddr
in the InetAddress MIB (RFC 4001).
Only the values 'ipv4(1)' and
'ipv6(2)' are supported."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibRemovedIfAddrSetEntry 2 }
nhdpLibRemovedIfAddrSetIpAddr OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpLibRemovedIfAddrSetIpAddr is a
recently used address of an interface of
this router."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
Herberg, et al. Standards Track [Page 32]
RFC 6779 The NHDP-MIB October 2012
C., and J. Dean, April 2011"
::= { nhdpLibRemovedIfAddrSetEntry 3 }
nhdpLibRemovedIfAddrSetIpAddrPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of leading one bits that
form the mask. The mask is logically ANDed
to the nhdpLibRemovedIfAddrSetIpAddr to determine
the address prefix. A row match is true
if the address used as an index falls within
the network address range defined by the
address prefix."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibRemovedIfAddrSetEntry 4 }
nhdpLibRemovedIfAddrSetIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the local IfIndex from which this
IP address was recently removed."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibRemovedIfAddrSetEntry 5 }
nhdpLibRemovedIfAddrSetIRTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpLibRemovedIfAddrSetIRTime specifies the value
of sysUptime when this entry should expire and be
removed from the nhdpLibRemovedIfAddrSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpLibRemovedIfAddrSetEntry 6 }
Herberg, et al. Standards Track [Page 33]
RFC 6779 The NHDP-MIB October 2012
--
-- nhdpStateObjGrp
--
-- Contains information describing the current state of the NHDP
-- process on this router.
nhdpStateObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 2 }
nhdpUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time the current NHDP
process was initialized."
::= { nhdpStateObjGrp 1 }
nhdpInterfaceStateTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpInterfaceStateEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"nhdpInterfaceStateTable lists state information
related to specific interfaces of this router.
The value of nhdpIfIndex is an ifIndex from the
interfaces group defined in the Interfaces Group
MIB.
The objects in this table are persistent, and when
written, the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"RFC 2863 - The Interfaces Group MIB, McCloghrie,
K., and F. Kastenholtz, June 2000."
::= { nhdpStateObjGrp 2 }
nhdpInterfaceStateEntry OBJECT-TYPE
SYNTAX NhdpInterfaceStateEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"nhdpInterfaceStateEntry describes one NHDP
local interface state as indexed by
its nhdpIfIndex."
INDEX { nhdpIfIndex }
::= { nhdpInterfaceStateTable 1 }
Herberg, et al. Standards Track [Page 34]
RFC 6779 The NHDP-MIB October 2012
NhdpInterfaceStateEntry ::=
SEQUENCE {
nhdpIfStateUpTime
TimeStamp
}
nhdpIfStateUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the sysUpTime when
NHDP was last initialized on this
MANET interface."
::= { nhdpInterfaceStateEntry 1 }
--
-- This table allows for the mapping between discovered
-- remote interfaces and routers and their addresses.
--
nhdpDiscIfSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpDiscIfSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's set of discovered interfaces on
neighboring routers."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpStateObjGrp 3 }
nhdpDiscIfSetEntry OBJECT-TYPE
SYNTAX NhdpDiscIfSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The entries include the nhdpDiscRouterIndex of
the discovered router, the nhdpDiscIfIndex
of the discovered interface, and the
current set of addresses associated
with this neighbor interface. The
nhdpDiscIfIndex uniquely identifies
the remote interface address sets
through this table. It does not need
to be unique across the MANET but MUST
Herberg, et al. Standards Track [Page 35]
RFC 6779 The NHDP-MIB October 2012
be locally unique within this router."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscIfSetIndex }
::= { nhdpDiscIfSetTable 1 }
NhdpDiscIfSetEntry ::=
SEQUENCE {
nhdpDiscIfSetIndex
Integer32,
nhdpDiscIfIndex
NeighborIfIndex,
nhdpDiscRouterIndex
NeighborRouterIndex,
nhdpDiscIfSetIpAddrType
InetAddressType,
nhdpDiscIfSetIpAddr
InetAddress,
nhdpDiscIfSetIpAddrPrefixLen
InetAddressPrefixLength
}
nhdpDiscIfSetIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index for this table. Necessary
because multiple addresses may be associated
with a given nhdpDiscIfIndex."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetEntry 1 }
nhdpDiscIfIndex OBJECT-TYPE
SYNTAX NeighborIfIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The NHDP interface index (locally created)
of a neighbor's interface. Used for cross-
indexing into other NHDP tables and other
MIB modules."
REFERENCE
Herberg, et al. Standards Track [Page 36]
RFC 6779 The NHDP-MIB October 2012
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetEntry 2 }
nhdpDiscRouterIndex OBJECT-TYPE
SYNTAX NeighborRouterIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The NHDP neighbor index (locally created)
of a neighboring router. Used for cross-
indexing into other NHDP tables and other
MIB modules."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetEntry 3 }
nhdpDiscIfSetIpAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of the nhdpDiscIfSetIpAddr
in the InetAddress MIB (RFC 4001).
