1. Multipoint LDP (mLDP) Node Protection
Publication: IETF RFC
Publication History: 2016-01
Publication URL: https://tools.ietf.org/html/rfc7715
Description:
This document describes procedures to support node protection for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths (P2MP and MP2MP LSPs) that have been built by the Multipoint Label Distribution Protocol (mLDP). In order to protect a node N, the Point of Local Repair (PLR) Label Switching Router (LSR) of N must learn the Merge Point (MPT) LSR(s) of node N such that traffic can be redirected to them in case node N fails. Redirecting the traffic around the failed node N depends on existing Point-to-Point (P2P) Label Switched Paths (LSPs). The pre-established LSPs originate from the PLR LSR and terminate on the MPT LSRs while bypassing LSR N.
2. Extensions to RSVP-TE for LSP Egress Local Protection
Publication: IETF RFC
Publication History: 2018-06
Publication URL: https://tools.ietf.org/html/rfc8400
Description:
This document describes extensions to Resource Reservation Protocol - Traffic Engineering (RSVP-TE) for locally protecting the egress node(s) of a Point-to-Point (P2P) or Point-to-Multipoint (P2MP) Traffic Engineered (TE) Label Switched Path (LSP).
3. Extensions to RSVP-TE for Label Switched Path (LSP) Ingress Fast Reroute (FRR) Protection
Publication: IETF RFC
Publication History: 2018-08
Publication URL: https://tools.ietf.org/html/rfc8424
Description:
This document describes extensions to Resource Reservation Protocol - Traffic Engineering (RSVP-TE) for locally protecting the ingress node of a Point-to-Point (P2P) or Point-to-Multipoint (P2MP) Traffic Engineered (TE) Label Switched Path (LSP). It extends the Fast Reroute (FRR) protection for transit nodes of an LSP to the ingress node of the LSP. The procedures described in this document are experimental.
4. Alternative Constraints for Point-to-Multipoint Traffic-Engineered MPLS Label Switched Path(LSP)
Publication: IETF Individual Draft
Publication History: 2013-10-14
Publication URL: https://tools.ietf.org/html/draft-li-mpls-p2mp-te-alt-path-01
Description:
The document proposes a solution to be able to set up the alternative path for specific leaf nodes of a P2MP TE LSP. Corresponding RSVP-TE protocol extension is also defined. The solution is used to cope with the issue that in some scenarios traffic loss happens even if there exists possible path for the leaf nodes.