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Tunnel Segment in Segment Routing

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Zhenbin Li , Cheng Li , Nan Wu
Last updated 2021-10-16 (Latest revision 2021-04-14)
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)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document introduces a new type of segment, Tunnel Segment, for the segment routing (SR). Tunnel segment can be used to reduce SID stack depth of SR path, span the non-SR domain or provide differentiated services. Forwarding mechanisms and requirements of control plane and data models for tunnel segments are also defined.


Zhenbin Li
Cheng Li
Nan Wu

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