Only the values 'ipv4(1)' and
'ipv6(2)' are supported."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetEntry 4 }
nhdpDiscIfSetIpAddr OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The nhdpDiscIfSetIpAddr is a
recently used address of a neighbor
of this router."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
Herberg, et al. Standards Track [Page 37]
RFC 6779 The NHDP-MIB October 2012
::= { nhdpDiscIfSetEntry 5 }
nhdpDiscIfSetIpAddrPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of leading one bits that
form the mask. The mask is logically ANDed
to the nhdpDiscIfSetIpAddr to determine
the address prefix. A row match is true
if the address used as an index falls within
the network address range defined by the
address prefix."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetEntry 6 }
-- Interface Information Base (IIB)
--
-- Link Set
--
nhdpIibLinkSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpIibLinkSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A Link Set of an interface records all links
from other routers that are, or recently
were, 1-hop neighbors."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpStateObjGrp 4 }
nhdpIibLinkSetEntry OBJECT-TYPE
SYNTAX NhdpIibLinkSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A Link Set consists of Link Tuples, each
representing a single link indexed by the
local and remote interface pair:
Herberg, et al. Standards Track [Page 38]
RFC 6779 The NHDP-MIB October 2012
(L_neighbor_iface_addr_list, L_HEARD_time,
L_SYM_time, L_quality, L_pending,
L_lost, L_time).
The local interface is indexed via the
nhdpIfIndex. The 1-hop interface is
indexed via the nhdpDiscIfIndex. There
SHOULD be an entry in this table for each
local interface and associated 1-hop
neighbor reachable on this local interface.
Note that L_quality is not included in the
entries below, because updates may be
required too frequently."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpIfIndex,
nhdpDiscIfIndex }
::= { nhdpIibLinkSetTable 1 }
NhdpIibLinkSetEntry ::=
SEQUENCE {
nhdpIibLinkSetLHeardTime
TimeStamp,
nhdpIibLinkSetLSymTime
TimeStamp,
nhdpIibLinkSetLPending
TruthValue,
nhdpIibLinkSetLLost
TruthValue,
nhdpIibLinkSetLTime
TimeStamp
}
nhdpIibLinkSetLHeardTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIibLinkSetLHeardTime corresponds
to L_HEARD_time of NHDP and represents the
time up to which the MANET interface of the
1-hop neighbor would be considered heard if
not considering link quality."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Herberg, et al. Standards Track [Page 39]
RFC 6779 The NHDP-MIB October 2012
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIibLinkSetEntry 1 }
nhdpIibLinkSetLSymTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIibLinkSetLSymTime corresponds
to L_SYM_time of NHDP and represents the time
up to which the link to the 1-hop neighbor
would be considered symmetric if not considering
link quality."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIibLinkSetEntry 2 }
nhdpIibLinkSetLPending OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIibLinkSetLPending corresponds
to L_pending of NHDP and is a boolean flag,
describing if a link is considered pending
(i.e., a candidate, but not yet established,
link)."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIibLinkSetEntry 3 }
nhdpIibLinkSetLLost OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIibLinkSetLLost corresponds
to L_lost of NHDP and is a boolean flag,
describing if a link is considered lost due
to low link quality."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
Herberg, et al. Standards Track [Page 40]
RFC 6779 The NHDP-MIB October 2012
C., and J. Dean, April 2011"
::= { nhdpIibLinkSetEntry 4 }
nhdpIibLinkSetLTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIibLinkSetLTime specifies the value
of sysUptime when this entry should expire and be
removed from the nhdpIibLinkSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIibLinkSetEntry 5 }
--
-- 2-Hop Set
--
nhdpIib2HopSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpIib2HopSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A 2-Hop Set of an interface records network
addresses of symmetric 2-hop neighbors and
the symmetric links to symmetric 1-hop neighbors
through which these symmetric 2-hop neighbors
can be reached. It consists of 2-Hop Tuples."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpStateObjGrp 5 }
nhdpIib2HopSetEntry OBJECT-TYPE
SYNTAX NhdpIib2HopSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"nhdpIib2HopSetTable consists of 2-Hop Tuples,
each representing a single network address of
a symmetric 2-hop neighbor and a single MANET
interface of a symmetric 1-hop neighbor.
(N2_neighbor_iface_addr_list,
N2_2hop_addr, N2_time).
Herberg, et al. Standards Track [Page 41]
RFC 6779 The NHDP-MIB October 2012
The entries include the 2-hop neighbor addresses,
which act as the table index, and associated
1-hop symmetric link address set, designated
through nhdpDiscIfIndex, and an expiration time.
The nhdpIfIndex in the INDEX is the
interface index of the local interface
through which these 2-hop addresses are
accessible. The nhdpDiscIfIndex in the
INDEX represents the 1-hop neighbor interface
through which these 2-hop addresses are
reachable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpIfIndex,
nhdpDiscIfIndex,
nhdpIib2HopSetIpAddressType,
nhdpIib2HopSetIpAddress
}
::= { nhdpIib2HopSetTable 1 }
NhdpIib2HopSetEntry ::=
SEQUENCE {
nhdpIib2HopSetIpAddressType
InetAddressType,
nhdpIib2HopSetIpAddress
InetAddress,
nhdpIib2HopSetIpAddrPrefixLen
InetAddressPrefixLength,
nhdpIib2HopSet1HopIfIndex
NeighborIfIndex,
nhdpIib2HopSetN2Time
TimeStamp
}
nhdpIib2HopSetIpAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the nhdpIib2HopSetIpAddress
in the InetAddress MIB module (RFC 4001).
