RFC Abstracts

RFC5173 - Sieve Email Filtering: Body Extension
This document defines a new command for the "Sieve" email filtering language that tests for the occurrence of one or more strings in the body of an email message. [STANDARDS-TRACK]
RFC5172 - Negotiation for IPv6 Datagram Compression Using IPv6 Control Protocol
The Point-to-Point Protocol (PPP) provides a standard method of encapsulating network-layer protocol information over point-to-point links. PPP also defines an extensible Link Control Protocol, and proposes a family of Network Control Protocols (NCPs) for establishing and configuring different network-layer protocols.
RFC5171 - Cisco Systems UniDirectional Link Detection (UDLD) Protocol
This document describes a Cisco Systems protocol that can be used to detect and disable unidirectional Ethernet fiber or copper links caused, for instance, by mis-wiring of fiber strands, interface malfunctions, media converters' faults, etc. It operates at Layer 2 in conjunction with IEEE 802.3's existing Layer 1 fault detection mechanisms.
RFC5170 - Low Density Parity Check (LDPC) Staircase and Triangle Forward Error Correction (FEC) Schemes
This document describes two Fully-Specified Forward Error Correction (FEC) Schemes, Low Density Parity Check (LDPC) Staircase and LDPC Triangle, and their application to the reliable delivery of data objects on the packet erasure channel (i.e., a communication path where packets are either received without any corruption or discarded during transmission). These systematic FEC codes belong to the well- known class of "Low Density Parity Check" codes, and are large block FEC codes in the sense of RFC 3453. [STANDARDS-TRACK]
RFC5169 - Handover Key Management and Re-Authentication Problem Statement
This document describes the Handover Keying (HOKEY) re-authentication problem statement. The current Extensible Authentication Protocol (EAP) keying framework is not designed to support re-authentication and handovers without re-executing an EAP method. This often causes unacceptable latency in various mobile wireless environments. This document details the problem and defines design goals for a generic mechanism to reuse derived EAP keying material for handover. This memo provides information for the Internet community.
RFC5168 - XML Schema for Media Control
This document defines an Extensible Markup Language (XML) Schema for video fast update in a tightly controlled environment, developed by Microsoft, Polycom, Radvision and used by multiple vendors. This document describes a method that has been deployed in Session Initiation Protocol (SIP) based systems over the last three years and is being used across real-time interactive applications from different vendors in an interoperable manner. New implementations are discouraged from using the method described except for backward compatibility purposes. New implementations are required to use the new Full Intra Request command in the RTP Control Protocol (RTCP) channel. This memo provides information for the Internet community.
RFC5167 - Media Server Control Protocol Requirements
This document addresses the communication between an application server and media server. The current work in IETF working groups shows these logical entities, but it does not address the physical decomposition and the protocol between the entities.
RFC5166 - Metrics for the Evaluation of Congestion Control Mechanisms
This document discusses the metrics to be considered in an evaluation of new or modified congestion control mechanisms for the Internet. These include metrics for the evaluation of new transport protocols, of proposed modifications to TCP, of application-level congestion control, and of Active Queue Management (AQM) mechanisms in the router. This document is the first in a series of documents aimed at improving the models that we use in the evaluation of transport protocols.
RFC5165 - A Uniform Resource Name (URN) Namespace for the Open Geospatial Consortium (OGC)
This document describes a Uniform Resource Name (URN) namespace that is engineered by the Open Geospatial Consortium (OGC) for naming persistent resources published by the OGC. The formal Namespace IDentifier (NID) is "ogc". This memo provides information for the Internet community.
RFC5164 - Mobility Services Transport: Problem Statement
There are ongoing activities in the networking community to develop solutions that aid in IP handover mechanisms between heterogeneous wired and wireless access systems including, but not limited to, IEEE 802.21. Intelligent access selection, taking into account link-layer attributes, requires the delivery of a variety of different information types to the terminal from different sources within the network and vice-versa. The protocol requirements for this signalling have both transport and security issues that must be considered. The signalling must not be constrained to specific link types, so there is at least a common component to the signalling problem, which is within the scope of the IETF. This document presents a problem statement for this core problem. This memo provides information for the Internet community.
