Usage of Non Shortest Path Forwarding (NSPF) IDs in IS-IS

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Last updated 2018-09-24 (latest revision 2018-03-23)
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This document specifies the advertisement of Non Shortest Path Forwarding IDentifier (NSPF ID) TLV and the computation procedures for the same in IS-IS protocol. NSPF ID allows to simplify the data plane path description of data traffic in SR deployments. This helps mitigate the MTU issues that are caused by additional SR overhead of the packet and allows traffic statistics.


Uma Chunduri (
Jeff Tantsura (
Yingzhen Qu (

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