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Signaling MSD (Maximum SID Depth) using IS-IS

Document Type Replaced Internet-Draft (isis WG)
Authors Jeff Tantsura , Uma Chunduri
Last updated 2016-11-14 (Latest revision 2016-09-26)
Replaced by RFC 8491
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state Adopted by a WG
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-isis-segment-routing-msd
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)
This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:


This document proposes a way to expose Maximum SID Depth (MSD) supported by a node at node and/or link level by an ISIS Router. In a Segment Routing (SR) enabled network a centralized controller that programs SR tunnels at the head-end node needs to know the MSD information at node level and/or link level to push the label stack of an appropriate depth.


Jeff Tantsura
Uma Chunduri

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)