RFC Abstracts

RFC6836 - Locator/ID Separation Protocol Alternative Logical Topology (LISP+ALT)
This document describes a simple distributed index system to be used by a Locator/ID Separation Protocol (LISP) Ingress Tunnel Router (ITR) or Map-Resolver (MR) to find the Egress Tunnel Router (ETR) that holds the mapping information for a particular Endpoint Identifier (EID). The MR can then query that ETR to obtain the actual mapping information, which consists of a list of Routing Locators (RLOCs) for the EID. Termed the Alternative Logical Topology (ALT), the index is built as an overlay network on the public Internet using the Border Gateway Protocol (BGP) and Generic Routing Encapsulation (GRE). This document defines an Experimental Protocol for the Internet community.
RFC6835 - The Locator/ID Separation Protocol Internet Groper (LIG)
A simple tool called the Locator/ID Separation Protocol (LISP) Internet Groper or 'lig' can be used to query the LISP mapping database. This document describes how it works. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6834 - Locator/ID Separation Protocol (LISP) Map-Versioning
This document describes the LISP (Locator/ID Separation Protocol) Map-Versioning mechanism, which provides in-packet information about Endpoint ID to Routing Locator (EID-to-RLOC) mappings used to encapsulate LISP data packets. The proposed approach is based on associating a version number to EID-to-RLOC mappings and the transport of such a version number in the LISP-specific header of LISP-encapsulated packets. LISP Map-Versioning is particularly useful to inform communicating Ingress Tunnel Routers (ITRs) and Egress Tunnel Routers (ETRs) about modifications of the mappings used to encapsulate packets. The mechanism is transparent to implementations not supporting this feature, since in the LISP- specific header and in the Map Records, bits used for Map-Versioning can be safely ignored by ITRs and ETRs that do not support the mechanism. This document defines an Experimental Protocol for the Internet community.
RFC6833 - Locator/ID Separation Protocol (LISP) Map-Server Interface
This document describes the Mapping Service for the Locator/ID Separation Protocol (LISP), implemented by two new types of LISP- speaking devices -- the LISP Map-Resolver and LISP Map-Server -- that provides a simplified "front end" for one or more Endpoint ID to Routing Locator mapping databases.
RFC6832 - Interworking between Locator/ID Separation Protocol (LISP) and Non-LISP Sites
This document describes techniques for allowing sites running the Locator/ID Separation Protocol (LISP) to interoperate with Internet sites that may be using either IPv4, IPv6, or both but that are not running LISP. A fundamental property of LISP-speaking sites is that they use Endpoint Identifiers (EIDs), rather than traditional IP addresses, in the source and destination fields of all traffic they emit or receive. While EIDs are syntactically identical to IPv4 or IPv6 addresses, normally routes to them are not carried in the global routing system, so an interoperability mechanism is needed for non- LISP-speaking sites to exchange traffic with LISP-speaking sites. This document introduces three such mechanisms. The first uses a new network element, the LISP Proxy Ingress Tunnel Router (Proxy-ITR), to act as an intermediate LISP Ingress Tunnel Router (ITR) for non-LISP- speaking hosts. Second, this document adds Network Address Translation (NAT) functionality to LISP ITRs and LISP Egress Tunnel Routers (ETRs) to substitute routable IP addresses for non-routable EIDs. Finally, this document introduces the Proxy Egress Tunnel Router (Proxy-ETR) to handle cases where a LISP ITR cannot send packets to non-LISP sites without encapsulation. This document defines an Experimental Protocol for the Internet community.
RFC6831 - The Locator/ID Separation Protocol (LISP) for Multicast Environments
This document describes how inter-domain multicast routing will function in an environment where Locator/ID Separation is deployed using the Locator/ID Separation Protocol (LISP) architecture. This document defines an Experimental Protocol for the Internet community.
RFC6830 - The Locator/ID Separation Protocol (LISP)
This document describes a network-layer-based protocol that enables separation of IP addresses into two new numbering spaces: Endpoint Identifiers (EIDs) and Routing Locators (RLOCs). No changes are required to either host protocol stacks or to the "core" of the Internet infrastructure. The Locator/ID Separation Protocol (LISP) can be incrementally deployed, without a "flag day", and offers Traffic Engineering, multihoming, and mobility benefits to early adopters, even when there are relatively few LISP-capable sites.