Only the values 'ipv4(1)' and
'ipv6(2)' are supported."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Herberg, et al. Standards Track [Page 42]
RFC 6779 The NHDP-MIB October 2012
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetEntry 1 }
nhdpIib2HopSetIpAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"nhdpIib2HopSetIpAddr corresponds
to N2_2hop_addr of NHDP and is a network
address of a symmetric 2-hop neighbor that
has a symmetric link (using any MANET
interface) to the indicated symmetric
1-hop neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetEntry 2 }
nhdpIib2HopSetIpAddrPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the number of leading one bits that
form the mask. The mask is logically ANDed
to the nhdpIib2HopSetIpAddress to determine
the address prefix. A row match is true
if the address used as an index falls within
the network address range defined by the
address prefix."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetEntry 3 }
nhdpIib2HopSet1HopIfIndex OBJECT-TYPE
SYNTAX NeighborIfIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIib2HopSet1HopIfIndex is
nhdpDiscIfIndex of the 1-hop
neighbor that communicated the ipAddress
of the 2-hop neighbor in this row entry."
Herberg, et al. Standards Track [Page 43]
RFC 6779 The NHDP-MIB October 2012
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetEntry 4 }
nhdpIib2HopSetN2Time OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpIib2HopSetN2Time specifies the value
of sysUptime when this entry should expire and be
removed from the nhdpIib2HopSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetEntry 5 }
--
-- Neighbor Information Base (NIB)
--
-- Each router maintains a Neighbor Information Base
-- that records information about addresses of
-- current and recently symmetric 1-hop neighbors.
--
-- Neighbor Set
--
-- The Neighbor Set Table is small because
-- most of the corresponding information is found
-- in the nhdpDiscoveredIfTable above.
--
nhdpNibNeighborSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpNibNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Neighbor Set records all
network addresses of each 1-hop
neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpStateObjGrp 6 }
Herberg, et al. Standards Track [Page 44]
RFC 6779 The NHDP-MIB October 2012
nhdpNibNeighborSetEntry OBJECT-TYPE
SYNTAX NhdpNibNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Neighbor Set consists
of Neighbor Tuples, each representing
a single 1-hop neighbor:
(N_neighbor_addr_list, N_symmetric)"
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpNibNeighborSetTable 1 }
NhdpNibNeighborSetEntry ::=
SEQUENCE {
nhdpNibNeighborSetNSymmetric
TruthValue
}
nhdpNibNeighborSetNSymmetric OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpNibNeighborNSymmetric corresponds
to N_symmetric of NHDP and is a boolean flag,
describing if this is a symmetric 1-hop neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpNibNeighborSetEntry 1 }
--
-- Lost Neighbor Set
--
nhdpNibLostNeighborSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpNibLostNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Lost Neighbor Set records network
addresses of routers that were recently
symmetric 1-hop neighbors but are now
Herberg, et al. Standards Track [Page 45]
RFC 6779 The NHDP-MIB October 2012
advertised as lost."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpStateObjGrp 7 }
nhdpNibLostNeighborSetEntry OBJECT-TYPE
SYNTAX NhdpNibLostNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Lost Neighbor Set consists of
Lost Neighbor Tuples, each representing a
single such network address:
(NL_neighbor_addr, NL_time)"
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpNibLostNeighborSetTable 1 }
NhdpNibLostNeighborSetEntry ::=
SEQUENCE {
nhdpNibLostNeighborSetNLTime
TimeStamp
}
nhdpNibLostNeighborSetNLTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpNibLostNeighborSetNLTime
specifies the value of sysUptime when this entry
should expire and be removed from the
nhdpNibLostNeighborSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpNibLostNeighborSetEntry 1 }
--
-- nhdpPerformanceObjGrp
--
Herberg, et al. Standards Track [Page 46]
RFC 6779 The NHDP-MIB October 2012
-- Contains objects that help to characterize the performance of
-- the NHDP process, typically counters.
--
nhdpPerformanceObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 3 }
--
-- Objects per local interface
--
nhdpInterfacePerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpInterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table summarizes performance objects that are
measured per local NHDP interface."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 1 }
nhdpInterfacePerfEntry OBJECT-TYPE
SYNTAX NhdpInterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A single entry contains performance counters for
a local NHDP interface."
INDEX { nhdpIfIndex }
::= { nhdpInterfacePerfTable 1 }
NhdpInterfacePerfEntry ::=
SEQUENCE {
nhdpIfHelloMessageXmits
Counter32,
nhdpIfHelloMessageRecvd
Counter32,
nhdpIfHelloMessageXmitAccumulatedSize
Counter64,
nhdpIfHelloMessageRecvdAccumulatedSize
Counter64,
nhdpIfHelloMessageTriggeredXmits
Counter32,
nhdpIfHelloMessagePeriodicXmits
Counter32,
nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount
Herberg, et al. Standards Track [Page 47]
RFC 6779 The NHDP-MIB October 2012
Counter32,
nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount
Counter32,
nhdpIfHelloMessageXmitAccumulatedLostNeighborCount
Counter32
}
nhdpIfHelloMessageXmits OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a HELLO
message has been transmitted on that interface."
