Multiprotocol Label Switching (mpls)


In addition to this official charter maintained by the IETF Secretariat, there is additional information about this working group on the Web at:
MPLS-TP wiki

Last Modified: 2009-06-29

Additional information is available at tools.ietf.org/wg/mpls

Chair(s):

Routing Area Director(s):

Routing Area Advisor:

Secretary(ies):

Mailing Lists:

General Discussion: mpls@ietf.org
To Subscribe: https://www.ietf.org/mailman/listinfo/mpls
Archive: http://www.ietf.org/mail-archive/web/mpls/current/maillist.html

Description of Working Group:

The MPLS working group is responsible for standardizing a base
technology for using label switching and for the implementation of
label-switched paths over various packet based link-level
technologies, such as Packet-over-Sonet, Frame Relay, ATM, and
LAN technologies (e.g. all forms of Ethernet, Token Ring, etc.).
This includes procedures and protocols for the distribution of
labels between routers and encapsulation.

The working group is also responsible for specifying the necessary
management objects (e.g. as part of MIB modules) and OAM techniques for
the functionality specified in the base MPLS technology.

The first generation of the MPLS standards are largely complete,
and the current WG work items are:

- Define requirements, mechanisms and protocol extensions for
point-to-multipoint (P2MP) MPLS

- Define requirements, mechanisms and protocol extensions for
traffic engineered point-to-multipoint (P2MP) MPLS, including
soft preemption

- Define requirements and mechanisms for MPLS OAM

- Define an overall OAM framework for MPLS applications

- MPLS-specific aspects of traffic engineering for multi-areas/multi-AS
in cooperation with the CCAMP WG

- Determine (with CCAMP) what procedures are appropriate for evaluating
proposals to extend the MPLS and GMPLS protocols, and document these

- Document current implementation practices for MPLS load sharing

- Include extensions to the MPLS WG protocols and RFCs necessary to
create an MPLS Transport Profile (MPLS TP). The work on the MPLS TP will
be coordinated between the working groups (eg, MPLS, CCAMP, PWE3, and
L2PVN) that are chartered to do MPLS TP work.

The Working Group chairs tracking of the working group documents can be
viewed at http://www.tla-group.com/~mpls/mpls-wg-docs.htm

Goals and Milestones:

Done  Submit documents from original MPLS effort to IESG
Done  Framework for IP multicast over label-switched paths ready for advancement.
Done  LDP fault tolerance specification ready for advancement to Proposed Standard.
Done  Submit Definitions of Managed Objects for MultoiProtocol Label Switching, Label Distribution Protocol (LDP) to the IESG for publication as Proposed Standards
Done  Specification for MPLS-specific recovery ready for advancement.
Done  Submit Multiprotocol Label Switching (MPLS) Forward Equivalency Class-To-Next Hop Label Forwarding Entry Management Information Base to the IESG for publication as Proposed Standards
Done  Submit Multiprotocol Label Switching (MPLS) Label Switching Router (LSR), Management Information Base to the IESG for publication as Proposed Standards
Done  Submit Multiprotocol Label Switching (MPLS) Management Overview to the IESG for publication as Proposed Standards
Done  Submit Definitions of Textual Conventions for Multiprotocol Label Switching (MPLS) Management to the IESG for publication as Proposed Standards
Done  Submit Multiprotocol Label Switching (MPLS) Traffic Engineering Management Information Base to the IESG for publication as Proposed Standards
Done  Submit the Traffic Engineering Link MIB to the IESG for as a Proposed Standard
Done  Submit a specification on Encapsulations to carry MPLS over IP and GRE to the IESG for as a Proposed Standard
Done  Submit specification on LSP Ping to the IESG for publication as a Proposed Standard
Done  Submit a document defining the scope, requirements, and issues to resolve for setup of P2MP TE LSPs (MPLS and GMPLS)
Done  Submit an OAM Framework Document to the IESG for publication as an Informational RFC
Done  Submit a BCP on MPLS load sharing to the IESG
Done  Submit specification on LSR Self Test to the IESG for publication as a Proposed Standard
Done  Submit document(s) specifying protocol extensions, enhancements and mechanisms for setup of P2MP TE LSPs
Done  Submit point to multipoint TE MIB to IESG as proposed standard
Done  Submit EXP field clarification document to IESG as proposed standard
Done  Submit a specification on Soft Pre-emption of LSP Tunnels to the IESG for publication as a Proposed Standard
Jan 2009  Submit LDP extensions for P2MP LSPs
Done  Submit MPLS security framework for publication as an informational RFC
Jun 2009  Submit requirements for point-to-multipoint extensions to LDP