RFC6829 - Label Switched Path (LSP) Ping for Pseudowire Forwarding Equivalence Classes (FECs) Advertised over IPv6
The Multiprotocol Label Switching (MPLS) Label Switched Path (LSP) Ping and traceroute mechanisms are commonly used to detect and isolate data-plane failures in all MPLS LSPs, including LSPs used for each direction of an MPLS Pseudowire (PW). However, the LSP Ping and traceroute elements used for PWs are not specified for IPv6 address usage.
RFC6828 - Content Splicing for RTP Sessions
Content splicing is a process that replaces the content of a main multimedia stream with other multimedia content and delivers the substitutive multimedia content to the receivers for a period of time. Splicing is commonly used for insertion of local advertisements by cable operators, whereby national advertisement content is replaced with a local advertisement.
RFC6827 - Automatically Switched Optical Network (ASON) Routing for OSPFv2 Protocols
The ITU-T has defined an architecture and requirements for operating an Automatically Switched Optical Network (ASON).
RFC6826 - Multipoint LDP In-Band Signaling for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths
Consider an IP multicast tree, constructed by Protocol Independent Multicast (PIM), that needs to pass through an MPLS domain in which Multipoint LDP (mLDP) point-to-multipoint and/or multipoint-to-multipoint Labels Switched Paths (LSPs) can be created. The part of the IP multicast tree that traverses the MPLS domain can be instantiated as a multipoint LSP. When a PIM Join message is received at the border of the MPLS domain, information from that message is encoded into mLDP messages. When the mLDP messages reach the border of the next IP domain, the encoded information is used to generate PIM messages that can be sent through the IP domain. The result is an IP multicast tree consisting of a set of IP multicast sub-trees that are spliced together with a multipoint LSP. This document describes procedures regarding how IP multicast trees are spliced together with multipoint LSPs. [STANDARDS-TRACK]
RFC6825 - Traffic Engineering Database Management Information Base in Support of MPLS-TE/GMPLS
This memo defines the Management Information Base (MIB) objects for managing the Traffic Engineering Database (TED) information with extensions in support of the Multiprotocol Label Switching (MPLS) with Traffic Engineering (TE) as well as Generalized MPLS (GMPLS) for use with network management protocols. [STANDARDS-TRACK]
RFC6824 - TCP Extensions for Multipath Operation with Multiple Addresses
TCP/IP communication is currently restricted to a single path per connection, yet multiple paths often exist between peers. The simultaneous use of these multiple paths for a TCP/IP session would improve resource usage within the network and, thus, improve user experience through higher throughput and improved resilience to network failure.
RFC6823 - Advertising Generic Information in IS-IS
This document describes the manner in which generic application information (i.e., information not directly related to the operation of the Intermediate System to Intermediate System (IS-IS) protocol) should be advertised in IS-IS Link State Protocol Data Units (LSPs) and defines guidelines that should be used when flooding such information.
RFC6822 - IS-IS Multi-Instance
This document describes a mechanism that allows a single router to share one or more circuits among multiple Intermediate System to Intermediate System (IS-IS) routing protocol instances.
RFC6821 - Improving Peer Selection in Peer-to-peer Applications: Myths vs. Reality
Peer-to-peer (P2P) traffic optimization techniques that aim at improving locality in the peer selection process have attracted great interest in the research community and have been the subject of much discussion. Some of this discussion has produced controversial myths, some rooted in reality while others remain unfounded. This document evaluates the most prominent myths attributed to P2P optimization techniques by referencing the most relevant study or studies that have addressed facts pertaining to the myth. Using these studies, the authors hope to either confirm or refute each specific myth.
RFC6820 - Address Resolution Problems in Large Data Center Networks
This document examines address resolution issues related to the scaling of data centers with a very large number of hosts. The scope of this document is relatively narrow, focusing on address resolution (the Address Resolution Protocol (ARP) in IPv4 and Neighbor Discovery (ND) in IPv6) within a data center. This document is a product of the Internet Engineering Task Force (IETF).
RFC6819 - OAuth 2.0 Threat Model and Security Considerations
This document gives additional security considerations for OAuth, beyond those in the OAuth 2.0 specification, based on a comprehensive threat model for the OAuth 2.0 protocol. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6818 - Updates to the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
This document updates RFC 5280, the "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile". This document changes the set of acceptable encoding methods for the explicitText field of the user notice policy qualifier and clarifies the rules for converting internationalized domain name labels to ASCII. This document also provides some clarifications on the use of self-signed certificates, trust anchors, and some updated security considerations. [STANDARDS-TRACK]
RFC6817 - Low Extra Delay Background Transport (LEDBAT)
Low Extra Delay Background Transport (LEDBAT) is an experimental delay-based congestion control algorithm that seeks to utilize the available bandwidth on an end-to-end path while limiting the consequent increase in queueing delay on that path. LEDBAT uses changes in one-way delay measurements to limit congestion that the flow itself induces in the network. LEDBAT is designed for use by background bulk-transfer applications to be no more aggressive than standard TCP congestion control (as specified in RFC 5681) and to yield in the presence of competing flows, thus limiting interference with the network performance of competing flows. This document defines an Experimental Protocol for the Internet community.