::= { nhdpInterfacePerfEntry 1 }
nhdpIfHelloMessageRecvd OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a
HELLO message has been received on that interface."
::= { nhdpInterfacePerfEntry 2 }
nhdpIfHelloMessageXmitAccumulatedSize OBJECT-TYPE
SYNTAX Counter64
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of octets in
a HELLO message each time a
HELLO message has been sent."
::= { nhdpInterfacePerfEntry 3 }
nhdpIfHelloMessageRecvdAccumulatedSize OBJECT-TYPE
SYNTAX Counter64
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of octets in
a HELLO message each time a
HELLO message has been received."
::= { nhdpInterfacePerfEntry 4 }
Herberg, et al. Standards Track [Page 48]
RFC 6779 The NHDP-MIB October 2012
nhdpIfHelloMessageTriggeredXmits OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a triggered
HELLO message has been sent."
::= { nhdpInterfacePerfEntry 5 }
nhdpIfHelloMessagePeriodicXmits OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a periodic
HELLO message has been sent."
::= { nhdpInterfacePerfEntry 6 }
nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount OBJECT-TYPE
SYNTAX Counter32
UNITS "neighbors"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of advertised
symmetric neighbors in a HELLO each time a HELLO
message has been sent."
::= { nhdpInterfacePerfEntry 7 }
nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount OBJECT-TYPE
SYNTAX Counter32
UNITS "neighbors"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of advertised
heard neighbors in a HELLO each time a HELLO
message has been sent."
::= { nhdpInterfacePerfEntry 8 }
nhdpIfHelloMessageXmitAccumulatedLostNeighborCount OBJECT-TYPE
SYNTAX Counter32
UNITS "neighbors"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Herberg, et al. Standards Track [Page 49]
RFC 6779 The NHDP-MIB October 2012
"A counter is incremented by the number of advertised
lost neighbors in a HELLO each time a HELLO
message has been sent."
::= { nhdpInterfacePerfEntry 9 }
--
-- Objects per discovered neighbor interface
--
nhdpDiscIfSetPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpDiscIfSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's set of performance properties for
each discovered interface of a neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 2 }
nhdpDiscIfSetPerfEntry OBJECT-TYPE
SYNTAX NhdpDiscIfSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"There is an entry for each discovered
interface of a neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscIfIndex }
::= { nhdpDiscIfSetPerfTable 1 }
NhdpDiscIfSetPerfEntry ::=
SEQUENCE {
nhdpDiscIfRecvdPackets
Counter32,
nhdpDiscIfExpectedPackets
Counter32
}
nhdpDiscIfRecvdPackets OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
Herberg, et al. Standards Track [Page 50]
RFC 6779 The NHDP-MIB October 2012
DESCRIPTION
"This counter increments each
time this router receives a packet from that interface
of the neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetPerfEntry 1 }
nhdpDiscIfExpectedPackets OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This counter increments by the number
of missed packets from this neighbor based
on the packet sequence number each time this
router receives a packet from that interface
of the neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetPerfEntry 2 }
--
-- Objects concerning the Neighbor Set
--
nhdpNibNeighborSetChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This counter increments each time the Neighbor Set changes.
A change occurs whenever a new Neighbor Tuple has been
added, a Neighbor Tuple has been removed, or any entry of
a Neighbor Tuple has been modified."
::= { nhdpPerformanceObjGrp 3 }
--
-- Objects per discovered neighbor
--
nhdpDiscNeighborSetPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpDiscNeighborSetPerfEntry
Herberg, et al. Standards Track [Page 51]
RFC 6779 The NHDP-MIB October 2012
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's set of discovered neighbors and
their properties."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 4 }
nhdpDiscNeighborSetPerfEntry OBJECT-TYPE
SYNTAX NhdpDiscNeighborSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The entries include the nhdpDiscRouterIndex of
the discovered router as well as performance
objects related to changes of the Neighbor
Set."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpDiscNeighborSetPerfTable 1 }
NhdpDiscNeighborSetPerfEntry ::=
SEQUENCE {
nhdpDiscNeighborNibNeighborSetChanges
Counter32,
nhdpDiscNeighborNibNeighborSetUpTime
TimeStamp,
nhdpDiscNeighborNibNeighborSetReachableLinkChanges
Counter32
}
nhdpDiscNeighborNibNeighborSetChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object returns the number of changes
to the given Neighbor Tuple."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
Herberg, et al. Standards Track [Page 52]
RFC 6779 The NHDP-MIB October 2012
C., and J. Dean, April 2011"
::= { nhdpDiscNeighborSetPerfEntry 1 }
nhdpDiscNeighborNibNeighborSetUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object returns the sysUpTime when
the neighbor becomes 'nbrup'. A neighbor is
said to become 'nbrup' if a new nhdpNibNeighborSetEntry
is created for a particular nhdpNibNeighborSetRouterIndex.
It becomes 'nbrdown' if the entry for that neighbor
has been deleted."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscNeighborSetPerfEntry 2 }
nhdpDiscNeighborNibNeighborSetReachableLinkChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts each time the neighbor changes
the interface(s) over which it is reachable.
