The MPLS working group is responsible for standardizing technology for label switching and for the implementation of label-switched paths over packet based link-level technologies. The working group's responsibilities include procedures and protocols for the distribution of labels between Label Switching Routers (LSRs), MPLS packet encapsulation, and for Operation, Administration, and Maintenance (OAM) (including the necessary management objects expressed as MIB modules or using other techniques). The current WG focus areas and work items are: - Maintain existing MPLS requirements, mechanisms, and protocols, as currently documented in RFCs, in coordination with other working groups that work in overlapping areas e.g., CCAMP, PWE3, and OPSAWG working groups. - Evolve key MPLS protocols, including LDP, tLDP, mLDP, RSVP-TE and LSP Ping to meet new requirements. - Define an overall OAM framework for topology-driven, traffic engineered, and transport profile MPLS applications. - Determine MPLS-specific aspects of traffic engineering for multi-areas/multi-AS in cooperation with the CCAMP WG - Define necessary extensions for MPLS key protocols for dual-stack and IPv6 only networks - Coordinate with the CCAMP working group on the extensions of MPLS and GMPLS protocols - Document current implementation practices for MPLS load sharing. - Document mechanisms for securing MPLS networks in coordination with the KARP working group. - Document mechanisms for adding multi-topology support to existing MPLS protocols. - Document use cases for MPLS protocols.