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