A change in the set of Link Tuples corresponding
to the appropriate Neighbor Tuple is registered,
i.e., a corresponding Link Tuple is added or removed
from the set of all corresponding Link Tuples."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscNeighborSetPerfEntry 3 }
--
-- Objects per discovered 2-hop neighbor
--
nhdpIib2HopSetPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpIib2HopSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains performance objects per
discovered 2-hop neighbor."
Herberg, et al. Standards Track [Page 53]
RFC 6779 The NHDP-MIB October 2012
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 5 }
nhdpIib2HopSetPerfEntry OBJECT-TYPE
SYNTAX NhdpIib2HopSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The entries contain performance objects per
discovered 2-hop neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpIib2HopSetPerfTable 1 }
NhdpIib2HopSetPerfEntry ::=
SEQUENCE {
nhdpIib2HopSetPerfChanges
Counter32,
nhdpIib2HopSetPerfUpTime
TimeStamp
}
nhdpIib2HopSetPerfChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the changes of the union of all
N2_neighbor_iface_addr_list of 2-Hop Tuples with an
N2_2hop_addr equal to one of the given 2-hop
neighbor's addresses."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetPerfEntry 1 }
nhdpIib2HopSetPerfUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
Herberg, et al. Standards Track [Page 54]
RFC 6779 The NHDP-MIB October 2012
DESCRIPTION
"This object returns the sysUpTime
when the 2-Hop Tuple
corresponding to the given 2-hop neighbor IP address
was registered in the nhdpIib2HopSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetPerfEntry 2 }
--
-- nhdpNotifications
--
nhdpNotificationsObjects OBJECT IDENTIFIER ::= { nhdpNotifications 0 }
nhdpNotificationsControl OBJECT IDENTIFIER ::= { nhdpNotifications 1 }
nhdpNotificationsStates OBJECT IDENTIFIER ::= { nhdpNotifications 2 }
-- nhdpNotificationsObjects
nhdpNbrStateChange NOTIFICATION-TYPE
OBJECTS { nhdpIfName, -- The originator of
-- the notification.
nhdpNbrState -- The new state
}
STATUS current
DESCRIPTION
"nhdpNbrStateChange is a notification sent when
more than nhdpNbrStateChangeThreshold neighbors change
their status (i.e., 'down(0)', 'asymmetric(1)', or
'symmetric(2)') within a time window of
nhdpNbrStateChangeWindow."
::= { nhdpNotificationsObjects 1 }
nhdp2HopNbrStateChange NOTIFICATION-TYPE
OBJECTS { nhdpIfName, -- The originator
-- of the notification
nhdp2HopNbrState -- The new state
}
STATUS current
DESCRIPTION
"nhdp2HopNbrStateChange is a notification sent
when more than nhdp2HopNbrStateChangeThreshold 2-hop
neighbors change their status (i.e., 'down(0)' or
'up(1)') within a time window of
nhdp2HopNbrStateChangeWindow."
::= { nhdpNotificationsObjects 2 }
Herberg, et al. Standards Track [Page 55]
RFC 6779 The NHDP-MIB October 2012
nhdpIfStateChange NOTIFICATION-TYPE
OBJECTS { nhdpIfName, -- The local interface
nhdpIfStatus -- The new status
}
STATUS current
DESCRIPTION
"nhdpIfStateChange is a notification sent when
nhdpIfStatus has changed on this interface."
::= { nhdpNotificationsObjects 3 }
-- nhdpNotificationsControl
nhdpNbrStateChangeThreshold OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "changes"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A threshold value for the
nhdpNbrStateChange object. If the
number of occurrences exceeds this threshold
within the previous nhdpNbrStateChangeWindow,
then the nhdpNbrStateChange notification
is to be sent.
It is recommended that the value of this
threshold be set to at least 10 and higher
in dense topologies with frequent expected
topology changes."
DEFVAL { 10 }
::= { nhdpNotificationsControl 1 }
nhdpNbrStateChangeWindow OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A time window for the
nhdpNbrStateChange object. If the
number of occurrences exceeds the
nhdpNbrStateChangeThreshold
within the previous nhdpNbrStateChangeWindow,
then the nhdpNbrStateChange notification
is to be sent.
It is recommended that the value for this
window be set to at least 5 times the
nhdpHelloInterval.
Herberg, et al. Standards Track [Page 56]
RFC 6779 The NHDP-MIB October 2012
This object represents the time in hundredths
of a second."
DEFVAL { 1000 }
::= { nhdpNotificationsControl 2 }
nhdp2HopNbrStateChangeThreshold OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "changes"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A threshold value for the
nhdp2HopNbrStateChange object. If the
number of occurrences exceeds this threshold
within the previous nhdp2HopNbrStateChangeWindow,
then the nhdp2HopNbrStateChange notification
is to be sent.
It is recommended that the value of this
threshold be set to at least 10 and higher
when topologies are expected to be highly dynamic."
DEFVAL { 10 }
::= { nhdpNotificationsControl 3 }
nhdp2HopNbrStateChangeWindow OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A time window for the
nhdp2HopNbrStateChange object. If the
number of occurrences exceeds the
nhdp2HopNbrStateChangeThreshold
within the previous nhdp2HopNbrStateChangeWindow,
then the nhdp2HopNbrStateChange notification
is to be sent.
It is recommended that the value for this
window be set to at least 5 times
nhdpHelloInterval.
