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IS-IS Extensions for Path MTU

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Zhibo Hu, Yongqing Zhu , Zhenbin Li , Longfei Dai
Last updated 2019-01-01 (Latest revision 2018-06-30)
RFC stream (None)
Intended RFC status (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This Internet-Draft is no longer active.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:


Segment routing (SR) leverages the source routing mechanism. It allows for a flexible definition of end-to-end paths with IGP topologies by encoding paths as sequences of topological sub-paths which is called segments. These segments are advertised by the link- state routing protocols (IS-IS and OSPF). Unlike the MPLS, SR does not have the specific path construction signaling so that it cannot support the Path MTU. This draft provides the necessary IS-IS extensions about the Path MTU that need to be used on SR.


Zhibo Hu
Yongqing Zhu
Zhenbin Li
Longfei Dai

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