RFC5163 - Extension Formats for Unidirectional Lightweight Encapsulation (ULE) and the Generic Stream Encapsulation (GSE)
This document describes a set of Extension Headers for the Unidirectional Lightweight Encapsulation (ULE), RFC 4326.
RFC5162 - IMAP4 Extensions for Quick Mailbox Resynchronization
This document defines an IMAP4 extension, which gives an IMAP client the ability to quickly resynchronize any previously opened mailbox as part of the SELECT command, without the need for server-side state or additional client round-trips. This extension also introduces a new response that allows for a more compact representation of a list of expunged messages (and always includes the Unique Identifiers (UIDs) expunged). [STANDARDS-TRACK]
RFC5161 - The IMAP ENABLE Extension
Most IMAP extensions are used by the client when it wants to and the server supports it. However, a few extensions require the server to know whether a client supports that extension. The ENABLE extension allows an IMAP client to say which extensions it supports. [STANDARDS-TRACK]
RFC5160 - Considerations of Provider-to-Provider Agreements for Internet-Scale Quality of Service (QoS)
This memo analyzes provider-to-provider Quality of Service (QoS) agreements suitable for a global QoS-enabled Internet. It defines terminology relevant to inter-domain QoS models. It proposes a new concept denoted by Meta-QoS-Class (MQC). This concept could potentially drive and federate the way QoS inter-domain relationships are built between providers. It opens up new perspectives for a QoS- enabled Internet that retains, as much as possible, the openness of the existing best-effort Internet. This memo provides information for the Internet community.
RFC5159 - Session Description Protocol (SDP) Attributes for Open Mobile Alliance (OMA) Broadcast (BCAST) Service and Content Protection
This document provides descriptions of Session Description Protocol (SDP) attributes used by the Open Mobile Alliance's Broadcast Service and Content Protection specification. This memo provides information for the Internet community.
RFC5158 - 6to4 Reverse DNS Delegation Specification
This memo describes the service mechanism for entering a delegation of DNS servers that provide reverse lookup of 6to4 IPv6 addresses into the 6to4 reverse zone file. The mechanism is based on a conventional DNS delegation service interface, allowing the service client to enter the details of a number of DNS servers for the delegated domain. In the context of a 6to4 reverse delegation, the client is primarily authenticated by its source address used in the delegation request, and is authorized to use the function if its IPv6 address prefix corresponds to an address from within the requested 6to4 delegation address block. This memo provides information for the Internet community.
RFC5157 - IPv6 Implications for Network Scanning
The much larger default 64-bit subnet address space of IPv6 should in principle make traditional network (port) scanning techniques used by certain network worms or scanning tools less effective. While traditional network scanning probes (whether by individuals or automated via network worms) may become less common, administrators should be aware that attackers may use other techniques to discover IPv6 addresses on a target network, and thus they should also be aware of measures that are available to mitigate them. This informational document discusses approaches that administrators could take when planning their site address allocation and management strategies as part of a defence-in-depth approach to network security. This memo provides information for the Internet community.
RFC5156 - Special-Use IPv6 Addresses
This document is a compilation of special IPv6 addresses defined in other RFCs. It can be used as a checklist of invalid routing prefixes for developing filtering policies for routes and IP packets. It does not discuss addresses that are assigned to operators and users through the Regional Internet Registries. This memo provides information for the Internet community.
RFC5155 - DNS Security (DNSSEC) Hashed Authenticated Denial of Existence
The Domain Name System Security (DNSSEC) Extensions introduced the NSEC resource record (RR) for authenticated denial of existence. This document introduces an alternative resource record, NSEC3, which similarly provides authenticated denial of existence. However, it also provides measures against zone enumeration and permits gradual expansion of delegation-centric zones. [STANDARDS-TRACK]
RFC5154 - IP over IEEE 802.16 Problem Statement and Goals
This document specifies problems in running IP over IEEE 802.16 networks by identifying specific gaps in the IEEE 802.16 Media Access Control (MAC) for IPv4 and IPv6 support. This document also provides an overview of IEEE 802.16 network characteristics and convergence sublayers. Common terminology used for the base guideline while defining the solution framework is also presented. This memo provides information for the Internet community.
