Segment Routing MPLS Interworking with LDP, December 2019
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- PROPOSED STANDARD
- A. Bashandy, Ed.
C. Filsfils, Ed.
- spring (rtg)
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A Segment Routing (SR) node steers a packet through a controlled set of instructions, called segments, by prepending the packet with an SR header. A segment can represent any instruction, topological or service based. SR allows enforcing a flow through any topological path while maintaining per-flow state only at the ingress node to the SR domain.
The Segment Routing architecture can be directly applied to the MPLS data plane with no change in the forwarding plane. This document describes how Segment Routing MPLS operates in a network where LDP is deployed and in the case where SR-capable and non-SR-capable nodes coexist.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.