RFC6816 - Simple Low-Density Parity Check (LDPC) Staircase Forward Error Correction (FEC) Scheme for FECFRAME
This document describes a fully specified simple Forward Error Correction (FEC) scheme for Low-Density Parity Check (LDPC) Staircase codes that can be used to protect media streams along the lines defined by FECFRAME. These codes have many interesting properties: they are systematic codes, they perform close to ideal codes in many use-cases, and they also feature very high encoding and decoding throughputs. LDPC-Staircase codes are therefore a good solution to protect a single high bitrate source flow or to protect globally several mid-rate flows within a single FECFRAME instance. They are also a good solution whenever the processing load of a software encoder or decoder must be kept to a minimum.
RFC6815 - Applicability Statement for RFC 2544: Use on Production Networks Considered Harmful
The Benchmarking Methodology Working Group (BMWG) has been developing key performance metrics and laboratory test methods since 1990, and continues this work at present. The methods described in RFC 2544 are intended to generate traffic that overloads network device resources in order to assess their capacity. Overload of shared resources would likely be harmful to user traffic performance on a production network, and there are further negative consequences identified with production application of the methods. This memo clarifies the scope of RFC 2544 and other IETF BMWG benchmarking work for isolated test environments only, and it encourages new standards activity for measurement methods applicable outside that scope. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6814 - Formally Deprecating Some IPv4 Options
A number of IPv4 options have become obsolete in practice, but have never been formally deprecated. This document deprecates such IPv4 options, thus cleaning up the corresponding IANA registry. Additionally, it obsoletes RFCs 1385, 1393, 1475, and 1770, and requests that the RFC Editor change their status to Historic. [STANDARDS-TRACK]
RFC6813 - The Network Endpoint Assessment (NEA) Asokan Attack Analysis
The Network Endpoint Assessment (NEA) protocols are subject to a subtle forwarding attack that has become known as the NEA Asokan Attack. This document describes the attack and countermeasures that may be mounted. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6812 - Cisco Service-Level Assurance Protocol
Cisco's Service-Level Assurance Protocol (Cisco's SLA Protocol) is a Performance Measurement protocol that has been widely deployed. The protocol is used to measure service-level parameters such as network latency, delay variation, and packet/frame loss. This document describes the Cisco SLA Protocol Measurement-Type UDP-Measurement, to enable vendor interoperability. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6811 - BGP Prefix Origin Validation
To help reduce well-known threats against BGP including prefix mis- announcing and monkey-in-the-middle attacks, one of the security requirements is the ability to validate the origination Autonomous System (AS) of BGP routes. More specifically, one needs to validate that the AS number claiming to originate an address prefix (as derived from the AS_PATH attribute of the BGP route) is in fact authorized by the prefix holder to do so. This document describes a simple validation mechanism to partially satisfy this requirement. [STANDARDS-TRACK]
RFC6810 - The Resource Public Key Infrastructure (RPKI) to Router Protocol
In order to verifiably validate the origin Autonomous Systems of BGP announcements, routers need a simple but reliable mechanism to receive Resource Public Key Infrastructure (RFC 6480) prefix origin data from a trusted cache. This document describes a protocol to deliver validated prefix origin data to routers. [STANDARDS-TRACK]
RFC6809 - Mechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP)
This specification defines a new SIP header field, Feature-Caps. The Feature-Caps header field conveys feature-capability indicators that are used to indicate support of features and capabilities for SIP entities that are not represented by the Uniform Resource Identifier (URI) of the Contact header field.
RFC6808 - Test Plan and Results Supporting Advancement of RFC 2679 on the Standards Track
This memo provides the supporting test plan and results to advance RFC 2679 on one-way delay metrics along the Standards Track, following the process in RFC 6576. Observing that the metric definitions themselves should be the primary focus rather than the implementations of metrics, this memo describes the test procedures to evaluate specific metric requirement clauses to determine if the requirement has been interpreted and implemented as intended. Two completely independent implementations have been tested against the key specifications of RFC 2679. This memo also provides direct input for development of a revision of RFC 2679. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6807 - Population Count Extensions to Protocol Independent Multicast (PIM)
This specification defines a method for providing multicast distribution-tree accounting data. Simple extensions to the Protocol Independent Multicast (PIM) protocol allow a rough approximation of tree-based data in a scalable fashion. This document defines an Experimental Protocol for the Internet community.