RFC5153 - IP Flow Information Export (IPFIX) Implementation Guidelines
The IP Flow Information Export (IPFIX) protocol defines how IP Flow information can be exported from routers, measurement probes, or other devices. This document provides guidelines for the implementation and use of the IPFIX protocol. Several sets of guidelines address Template management, transport-specific issues, implementation of Exporting and Collecting Processes, and IPFIX implementation on middleboxes (such as firewalls, network address translators, tunnel endpoints, packet classifiers, etc.). This memo provides information for the Internet community.
RFC5152 - A Per-Domain Path Computation Method for Establishing Inter-Domain Traffic Engineering (TE) Label Switched Paths (LSPs)
This document specifies a per-domain path computation technique for establishing inter-domain Traffic Engineering (TE) Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) Label Switched Paths (LSPs). In this document, a domain refers to a collection of network elements within a common sphere of address management or path computational responsibility such as Interior Gateway Protocol (IGP) areas and Autonomous Systems.
RFC5151 - Inter-Domain MPLS and GMPLS Traffic Engineering -- Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Extensions
This document describes procedures and protocol extensions for the use of Resource Reservation Protocol-Traffic Engineering (RSVP-TE) signaling in Multiprotocol Label Switching-Traffic Engineering (MPLS-TE) packet networks and Generalized MPLS (GMPLS) packet and non-packet networks to support the establishment and maintenance of Label Switched Paths that cross domain boundaries.
RFC5150 - Label Switched Path Stitching with Generalized Multiprotocol Label Switching Traffic Engineering (GMPLS TE)
In certain scenarios, there may be a need to combine several Generalized Multiprotocol Label Switching (GMPLS) Label Switched Paths (LSPs) such that a single end-to-end (e2e) LSP is realized and all traffic from one constituent LSP is switched onto the next LSP. We will refer to this as "LSP stitching", the key requirement being that a constituent LSP not be allocated to more than one e2e LSP. The constituent LSPs will be referred to as "LSP segments" (S-LSPs).
RFC5149 - Service Selection for Mobile IPv6
In some Mobile IPv6 deployments, identifying the mobile node or the mobility service subscriber is not enough to distinguish between multiple services possibly provisioned to the said mobile node and its mobility service subscription. A capability to specify different services in addition to the mobile node identity can be leveraged to provide flexibility for mobility service providers on provisioning multiple services to one mobility service subscription. This document describes a Service Selection Mobility Option for both conventional Mobile IPv6 and Proxy Mobile IPv6 that is intended to assist home agents to make a specific service selection for the mobility service subscription during the binding registration procedure. This memo provides information for the Internet community.
RFC5148 - Jitter Considerations in Mobile Ad Hoc Networks (MANETs)
This document provides recommendations for jittering (randomly modifying timing) of control traffic transmissions in Mobile Ad hoc NETwork (MANET) routing protocols to reduce the probability of transmission collisions. This memo provides information for the Internet community.
RFC5147 - URI Fragment Identifiers for the text/plain Media Type
This memo defines URI fragment identifiers for text/plain MIME entities. These fragment identifiers make it possible to refer to parts of a text/plain MIME entity, either identified by character position or range, or by line position or range. Fragment identifiers may also contain information for integrity checks to make them more robust. [STANDARDS-TRACK]
RFC5146 - Interworking Requirements to Support Operation of MPLS-TE over GMPLS Networks
Operation of a Multiprotocol Label Switching (MPLS) traffic engineering (TE) network as a client network to a Generalized MPLS (GMPLS) network has enhanced operational capabilities compared to those provided by a coexistent protocol model (i.e., operation of MPLS-TE over an independently managed transport layer).
RFC5145 - Framework for MPLS-TE to GMPLS Migration
The migration from Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) to Generalized MPLS (GMPLS) is the process of evolving an MPLS-TE control plane to a GMPLS control plane. An appropriate migration strategy will be selected based on various factors including the service provider's network deployment plan, customer demand, and operational policy.
