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Multiprotocol Label Switching (mpls) (WG)

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

Chair(s): Loa Andersson George Swallow Ross Callon Secretary Martin Vigoureux Routing Area Area Director(s): Stewart Bryant Adrian Farrel Routing Area Advisor Adrian Farrel

Meeting Slides:

• MPLS WG Status
• draft-ietf-mpls-ldp-multi-topology-04
• draft-ietf-mpls-tp-ring-protection-02
• draft-chen-mpls-p2mp-X-protection-06
• draft-torvi-mpls-rsvp-ingress-protection-00
• draft-zjns-mpls-lsp-ping-relay-reply-00
• draft-xu-mpls-in-udp-02
• draft-weingarten-mpls-smp-requirements-00
• draft-lzj-mpls-receiver-driven-multicast-rsvp-te-01
• draft-zlj-mpls-mrsvp-te-frr-00
• draft-pdutta-mpls-multi-ldp-instance-00
• On draft-ietf-mpls-ldp-ipv6-07
• draft-tao-mpls-pim-interworking-00
• Issues with deep label stacks
• draft-fuxh-mpls-delay-loss-te-framework-05
• draft-li-mpls-ldp-mt-mib-03
• draft-hmk-mpls-tp-p2mp-oam-framework-00
• draft-fbb-mpls-tp-p2mp-framework-05

Blue Sheets:

• bluesheets-84-mpls-01.pdf
• bluesheets-84-mpls-02.pdf

Internet-Drafts:

• Configuration of Pro-Active Operations, Administration, and Maintenance (OAM) Functions for MPLS-based Transport Networks using LSP Ping (46764 bytes)
• Applicability of MPLS-TP Linear Protection for Ring Topologies (65233 bytes)
• MPLS-TP Next-Hop Ethernet Addressing (15380 bytes)
• MPLS Generic Associated Channel (G-ACh) Advertisement Protocol (43409 bytes)
• Updates to LDP for IPv6 (32195 bytes)
• Handling MPLS-TP OAM Packets Targeted at Internal MIPs (32044 bytes)
• Temporal and hitless path segment monitoring (36400 bytes)
• MPLS-TP Traffic Engineering (TE) Management Information Base (MIB) (90432 bytes)
• A Thesaurus for the Terminology used in Multiprotocol Label Switching Transport Profile (MPLS-TP) drafts/RFCs and ITU-T's Transport Network Recommendations. (33861 bytes)
• LDP Extensions for Multi Topology Routing (36327 bytes)
• LDP Hello Cryptographic Authentication (22192 bytes)
• Inter-Area P2MP Segmented LSPs (95716 bytes)
• LDP Downstream-on-Demand in Seamless MPLS (74871 bytes)
• Using LDP Multipoint Extensions on Targeted LDP Sessions (19278 bytes)
• MPLS-TP 1toN Protection (88880 bytes)
• Applicability of LDP Label Advertisement Mode (17472 bytes)
• MPLS-TP Security Framework (52290 bytes)
• MPLS-TP Applicability; Use Cases and Design (51442 bytes)
• Disabling IPoMPLS and P2P PW LDP Applications (27757 bytes)
• MPLS-TP Identifiers Following ITU-T Conventions (23645 bytes)
• Definition of Time-to-Live TLV for LSP-Ping Mechanisms (14683 bytes)
• Return Path Specified LSP Ping (48071 bytes)
• LDP Extensions for Hub & Spoke Multipoint Label Switched Path (26199 bytes)
• Multipoint LDP in-band signaling for Point-to-Multipoint and Multipoint- to-Multipoint Label Switched Paths (24893 bytes)
• The Use of Entropy Labels in MPLS Forwarding (51309 bytes)
• MPLS-TP Operations, Administration, and Management (OAM) Identifiers Management Information Base (MIB) (53631 bytes)
• Label Switched Path (LSP) Ping for IPv6 Pseudowire FECs (16647 bytes)

Request for Comments:

• Requirements for Traffic Engineering Over MPLS (RFC 2702) (68386 bytes)
• Multiprotocol Label Switching Architecture (RFC 3031) (147175 bytes) updated by RFC 6178
• Use of Label Switching on Frame Relay Networks Specification (RFC 3034) (53176 bytes)
• MPLS Label Stack Encoding (RFC 3032) (48314 bytes) updated by RFC 3443,RFC 4182,RFC 5332,RFC 3270,RFC 5129,RFC 5462,RFC 5586
• 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)
• VCID Notification over ATM link for LDP (RFC 3038) (39134 bytes)
• LDP Specification (RFC 3036) (274855 bytes) obsoleted by RFC 5036
• MPLS using LDP and ATM VC Switching (RFC 3035) (46463 bytes)
• LDP Applicability (RFC 3037) (13601 bytes)
• MPLS Loop Prevention Mechanism (RFC 3063) (93523 bytes)
• Carrying Label Information in BGP-4 (RFC 3107) (16442 bytes)
• Constraint-Based LSP Setup using LDP (RFC 3212) (87591 bytes) updated by RFC 3468
• 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)
• LDP State Machine (RFC 3215) (117278 bytes)
• Applicability Statement for CR-LDP (RFC 3213) (14489 bytes)
• LSP Modification Using CR-LDP (RFC 3214) (25453 bytes)
• Multi-Protocol Label Switching (MPLS) Support of Differentiated Services (RFC 3270) (137960 bytes) updates RFC3032updated by RFC 5462
• Overview of IP Multicast in a Multi-Protocol Label Switching (MPLS) Environment (RFC 3353) (65860 bytes)
• Time To Live (TTL) Processing in Multi-Protocol Label Switching (MPLS) Networks (RFC 3443) (18749 bytes) updates RFC3032updated by RFC 5462
• Framework for Multi-Protocol Label Switching (MPLS)-based Recovery (RFC 3469) (89331 bytes) updated by RFC 5462
• The Multiprotocol Label Switching (MPLS) Working Group decision on MPLS signaling protocols (RFC 3468) (22072 bytes) updates RFC3212,RFC3472,RFC3475,RFC3476
• Fault Tolerance for the Label Distribution Protocol (LDP) (RFC 3479) (115778 bytes)
• Signalling Unnumbered Links in CR-LDP (Constraint-Routing Label Distribution Protocol) (RFC 3480) (17076 bytes)
• Signalling Unnumbered Links in Resource ReSerVation Protocol - Traffic Engineering (RSVP-TE) (RFC 3477) (19899 bytes) updated by RFC 6107
• Graceful Restart Mechanism for Label Distribution Protocol (RFC 3478) (29248 bytes)
• Applicability Statement for Restart Mechanisms for the Label Distribution Protocol (LDP) (RFC 3612) (35677 bytes)
• Definitions of Managed Objects for the Multiprotocol Label Switching (MPLS), Label Distribution Protocol (LDP) (RFC 3815) (215916 bytes)
• Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB) (RFC 3812) (136475 bytes)
• Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB) (RFC 3813) (116120 bytes)
• Multiprotocol Label Switching (MPLS) Forwarding Equivalence Class To Next Hop Label Forwarding Entry (FEC-To-NHLFE) Management Information Base (MIB) (RFC 3814) (87518 bytes)
• Definitions of Textual Conventions (TCs) for Multiprotocol Label Switching (MPLS) Management (RFC 3811) (40353 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 RFC3032updated by RFC 5462
• Label Switched Paths (LSP) Hierarchy with Generalized Multi-Protocol Label Switching (GMPLS) Traffic Engineering (TE) (RFC 4206) (31965 bytes) updated by RFC 6001,RFC 6107
• Link Bundling in MPLS Traffic Engineering (TE) (RFC 4201) (27033 bytes) updates RFC3471,RFC3472,RFC3473
• Traffic Engineering Link Management Information Base (RFC 4220) (104566 bytes)
• Multiprotocol Label Switching (MPLS) Management Overview (RFC 4221) (70291 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 RFC1122updated by RFC 5462,RFC 6424,RFC 6425,RFC 6426
• Multiprotocol Label Switching (MPLS) Label-Controlled Asynchronous Transfer Mode (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)
• 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 RFC3209,RFC3473
• 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) updated by RFC 6510
• 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 rfc3036 updated by RFC 6720
• 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)
• 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)
• MPLS Multicast Encapsulations (RFC 5332) (22887 bytes) updates RFC3032,RFC4023
• MPLS Upstream Label Assignment and Context-Specific Label Space (RFC 5331) (30779 bytes)
• LDP IGP Synchronization (RFC 5443) (15475 bytes) updated by RFC 6138