Internet-Drafts:

Detecting Data Plane Failures in Point-to-Multipoint Multiprotocol Label Switching (MPLS) - Extensions to LSP Ping (66607 bytes)
Component Link Recording and Resource Control for TE Link Bundles (29018 bytes)
Label Distribution Protocol Extensions for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths (81363 bytes)
MPLS Upstream Label Assignment for LDP (22896 bytes)
Point-to-Multipoint Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB) module (139295 bytes)
LDP Typed Wildcard FEC (19317 bytes)
Security Framework for MPLS and GMPLS Networks (149942 bytes)
Non PHP Behavior and out-of-band mapping for RSVP-TE LSPs (20148 bytes)
Mechanism for performing LSP-Ping over MPLS tunnels (43812 bytes)
Signaling LDP Label Advertisement Completion (20320 bytes)
A Framework for MPLS in Transport Networks (117850 bytes)
Requirements for OAM in MPLS Transport Networks (38677 bytes)
Requirements for Label Edge Router Forwarding of IPv4 Option Packets (22759 bytes)
MPLS TP Network Management Requirements (53636 bytes)
MPLS-TP OAM Framework (111711 bytes)
Multiprotocol Label Switching Transport Profile Survivability Framework (126199 bytes)
Definition of ACH TLV Structure (18221 bytes)
MPLS-TP Network Management Framework (40424 bytes)
A Thesaurus for the Terminology used in Multiprotocol Label Switching Transport Profile (MPLS-TP) drafts/RFCs and ITU-T's Transport Network Recommendations (35750 bytes)
IETF Multi-Protocol Label Switching (MPLS) Transport Profile (MPLS-TP) Document Process (52194 bytes)
MPLS-TP OAM Analysis (65076 bytes)
MPLS-TP Identifiers (30240 bytes)
LDP IGP Synchronization for broadcast networks (14485 bytes)
mLDP based in-band signaling for Point-to-Multipoint and Multipoint-to- Multipoint Label Switched Paths (22097 bytes)
MPLS Fault Management OAM (19587 bytes)
MPLS-TP Linear Protection (43304 bytes)
MPLS Transport Profile Data Plane Architecture (22079 bytes)

Request For Comments:

Requirements for Traffic Engineering Over MPLS (RFC 2702) (68386 bytes)
Multiprotocol Label Switching Architecture (RFC 3031) (147175 bytes)
MPLS Label Stack Encoding (RFC 3032) (48314 bytes) updated by RFC 3270,RFC 3443,RFC 4182,RFC 5129,RFC 5332,RFC 5462,RFC 5586
Use of Label Switching on Frame Relay Networks Specification (RFC 3034) (53176 bytes)
MPLS using LDP and ATM VC Switching (RFC 3035) (46463 bytes)
LDP Specification (RFC 3036) (274855 bytes) obsoleted by RFC 5036
LDP Applicability (RFC 3037) (13601 bytes)
VCID Notification over ATM link for LDP (RFC 3038) (39134 bytes)
The Assignment of the Information Field and Protocol Identifier in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet Protocol (RFC 3033) (52188 bytes)
MPLS Loop Prevention Mechanism (RFC 3063) (93523 bytes)
Carrying Label Information in BGP-4 (RFC 3107) (16442 bytes)
RSVP-TE: Extensions to RSVP for LSP Tunnels (RFC 3209) (132264 bytes) updated by RFC 3936,RFC 4420,RFC 4874,RFC 5151,RFC 5420,RFC 5711
Applicability Statement for Extensions to RSVP for LSP-Tunnels (RFC 3210) (17691 bytes)
Constraint-Based LSP Setup using LDP (RFC 3212) (87591 bytes) updated by RFC 3468
Applicability Statement for CR-LDP (RFC 3213) (14489 bytes) updated by RFC 3468
LSP Modification Using CR-LDP (RFC 3214) (25453 bytes)
LDP State Machine (RFC 3215) (117278 bytes)
MPLS Support of Differentiated Services (RFC 3270) (137960 bytes) updates RFC 3032/ updated by RFC 5462
Framework for IP Multicast in MPLS (RFC 3353) (65860 bytes)
Time to Live (TTL) Processing in MPLS Networks (Updates RFC 3032) (RFC 3443) (18749 bytes) updates RFC 3032/ updated by RFC 5462
Signalling Unnumbered Links in Resource ReSerVation Protocol - Traffic Engineering (RSVP-TE) (RFC 3477) (19899 bytes)
Framework for MPLS-based Recovery (RFC 3469) (89331 bytes) updated by RFC 5462
Graceful Restart Mechanism for Label Distribution Protocol (RFC 3478) (29248 bytes)
Fault Tolerance for the Label Distribution Protocol (LDP) (RFC 3479) (115778 bytes)
The MPLS Working Group decision on MPLS signaling protocols (RFC 3468) (22072 bytes) updates RFC 3213,RFC 3212,RFC 3472
Signalling Unnumbered Links in CR-LDP (Constraint-Routing Label Distribution Protocol) (RFC 3480) (17076 bytes)
Applicability Statement for Restart Mechanisms for the Label Distribution Protocol (LDP) (RFC 3612) (35677 bytes)
Definitions of Textual Conventions for Multiprotocol Label Switching (MPLS) Management (RFC 3811) (40353 bytes)
Multiprotocol Label Switching (MPLS) Traffic Engineering Management Information Base (RFC 3812) (136475 bytes)
Multiprotocol Label Switching (MPLS) Label Switching Router (LSR)Management Information Base (RFC 3813) (116120 bytes)
Multiprotocol Label Switching (MPLS) Forwarding Equivalence Class To Next Hop Label Forwarding Entry (FEC-To-NHLFE)Management Information Base (RFC 3814) (87518 bytes)
Definitions of Managed Objects for the Multiprotocol Label Switching, Label Distribution Protocol (LDP) (RFC 3815) (215916 bytes)
Maximum Transmission Unit Signalling Extensions for the Label Distribution Protocol (RFC 3988) (18841 bytes)
Encapsulating MPLS in IP or Generic Routing Encapsulation (GRE) (RFC 4023) (31696 bytes) updated by RFC 5332
Fast Reroute Extensions to RSVP-TE for LSP Tunnels (RFC 4090) (83965 bytes)
Removing a Restriction on the use of MPLS Explicit NULL (RFC 4182) (14087 bytes) updates RFC 3032/ updated by RFC 5462
Link Bundling in MPLS Traffic Engineering (RFC 4201) (27033 bytes) updates RFC 3471,RFC 3472,RFC 3473