This object represents the time in hundredths
of a second."
DEFVAL { 1000 }
::= { nhdpNotificationsControl 4 }
-- nhdpNotificationStates
Herberg, et al. Standards Track [Page 57]
RFC 6779 The NHDP-MIB October 2012
nhdpNbrState OBJECT-TYPE
SYNTAX INTEGER {
down(0),
asymmetric(1),
symmetric(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"NHDP neighbor states. In NHDP, it is not
necessary to remove Protocol Tuples from Protocol Sets
at the exact time indicated, only to behave as if the
Protocol Tuples were removed at that time. This case is
indicated here as 'down(0)', all other cases being
indicated as 'asymmetric(1)' or 'symmetric(2)'. If 'down(0)',
the direct neighbor is also added to the
nhdpNibLostNeighborSetTable."
::= { nhdpNotificationsStates 1 }
nhdp2HopNbrState OBJECT-TYPE
SYNTAX INTEGER {
down(0),
up(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"NHDP 2-hop neighbor states. In NHDP, it is not
necessary to remove Protocol Tuples from Protocol Sets
at the exact time indicated, only to behave as if the
Protocol Tuples were removed at that time. This case is
indicated here as 'down(0)'; otherwise, it is 'up(1)'."
::= { nhdpNotificationsStates 2 }
--
-- nhdpConformance information
--
nhdpCompliances OBJECT IDENTIFIER ::= { nhdpConformance 1 }
nhdpMIBGroups OBJECT IDENTIFIER ::= { nhdpConformance 2 }
-- Compliance Statements
nhdpBasicCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The basic implementation requirements for
managed network entities that implement
NHDP."
Herberg, et al. Standards Track [Page 58]
RFC 6779 The NHDP-MIB October 2012
MODULE -- this module
MANDATORY-GROUPS { nhdpConfigurationGroup }
::= { nhdpCompliances 1 }
nhdpFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The full implementation requirements for
managed network entities that implement
NHDP."
MODULE -- this module
MANDATORY-GROUPS { nhdpConfigurationGroup,
nhdpStateGroup,
nhdpNotificationObjectGroup,
nhdpNotificationGroup,
nhdpPerformanceGroup
}
::= { nhdpCompliances 2 }
--
-- Units of Conformance
--
nhdpConfigurationGroup OBJECT-GROUP
OBJECTS {
nhdpIfName,
nhdpIfStatus,
nhdpHelloInterval,
nhdpHelloMinInterval,
nhdpRefreshInterval,
nhdpLHoldTime,
nhdpHHoldTime,
nhdpHystAcceptQuality,
nhdpHystRejectQuality,
nhdpInitialQuality,
nhdpInitialPending,
nhdpHpMaxJitter,
nhdpHtMaxJitter,
nhdpNHoldTime,
nhdpIHoldTime,
nhdpIfRowStatus,
nhdpLibLocalIfSetIfIndex,
nhdpLibLocalIfSetIpAddrType,
nhdpLibLocalIfSetIpAddr,
nhdpLibLocalIfSetIpAddrPrefixLen,
nhdpLibLocalIfSetRowStatus,
nhdpLibRemovedIfAddrSetIpAddrType,
nhdpLibRemovedIfAddrSetIpAddr,
Herberg, et al. Standards Track [Page 59]
RFC 6779 The NHDP-MIB October 2012
nhdpLibRemovedIfAddrSetIpAddrPrefixLen,
nhdpLibRemovedIfAddrSetIfIndex,
nhdpLibRemovedIfAddrSetIRTime
}
STATUS current
DESCRIPTION
"Set of NHDP configuration objects implemented
in this module."
::= { nhdpMIBGroups 2 }
nhdpStateGroup OBJECT-GROUP
OBJECTS {
nhdpUpTime,
nhdpIfStateUpTime,
nhdpDiscRouterIndex,
nhdpDiscIfIndex,
nhdpDiscIfSetIpAddrType,
nhdpDiscIfSetIpAddr,
nhdpDiscIfSetIpAddrPrefixLen,
nhdpIibLinkSetLHeardTime,
nhdpIibLinkSetLSymTime,
nhdpIibLinkSetLPending,
nhdpIibLinkSetLLost,
nhdpIibLinkSetLTime,
nhdpIib2HopSetIpAddrPrefixLen,
nhdpIib2HopSet1HopIfIndex,
nhdpIib2HopSetN2Time,
nhdpNibNeighborSetNSymmetric,
nhdpNibLostNeighborSetNLTime
}
STATUS current
DESCRIPTION
"Set of NHDP state objects implemented
in this module."
::= { nhdpMIBGroups 3 }
nhdpPerformanceGroup OBJECT-GROUP
OBJECTS {
nhdpIfHelloMessageXmits,
nhdpIfHelloMessageRecvd,
nhdpIfHelloMessageXmitAccumulatedSize,
nhdpIfHelloMessageRecvdAccumulatedSize,
nhdpIfHelloMessageTriggeredXmits,
nhdpIfHelloMessagePeriodicXmits,
nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount,
nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount,
nhdpIfHelloMessageXmitAccumulatedLostNeighborCount,
nhdpDiscIfRecvdPackets,
Herberg, et al. Standards Track [Page 60]
RFC 6779 The NHDP-MIB October 2012
nhdpDiscIfExpectedPackets,
nhdpNibNeighborSetChanges,
nhdpDiscNeighborNibNeighborSetChanges,
nhdpDiscNeighborNibNeighborSetUpTime,
nhdpDiscNeighborNibNeighborSetReachableLinkChanges,
nhdpIib2HopSetPerfChanges,
nhdpIib2HopSetPerfUpTime
}
STATUS current
DESCRIPTION
"Set of NHDP performance objects implemented
in this module."
