RSVP-TE Extensions for Associated Bidirectional Label Switched Paths (LSPs) (RFC7551)
Original Publication Date: 2015-May-01
Included in the Prior Art Database: 2015-May-14
Internet Society Requests For Comment (RFCs)
F. Zhang: AUTHOR [+5]
The MPLS Transport Profile (MPLS-TP) requirements document [RFC5654] specifies that MPLS-TP MUST support associated bidirectional point- to-point Label Switched Paths (LSPs). These requirements are given in Section 2.1 ("General Requirements") of that document and are partially rephrased below:
Internet Engineering Task Force (IETF) F. Zhang, Ed. Request for Comments: 7551 Huawei Category: Standards Track R. Jing ISSN: 2070-1721 China Telecom R. Gandhi, Ed. Cisco Systems May 2015
RSVP-TE Extensions for Associated Bidirectional Label Switched Paths (LSPs)
This document describes Resource Reservation Protocol (RSVP) extensions to bind two point-to-point unidirectional Label Switched Paths (LSPs) into an associated bidirectional LSP. The association is achieved by defining new Association Types for use in ASSOCIATION and in Extended ASSOCIATION Objects. One of these types enables independent provisioning of the associated bidirectional LSPs on both sides, while the other enables single-sided provisioning. The REVERSE_LSP Object is also defined to enable a single endpoint to trigger creation of the reverse LSP and to specify parameters of the reverse LSP in the single-sided provisioning case.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7551.
al. Standards Track [Page 1]
RFC 7551 RSVP-TE Extensions for Associated LSP May 2015
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