• An Analysis of Scaling Issues in MPLS-TE Core Networks (RFC 5439) (93845 bytes)
• Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field (RFC 5462) (19372 bytes) updates RFC3032,RFC3270,RFC3272,RFC3443,RFC3469,RFC3564,RFC3985,RFC4182,RFC4364,RFC4379,RFC4448,RFC4761,RFC5129
• LDP Capabilities (RFC 5561) (27901 bytes)
• MPLS Generic Associated Channel (RFC 5586) (41482 bytes) updates RFC3032,RFC4385,RFC5085updated by RFC 6423
• Requirements of an MPLS Transport Profile (RFC 5654) (69999 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 RFC3209
• PathErr Message Triggered MPLS and GMPLS LSP Reroutes (RFC 5710) (27233 bytes)
• An In-Band Data Communication Network For the MPLS Transport Profile (RFC 5718) (18997 bytes)
• Requirements for Operations, Administration, and Maintenance (OAM) in MPLS Transport Networks (RFC 5860) (36951 bytes)
• Label Distribution Protocol (LDP) 'Typed Wildcard' Forward Equivalence Class (FEC) (RFC 5918) (19414 bytes)
• Signaling LDP Label Advertisement Completion (RFC 5919) (19455 bytes)
• Security Framework for MPLS and GMPLS Networks (RFC 5920) (152830 bytes)
• A Framework for MPLS in Transport Networks (RFC 5921) (129318 bytes) updated by RFC 6215
• Network Management Requirements for MPLS-based Transport Networks (RFC 5951) (49993 bytes)
• Network Management Framework for MPLS-based Transport Networks (RFC 5950) (39502 bytes)
• MPLS Transport Profile Data Plane Architecture (RFC 5960) (31764 bytes)
• LDP IGP Synchronization for Broadcast Networks (RFC 6138) (20161 bytes) updates RFC5443
• Label Edge Router Forwarding of IPv4 Option Packets (RFC 6178) (21645 bytes) updates RFC3031
• MPLS Transport Profile User-to-Network and Network-to-Network Interfaces (RFC 6215) (13619 bytes) updates RFC5921
• Requirements for Point-to-Multipoint Extensions to the Label Distribution Protocol (RFC 6348) (38902 bytes)
• MPLS Transport Profile (MPLS-TP) Survivability Framework (RFC 6372) (142437 bytes)
• Operations, Administration, and Maintenance Framework for MPLS-Based Transport Networks (RFC 6371) (142857 bytes) updated by RFC 6435
• MPLS Transport Profile (MPLS-TP) Identifiers (RFC 6370) (35294 bytes)
• A Packet Loss and Delay Measurement Profile for MPLS-Based Transport Networks (RFC 6375) (10026 bytes)
• Packet Loss and Delay Measurement for MPLS Networks (RFC 6374) (123462 bytes)
• Label Distribution Protocol Extensions for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths (RFC 6388) (86457 bytes)
• MPLS Upstream Label Assignment for LDP (RFC 6389) (30935 bytes)
• MPLS Transport Profile (MPLS-TP) Linear Protection (RFC 6378) (99684 bytes)
• Mechanism for Performing Label Switched Path Ping (LSP Ping) over MPLS Tunnels (RFC 6424) (48270 bytes) updates RFC4379
• MPLS Fault Management Operations, Administration, and Maintenance (OAM) (RFC 6427) (34069 bytes)
• Proactive Connectivity Verification, Continuity Check, and Remote Defect Indication for the MPLS Transport Profile (RFC 6428) (44293 bytes)
• MPLS On-Demand Connectivity Verification and Route Tracing (RFC 6426) (46539 bytes) updates RFC4379
• MPLS Transport Profile Lock Instruct and Loopback Functions (RFC 6435) (23862 bytes) updates RFC6371
• Multiprotocol Label Switching (MPLS) Traffic Engineering Management Information Base for Fast Reroute (RFC 6445) (101627 bytes)
• Non-Penultimate Hop Popping Behavior and Out-of-Band Mapping for RSVP-TE Label Switched Paths (RFC 6511) (21767 bytes)
• Using Multipoint LDP When the Backbone Has No Route to the Root (RFC 6512) (24352 bytes)
• Multiprotocol Label Switching Transport Profile (MPLS-TP) MIB-Based Management Overview (RFC 6639) (58669 bytes)
• An Overview of the Operations, Administration, and Maintenance (OAM) Toolset for MPLS-Based Transport Networks (RFC 6669) (46171 bytes)
• The Reasons for Selecting a Single Solution for MPLS Transport Profile (MPLS-TP) Operations, Administration, and Maintenance (OAM) (RFC 6670) (77266 bytes)
• Detecting Data-Plane Failures in Point-to-Multipoint MPLS - Extensions to LSP Ping (RFC 6425) (68437 bytes) updates RFC4379
• The Generalized TTL Security Mechanism (GTSM) for the Label Distribution Protocol (LDP) (RFC 6720) (17823 bytes) updates RFC5036

Charter (as of 1997-03-03):

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.

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