RFC5144 - A Domain Availability Check (DCHK) Registry Type for the Internet Registry Information Service (IRIS)
This document describes a lightweight domain availability service using the Internet Registry Information Service (IRIS) framework and the data model of the IRIS Domain Registry (DREG) service. [STANDARDS-TRACK]
RFC5143 - Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Circuit Emulation Service over MPLS (CEM) Encapsulation
This document describes a historical method for encapsulating Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Path signals for transport across packet-switched networks (PSNs). The PSNs explicitly supported by this document include MPLS and IP. Note that RFC 4842 describes the standards-track protocol for this functionality, and new implementations must use RFC 4842 rather than this document except when interoperability with older implementations is desired. This memo defines a Historic Document for the Internet community.
RFC5142 - Mobility Header Home Agent Switch Message
This document specifies a new Mobility Header message type that can be used between a home agent and mobile node to signal to a mobile node that it should acquire a new home agent. [STANDARDS-TRACK]
RFC5141 - A Uniform Resource Name (URN) Namespace for the International Organization for Standardization (ISO)
This document describes a Uniform Resource Name Namespace Identification (URN NID) for the International Organization for Standardization (ISO). This URN NID is intended for use for the identification of persistent resources published by the ISO standards body (including documents, document metadata, extracted resources such as standard schemata and standard value sets, and other resources). This memo provides information for the Internet community.
RFC5140 - A Telephony Gateway REgistration Protocol (TGREP)
This document describes the Telephony Gateway Registration Protocol (TGREP) for registration of telephony prefixes supported by telephony gateways and soft switches. The registration mechanism can also be used to export resource information. The prefix and resource information can then be passed on to a Telephony Routing over IP (TRIP) Location Server, which in turn can propagate that routing information within and between Internet Telephony Administrative Domains (ITADs). TGREP shares a lot of similarities with the TRIP protocol. It has similar procedures and finite state machine for session establishment. It also shares the same format for messages and a subset of attributes with TRIP. [STANDARDS-TRACK]
RFC5139 - Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)
This document defines an XML format for the representation of civic location. This format is designed for use with Presence Information Data Format Location Object (PIDF-LO) documents and replaces the civic location format in RFC 4119. The format is based on the civic address definition in PIDF-LO, but adds several new elements based on the civic types defined for Dynamic Host Configuration Protocol (DHCP), and adds a hierarchy to address complex road identity schemes. The format also includes support for the xml:lang language tag and restricts the types of elements where appropriate. [STANDARDS-TRACK]
RFC5138 - A Uniform Resource Name (URN) Namespace for the Commission for the Management and Application of Geoscience Information (CGI)
This document describes a URN (Uniform Resource Name) namespace that is engineered by the Commission for the Management and Application of Geoscience Information (CGI) for naming (i) persistent resources published by the CGI and (ii) resources published by organizations that wish them to be used in the context of services conforming to protocols and agreements issued by CGI. The formal Namespace Identifier (NID) is "cgi". This memo provides information for the Internet community.
RFC5137 - ASCII Escaping of Unicode Characters
There are a number of circumstances in which an escape mechanism is needed in conjunction with a protocol to encode characters that cannot be represented or transmitted directly. With ASCII coding, the traditional escape has been either the decimal or hexadecimal numeric value of the character, written in a variety of different ways. The move to Unicode, where characters occupy two or more octets and may be coded in several different forms, has further complicated the question of escapes. This document discusses some options now in use and discusses considerations for selecting one for use in new IETF protocols, and protocols that are now being internationalized. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC5136 - Defining Network Capacity
Measuring capacity is a task that sounds simple, but in reality can be quite complex. In addition, the lack of a unified nomenclature on this subject makes it increasingly difficult to properly build, test, and use techniques and tools built around these constructs. This document provides definitions for the terms 'Capacity' and 'Available Capacity' related to IP traffic traveling between a source and destination in an IP network. By doing so, we hope to provide a common framework for the discussion and analysis of a diverse set of current and future estimation techniques. This memo provides information for the Internet community.
RFC5135 - IP Multicast Requirements for a Network Address Translator (NAT) and a Network Address Port Translator (NAPT)
This document specifies requirements for a for a Network Address Translator (NAT) and a Network Address Port Translator (NAPT) that support Any Source IP Multicast or Source-Specific IP Multicast. An IP multicast-capable NAT device that adheres to the requirements of this document can optimize the operation of IP multicast applications that are generally unaware of IP multicast NAT devices. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC5134 - A Uniform Resource Name Namespace for the EPCglobal Electronic Product Code (EPC) and Related Standards
This document describes URN namespaces that will identify various objects within the EPCglobal system for identifying products within ecommerce and supply chain management applications. This memo provides information for the Internet community.
