Name:
IETF RFC 9545 PDF
Published Date:
02/01/2024
Status:
[ Active ]
Publisher:
Internet Engineering Task Force
A Segment Routing (SR) path is identified by an SR segment list. A subset of segments from the segment list cannot be leveraged to distinguish one SR path from another as they may be partially congruent. SR path identification is a prerequisite for various use cases such as performance measurement and end-to-end 1+1 path protection.
In an SR over MPLS (SR-MPLS) data plane, an egress node cannot determine on which SR path a packet traversed the network from the label stack because the segment identifiers are removed from the label stack as the packet transits the network.
This document defines a Path Segment Identifier (PSID) to identify an SR path on the egress node of the path.
| Edition : | 24# |
| File Size : | 1 file , 160 KB |
| Number of Pages : | 11 |
| Published : | 02/01/2024 |