RFC6806 - Kerberos Principal Name Canonicalization and Cross-Realm Referrals
This memo documents a method for a Kerberos Key Distribution Center (KDC) to respond to client requests for Kerberos tickets when the client does not have detailed configuration information on the realms of users or services. The KDC will handle requests for principals in other realms by returning either a referral error or a cross-realm Ticket-Granting Ticket (TGT) to another realm on the referral path. The clients will use this referral information to reach the realm of the target principal and then receive the ticket. This memo also provides a mechanism for verifying that a request has not been tampered with in transit. This memo updates RFC 4120. [STANDARDS-TRACK]
RFC6805 - The Application of the Path Computation Element Architecture to the Determination of a Sequence of Domains in MPLS and GMPLS
Computing optimum routes for Label Switched Paths (LSPs) across multiple domains in MPLS Traffic Engineering (MPLS-TE) and GMPLS networks presents a problem because no single point of path computation is aware of all of the links and resources in each domain. A solution may be achieved using the Path Computation Element (PCE) architecture.
RFC6804 - DISCOVER: Supporting Multicast DNS Queries
This document describes the DISCOVER opcode, an experimental extension to the Domain Name System (DNS) to use multicast queries for resource discovery. This opcode was tested in experiments run during 1995 and 1996 for the Topology Based Domain Search (TBDS) project. This project is no longer active and there are no current plans to restart it. TBDS was the first known use of multicast transport for DNS. A client multicasts a DNS query using the DISCOVER opcode and processes the multiple responses that may result. This document defines a Historic Document for the Internet community.
RFC6803 - Camellia Encryption for Kerberos 5
This document specifies two encryption types and two corresponding checksum types for the Kerberos cryptosystem framework defined in RFC 3961. The new types use the Camellia block cipher in CBC mode with ciphertext stealing and the CMAC algorithm for integrity protection. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6802 - Ericsson Two-Way Active Measurement Protocol (TWAMP) Value-Added Octets
This memo describes an extension to the Two-Way Active Measurement Protocol (TWAMP). Specifically, it extends the TWAMP-Test protocol, which identifies and manages packet trains, in order to measure capacity metrics like the available path capacity, tight section capacity, and UDP delivery rate in the forward and reverse path directions. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6801 - Pseudo Content Delivery Protocol (CDP) for Protecting Multiple Source Flows in the Forward Error Correction (FEC) Framework
This document provides a pseudo Content Delivery Protocol (CDP) to protect multiple source flows with one or more repair flows based on the Forward Error Correction (FEC) Framework and the Session Description Protocol (SDP) elements defined for the framework. The purpose of the document is not to provide a full-fledged protocol but to show how the defined framework and SDP elements can be combined together to implement a CDP. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6798 - RTP Control Protocol (RTCP) Extended Report (XR) Block for Packet Delay Variation Metric Reporting
This document defines an RTP Control Protocol (RTCP) Extended Report (XR) block that allows the reporting of packet delay variation metrics for a range of RTP applications. [STANDARDS-TRACK]
RFC6797 - HTTP Strict Transport Security (HSTS)
This specification defines a mechanism enabling web sites to declare themselves accessible only via secure connections and/or for users to be able to direct their user agent(s) to interact with given sites only over secure connections. This overall policy is referred to as HTTP Strict Transport Security (HSTS). The policy is declared by web sites via the Strict-Transport-Security HTTP response header field and/or by other means, such as user agent configuration, for example. [STANDARDS-TRACK]
RFC6796 - A User Agent Profile Data Set for Media Policy
This specification defines an XML document format to describe the media properties of Session Initiation Protocol (SIP) sessions. Examples for media properties are the codecs or media types used in the session. This document also defines an XML document format to describe policies that limit the media properties of SIP sessions. [STANDARDS-TRACK]
RFC6795 - A Session Initiation Protocol (SIP) Event Package for Session-Specific Policies
This specification defines a Session Initiation Protocol (SIP) event package for session-specific policies. This event package enables user agents (UAs) to subscribe to session policies for a SIP session and to receive notifications if these policies change. [STANDARDS-TRACK]
RFC6794 - A Framework for Session Initiation Protocol (SIP) Session Policies
Proxy servers play a central role as an intermediary in the Session Initiation Protocol (SIP) as they define and impact policies on call routing, rendezvous, and other call features. This document specifies a framework for SIP session policies that provides a standard mechanism by which a proxy can define or influence policies on sessions, such as the codecs or media types to be used. It defines a model, an overall architecture and new protocol mechanisms for session policies. [STANDARDS-TRACK]