::= { nhdpMIBGroups 4 }
nhdpNotificationObjectGroup OBJECT-GROUP
OBJECTS {
nhdpNbrStateChangeThreshold,
nhdpNbrStateChangeWindow,
nhdp2HopNbrStateChangeThreshold,
nhdp2HopNbrStateChangeWindow,
nhdpNbrState,
nhdp2HopNbrState
}
STATUS current
DESCRIPTION
"Set of NHDP notification objects implemented
in this module."
::= { nhdpMIBGroups 5 }
nhdpNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS {
nhdpNbrStateChange,
nhdp2HopNbrStateChange,
nhdpIfStateChange
}
STATUS current
DESCRIPTION
"Set of NHDP notifications implemented
in this module."
::= { nhdpMIBGroups 6 }
END
Herberg, et al. Standards Track [Page 61]
RFC 6779 The NHDP-MIB October 2012
8. Security Considerations
This MIB module defines objects for the configuration, monitoring,
and notification of the Neighborhood Discovery Protocol [RFC6130].
NHDP allows routers to acquire topological information up to two hops
away by virtue of exchanging HELLO messages. The information
acquired by NHDP may be used by routing protocols. The neighborhood
information, exchanged between routers using NHDP, serves these
routing protocols as a baseline for calculating paths to all
destinations in the MANET, relay set selection for network-wide
transmissions, etc.
There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-write and/or read-create. Such
objects may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations. These are the tables and objects and their
sensitivity/vulnerability:
o nhdpIfStatus - This writable object turns on or off the NHDP
process for the specified interface. If disabled, higher-level
protocol functions, e.g., routing, would fail, causing network-
wide disruptions.
o nhdpHelloInterval, nhdpHelloMinInterval, and nhdpRefreshInterval -
These writable objects control the rate at which HELLO messages
are sent on an interface. If set at too high a rate, this could
represent a form of denial-of-service (DoS) attack by overloading
interface resources.
o nhdpHystAcceptQuality, nhdpHystRejectQuality, nhdpInitialQuality,
and nhdpInitialPending - These writable objects affect the
perceived quality of the NHDP links and hence the overall
stability of the network. If improperly set, these settings could
result in network-wide disruptions.
o nhdpInterfaceTable - This table contains writable objects that
affect the overall performance and stability of the NHDP process.
Failure of the NHDP process would result in network-wide failure.
Particularly sensitive objects from this table are discussed in
the previous list items. This is the only table in the NHDP-MIB
module with writable objects.
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
Herberg, et al. Standards Track [Page 62]
RFC 6779 The NHDP-MIB October 2012
to even encrypt the values of these objects when sending them over
the network via SNMP. These are the tables and objects and their
sensitivity/vulnerability:
o nhdpDiscIfSetTable - The object contains information on discovered
neighbors, specifically their IP address in the
nhdpDiscIfSetIpAddr object. This information provides an
adversary broad information on the members of the MANET, located
within this single table. This information can be used to
expedite attacks on the other members of the MANET without having
to go through a laborious discovery process on their own. This
object is the index into the table and has a MAX-ACCESS of 'not-
accessible'. However, this information can be exposed using SNMP
operations.
MANET technology is often deployed to support communications of
emergency services or military tactical applications. In these
applications, it is imperative to maintain the proper operation of
the communications network and to protect sensitive information
related to its operation. Therefore, it is RECOMMENDED to provide
support for the Transport Security Model (TSM) [RFC5591] in
combination with TLS/DTLS [RFC6353].
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPsec),
there is no control as to who on the secure network is allowed to
access and GET/SET (read/change/create/delete) the objects in this
MIB module.
Implementations MUST provide the security features described by the
SNMPv3 framework (see [RFC3410]), including full support for
authentication and privacy via the User-based Security Model (USM)
[RFC3414] with the AES cipher algorithm [RFC3826]. Implementations
MAY also provide support for the Transport Security Model (TSM)
[RFC5591] in combination with a secure transport such as SSH
[RFC5592] or TLS/DTLS [RFC6353].
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
the objects only to those principals (users) that have legitimate
rights to indeed GET or SET (change/create/delete) them.
Herberg, et al. Standards Track [Page 63]
RFC 6779 The NHDP-MIB October 2012
9. Applicability Statement
This document describes objects for configuring parameters of the
Neighborhood Discovery Protocol [RFC6130] process on a router. This
MIB module, denoted NHDP-MIB, also reports state, performance
information, and notifications. This section provides some examples
of how this MIB module can be used in MANET network deployments. A
fuller discussion of MANET network management use cases and
challenges will be provided elsewhere.