RFC5133 - Terminal Endpoint Identifier (TEI) Query Request Number Change
The Integrated Services Digital Network (ISDN) Q.921-User Adaptation Layer (IUA) Protocol, described in RFC 4233, defines the message type of Terminal Endpoint Identifier (TEI) Query Request messages as 5. However, this number is already being used by the Digital Private Network Signaling System (DPNSS)/Digital Access Signaling System 2 (DASS 2) Extensions (DUA) to the IUA Protocol described in RFC 4129. This document updates RFC 4233 such that the message type of TEI Query Request messages is 8. [STANDARDS-TRACK]
RFC5132 - IP Multicast MIB
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes objects used for managing multicast function, independent of the specific multicast protocol(s) in use. This document obsoletes RFC 2932. [STANDARDS-TRACK]
RFC5131 - A MIB Textual Convention for Language Tags
This MIB module defines a textual convention to represent BCP 47 language tags. The intent is that this textual convention will be imported and used in MIB modules that would otherwise define their own representation. [STANDARDS-TRACK]
RFC5130 - A Policy Control Mechanism in IS-IS Using Administrative Tags
This document describes an extension to the IS-IS protocol to add operational capabilities that allow for ease of management and control over IP prefix distribution within an IS-IS domain. This document enhances the IS-IS protocol by extending the information that an Intermediate System (IS) router can place in Link State Protocol (LSP) Data Units for policy use. This extension will provide operators with a mechanism to control IP prefix distribution throughout multi-level IS-IS domains. [STANDARDS-TRACK]
RFC5129 - Explicit Congestion Marking in MPLS
RFC 3270 defines how to support the Diffserv architecture in MPLS networks, including how to encode Diffserv Code Points (DSCPs) in an MPLS header. DSCPs may be encoded in the EXP field, while other uses of that field are not precluded. RFC 3270 makes no statement about how Explicit Congestion Notification (ECN) marking might be encoded in the MPLS header. This document defines how an operator might define some of the EXP codepoints for explicit congestion notification, without precluding other uses. [STANDARDS-TRACK]
RFC5128 - State of Peer-to-Peer (P2P) Communication across Network Address Translators (NATs)
This memo documents the various methods known to be in use by applications to establish direct communication in the presence of Network Address Translators (NATs) at the current time. Although this memo is intended to be mainly descriptive, the Security Considerations section makes some purely advisory recommendations about how to deal with security vulnerabilities the applications could inadvertently create when using the methods described. This memo covers NAT traversal approaches used by both TCP- and UDP-based applications. This memo is not an endorsement of the methods described, but merely an attempt to capture them in a document. This memo provides information for the Internet community.
RFC5127 - Aggregation of Diffserv Service Classes
In the core of a high-capacity network, service differentiation may still be needed to support applications' utilization of the network. Applications with similar traffic characteristics and performance requirements are mapped into Diffserv service classes based on end- to-end behavior requirements of the applications. However, some network segments may be configured in such a way that a single forwarding treatment may satisfy the traffic characteristics and performance requirements of two or more service classes. In these cases, it may be desirable to aggregate two or more Diffserv service classes into a single forwarding treatment. This document provides guidelines for the aggregation of Diffserv service classes into forwarding treatments. This memo provides information for the Internet community.
RFC5126 - CMS Advanced Electronic Signatures (CAdES)
This document defines the format of an electronic signature that can remain valid over long periods. This includes evidence as to its validity even if the signer or verifying party later attempts to deny (i.e., repudiates) the validity of the signature.
RFC5125 - Reclassification of RFC 3525 to Historic
This document reclassifies RFC 3525, Gateway Control Protocol Version 1, to Historic Status. This memo also obsoletes RFC 3525. This memo provides information for the Internet community.
RFC5124 - Extended Secure RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/SAVPF)
An RTP profile (SAVP) for secure real-time communications and another profile (AVPF) to provide timely feedback from the receivers to a sender are defined in RFC 3711 and RFC 4585, respectively. This memo specifies the combination of both profiles to enable secure RTP communications with feedback. [STANDARDS-TRACK]