RFC6793 - BGP Support for Four-Octet Autonomous System (AS) Number Space
The Autonomous System number is encoded as a two-octet entity in the base BGP specification. This document describes extensions to BGP to carry the Autonomous System numbers as four-octet entities. This document obsoletes RFC 4893 and updates RFC 4271. [STANDARDS-TRACK]
RFC6792 - Guidelines for Use of the RTP Monitoring Framework
This memo proposes an extensible Real-time Transport Protocol (RTP) monitoring framework for extending the RTP Control Protocol (RTCP) with a new RTCP Extended Reports (XR) block type to report new metrics regarding media transmission or reception quality. In this framework, a new XR block should contain a single metric or a small number of metrics relevant to a single parameter of interest or concern, rather than containing a number of metrics that attempt to provide full coverage of all those parameters of concern to a specific application. Applications may then "mix and match" to create a set of blocks that cover their set of concerns. Where possible, a specific block should be designed to be reusable across more than one application, for example, for all of voice, streaming audio, and video. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6791 - Stateless Source Address Mapping for ICMPv6 Packets
A stateless IPv4/IPv6 translator may receive ICMPv6 packets containing non-IPv4-translatable addresses as the source. These packets should be passed across the translator as ICMP packets directed to the IPv4 destination. This document presents recommendations for source address translation in ICMPv6 headers to handle such cases. [STANDARDS-TRACK]
RFC6790 - The Use of Entropy Labels in MPLS Forwarding
Load balancing is a powerful tool for engineering traffic across a network. This memo suggests ways of improving load balancing across MPLS networks using the concept of "entropy labels". It defines the concept, describes why entropy labels are useful, enumerates properties of entropy labels that allow maximal benefit, and shows how they can be signaled and used for various applications. This document updates RFCs 3031, 3107, 3209, and 5036. [STANDARDS-TRACK]
RFC6789 - Congestion Exposure (ConEx) Concepts and Use Cases
This document provides the entry point to the set of documentation about the Congestion Exposure (ConEx) protocol. It explains the motivation for including a ConEx marking at the IP layer: to expose information about congestion to network nodes. Although such information may have a number of uses, this document focuses on how the information communicated by the ConEx marking can serve as the basis for significantly more efficient and effective traffic management than what exists on the Internet today. This document is not an Internet Standards Track specification; it is published for informational purposes.
RFC6788 - The Line-Identification Option
In Ethernet-based aggregation networks, several subscriber premises may be logically connected to the same interface of an Edge Router. This document proposes a method for the Edge Router to identify the subscriber premises using the contents of the received Router Solicitation messages. The applicability is limited to broadband network deployment scenarios in which multiple user ports are mapped to the same virtual interface on the Edge Router. [STANDARDS-TRACK]
RFC6787 - Media Resource Control Protocol Version 2 (MRCPv2)
The Media Resource Control Protocol Version 2 (MRCPv2) allows client hosts to control media service resources such as speech synthesizers, recognizers, verifiers, and identifiers residing in servers on the network. MRCPv2 is not a "stand-alone" protocol -- it relies on other protocols, such as the Session Initiation Protocol (SIP), to coordinate MRCPv2 clients and servers and manage sessions between them, and the Session Description Protocol (SDP) to describe, discover, and exchange capabilities. It also depends on SIP and SDP to establish the media sessions and associated parameters between the media source or sink and the media server. Once this is done, the MRCPv2 exchange operates over the control session established above, allowing the client to control the media processing resources on the speech resource server. [STANDARDS-TRACK]
RFC6786 - Encrypting the Protocol for Carrying Authentication for Network Access (PANA) Attribute-Value Pairs
This document specifies a mechanism for delivering the Protocol for Carrying Authentication for Network Access (PANA) Attribute-Value Pairs (AVPs) in encrypted form. [STANDARDS-TRACK]
RFC6785 - Support for Internet Message Access Protocol (IMAP) Events in Sieve
Sieve defines an email filtering language that can, in principle, plug into any point in the processing of an email message. As defined in the base specification, it plugs into mail delivery. This document defines how Sieve can plug into points in IMAP where messages are created or changed, adding the option of user-defined or installation-defined filtering (or, with Sieve extensions, features such as notifications). Because this requires future Sieve extensions to specify their interactions with this one, this document updates the base Sieve specification, RFC 5228. [STANDARDS-TRACK]