Label Switched Paths (LSP) Hierarchy with Generalized Multi-Protocol Label Switching (GMPLS) Traffic Engineering (TE) (RFC 4206) (31965 bytes)
Multiprotocol Label Switching (MPLS) Management Overview (RFC 4221) (70291 bytes)
Traffic Engineering Link Management Information Base (RFC 4220) (104566 bytes)
Multiprotocol Label Switching (MPLS) Label-Controlled ATM and Frame-Relay Management Interface Definition (RFC 4368) (43315 bytes)
Operations and Management (OAM) Requirements for Multi-Protocol Label Switched (MPLS) Networks (RFC 4377) (31889 bytes)
A Framework for Multi-Protocol Label Switching (MPLS) Operations and Management (OAM) (RFC 4378) (23640 bytes)
Detecting Multi-Protocol Label Switched (MPLS) Data Plane Failures (RFC 4379) (116872 bytes) updates RFC 1122/ updated by RFC 5462
Encoding of Attributes for Multiprotocol Label Switching (MPLS) Label Switched Path (LSP) Establishment Using Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) (RFC 4420) (47235 bytes) obsoleted by RFC 5420/ updates RFC 3209,RFC 3473
Signaling Requirements for Point to Multipoint Traffic Engineered MPLS Label Switched Paths (LSPs) (RFC 4461) (64542 bytes)
Definition of a Record Route Object (RRO) Node-Id Sub-Object (RFC 4561) (19362 bytes)
Operations and Management (OAM) Requirements for Point-to-Multipoint MPLS Networks (RFC 4687) (30486 bytes)
Graceful Restart Mechanism for BGP with MPLS (RFC 4781) (23249 bytes)
Encapsulation of MPLS over Layer 2 Tunneling Protocol Version 3 (RFC 4817) (26538 bytes)
Codepoint Registry for The Flags Field in the Resource Reservation Protocol Traffic Engineering (RSVP-TE) Session Attribute Object (RFC 4859) (7511 bytes)
Extensions to Resource Reservation Protocol - Traffic Engineering (RSVP-TE) for Point-to-Multipoint TE Label Switched Paths (LSPs) (RFC 4875) (125394 bytes)
Avoiding Equal Cost Multipath Treatment in MPLS Networks (RFC 4928) (18376 bytes)
ICMP Extensions for MultiProtocol Label Switching (RFC 4950) (15091 bytes)
LDP Specification (RFC 5036) (287101 bytes) obsoletes RFC 3036
Experience with the Label Distribution Protocol (LDP) (RFC 5037) (13886 bytes)
The Label Distribution Protocol (LDP) Implementation Survey Results (RFC 5038) (46890 bytes)
LDP extension for Inter-Area Label Switched Paths (LSPs) (RFC 5283) (26534 bytes)
MPLS Upstream Label Assignment and Context-Specific Label Space (RFC 5331) (30779 bytes)
MPLS Multicast Encapsulations (RFC 5332) (22887 bytes) updates RFC 3032,RFC 4023
A Link-Type sub-TLV to Convey the Number of Traffic Engineering Label Switched Paths Signalled with Zero Reserved Bandwidth across a Link (RFC 5330) (15730 bytes)
An Analysis of Scaling Issues in MPLS-TE Core Networks (RFC 5439) (93845 bytes)
Multiprotocol Label Switching (MPLS) Label Stack Entry: (RFC 5462) (19372 bytes) updates RFC 4379,RFC 3443,RFC 3272,RFC 3270,RFC 3032,RFC 3564,RFC 3985,RFC 4182,RFC 4364,RFC 3469,RFC 4448,RFC 4761,RFC 5129
LDP IGP Synchronization (RFC 5443) (15475 bytes)
MPLS Generic Associated Channel (RFC 5586) (41482 bytes) updates RFC 3032,RFC 4385,RFC 5085
LDP Capabilities (RFC 5561) (27901 bytes)
Requirements of an MPLS Transport Profile (RFC 5654) (69999 bytes)
An Inband Data Communication Network For the MPLS Transport Profile (RFC 5718) (18997 bytes)
PathErr Message Triggered MPLS and GMPLS LSP Reroute (RFC 5710) (27233 bytes)
MPLS Traffic Engineering Soft Preemption (RFC 5712) (27371 bytes)
Node Behavior upon Originating and Receiving Resource Reservation Protocol (RSVP) Path Error Messages (RFC 5711) (12596 bytes) updates RFC 3209

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