Signaling Maximum SID Depth (MSD) Using IS-IS, November 2018
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- PROPOSED STANDARD
- J. Tantsura
- lsr (rtg)
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This document defines a way for an Intermediate System to Intermediate System (IS-IS) router to advertise multiple types of supported Maximum SID Depths (MSDs) at node and/or link granularity. Such advertisements allow entities (e.g., centralized controllers) to determine whether a particular Segment ID (SID) stack can be supported in a given network. This document only defines one type of MSD: Base MPLS Imposition. However, it defines an encoding that can support other MSD types. This document focuses on MSD use in a network that is Segment Routing (SR) enabled, but MSD may also be useful when SR is not enabled.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.