NHDP is designed to allow routers to automatically discover and track
routers one hop remote (denoted "neighbors") and routers two hops
remote (denoted "two-hop neighbors"). This information is used by
other MANET protocols in operation on the router to perform routing,
multicast forwarding, and other functions with ad hoc and mobile
networks. In the following, three example scenarios are listed where
this MIB module is useful:
o For a Parking Lot Initial Configuration Situation - It is common
for the vehicles comprising the MANET being forward deployed at a
remote location, e.g., the site of a natural disaster, to be off-
loaded in a parking lot where an initial configuration of the
networking devices is performed. The configuration is loaded into
the devices from a fixed location Network Operation Center (NOC)
at the parking lot, and the vehicles are stationary at the parking
lot while the configuration changes are made. Standards-based
methods for configuration management from the co-located NOC are
necessary for this deployment option.
o For Mobile Vehicles with Low-Bandwidth Satellite Link to a Fixed
NOC - Here, the vehicles carrying the MANET routers carry multiple
wireless interfaces, one of which is a relatively low-bandwidth,
on-the-move satellite connection that interconnects a fix NOC to
the nodes of the MANET. Standards-based methods for monitoring
and fault management from the fixed NOC are necessary for this
deployment option.
o For Fixed NOC and Mobile Local Manager in Larger Vehicles - for
larger vehicles, a hierarchical network management arrangement is
useful. Centralized network management is performed from a fixed
NOC while local management is performed locally from within the
vehicles. Standards-based methods for configuration, monitoring,
and fault management are necessary for this deployment option.
Herberg, et al. Standards Track [Page 64]
RFC 6779 The NHDP-MIB October 2012
10. IANA Considerations
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER value recorded in the SMI Numbers registry:
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
NHDP-MIB { mib-2 213 }
11. Acknowledgements
The authors wish to thank Benoit Claise, Thomas Clausen, Justin Dean,
Adrian Farrel, Joel Halpern, Al Morton, and Thomas Nadeau for their
detailed reviews and insightful comments regarding this document.
This MIB document uses the template authored by D. Harrington, which
is based on contributions from the MIB Doctors, especially Juergen
Schoenwaelder, Dave Perkins, C.M. Heard, and Randy Presuhn.
12. References
12.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578,
April 1999.
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2",
STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000.
[RFC3418] Presuhn, R., "Management Information Base (MIB) for the
Simple Network Management Protocol (SNMP)", STD 62,
RFC 3418, December 2002.
Herberg, et al. Standards Track [Page 65]
RFC 6779 The NHDP-MIB October 2012
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet
Network Addresses", RFC 4001, February 2005.
[RFC6130] Clausen, T., Dearlove, C., and J. Dean, "Mobile Ad Hoc
Network (MANET) Neighborhood Discovery Protocol
(NHDP)", RFC 6130, April 2011.
[RFC6340] Presuhn, R., "Textual Conventions for the
Representation of Floating-Point Numbers", RFC 6340,
August 2011.
12.2. Informative References
[REPORT-MIB] Cole, R., Macker, J., and A. Bierman, "Definition of
Managed Objects for Performance Reporting", Work
in Progress, January 2012.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for
Internet-Standard Management Framework", RFC 3410,
December 2002.
[RFC3414] Blumenthal, U. and B. Wijnen, "User-based Security
Model (USM) for version 3 of the Simple Network
Management Protocol (SNMPv3)", STD 62, RFC 3414,
December 2002.
[RFC3826] Blumenthal, U., Maino, F., and K. McCloghrie, "The
Advanced Encryption Standard (AES) Cipher Algorithm in
the SNMP User-based Security Model", RFC 3826,
June 2004.
[RFC4750] Joyal, D., Galecki, P., Giacalone, S., Coltun, R., and
F. Baker, "OSPF Version 2 Management Information Base",
RFC 4750, December 2006.
[RFC5148] Clausen, T., Dearlove, C., and B. Adamson, "Jitter
Considerations in Mobile Ad Hoc Networks (MANETs)",
RFC 5148, February 2008.
[RFC5591] Harrington, D. and W. Hardaker, "Transport Security
Model for the Simple Network Management Protocol
(SNMP)", RFC 5591, June 2009.
[RFC5592] Harrington, D., Salowey, J., and W. Hardaker, "Secure
Shell Transport Model for the Simple Network Management
Protocol (SNMP)", RFC 5592, June 2009.
Herberg, et al. Standards Track [Page 66]
RFC 6779 The NHDP-MIB October 2012
[RFC6353] Hardaker, W., "Transport Layer Security (TLS) Transport
Model for the Simple Network Management Protocol
(SNMP)", RFC 6353, July 2011.
Authors' Addresses
Ulrich Herberg
LIX, Ecole Polytechnique
91128 Palaiseau Cedex
France
EMail: ulrich@herberg.name
URI: http://www.herberg.name/
Robert G. Cole
US Army CERDEC
Space and Terrestrial Communications
6010 Frankford Road, Bldg 6010, Room 453H
Aberdeen Proving Ground, Maryland 21005
United States
Phone: +1 443 395-8744
EMail: robert.g.cole@us.army.mil
URI: http://www.cs.jhu.edu/~rgcole/
Ian D Chakeres
DRS CenGen
9250 Bendix Road North
Columbia, Maryland 21045
United States
EMail: ian.chakeres@gmail.com
URI: http://www.ianchak.com/
Herberg, et al. Standards Track [Page 67]