Skip to main content

Signaling MSD (Maximum SID Depth) using OSPF

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Replaced".
Expired & archived
Authors Jeff Tantsura , Uma Chunduri
Last updated 2016-09-10 (Latest revision 2016-03-09)
Replaced by draft-ietf-ospf-segment-routing-msd, draft-ietf-ospf-segment-routing-msd, RFC 8476
RFC stream (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document proposes a way to expose Maximum SID Depth (MSD) supported by a node at node and/or link level by an OSPF 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 . Here the term OSPF means both OSPFv2 and OSPFv3.


Jeff Tantsura
Uma Chunduri

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