Advertising Encapsulation Capability Using IS-IS

The information below is for an old version of the document
Document Type Expired Internet-Draft (individual)
Last updated 2015-02-13 (latest revision 2014-08-12)
Replaced by draft-ietf-isis-encapsulation-cap
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


In a particular network environment where MPLS-SPRING-enabled routers are partially deployed, it needs to transport MPLS traffic through an IP-based tunnel between two MPLS-SPRING-enabled routers so as to traverse non-MPLS routers. The ingress of the IP-based tunnel must know which encapsulation type is supported by the egress of that IP- based tunnel.This document describes how to advertise the encapsulation capability of MPLS-SPRING-enabled routers using IS-IS. Note that this encapsulation capablity advertisment could be applicalbe to other use cases besides that as mentioned above as well.


Xiaohu Xu (
Robert Raszuk (
Uma Chunduri (
Victor Lopezalvarez (

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