RFC8287 Sub-TLV Length Clarification

Document Type Replaced Internet-Draft (mpls WG)
Authors Nagendra Nainar  , Carlos Pignataro  , Faisal Iqbal  , Sasha Vainshtein 
Last updated 2019-03-10 (latest revision 2019-01-17)
Replaces draft-nainar-mpls-rfc8287-errata
Replaced by RFC 8690
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd Loa Andersson
IESG IESG state Replaced by draft-ietf-mpls-rfc8287-len-clarification
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to zali@cisco.com, Loa Andersson <loa@pi.nu>

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


RFC8287 defines the extensions to MPLS LSP Ping and Traceroute for Segment Routing IGP-Prefix and IGP-Adjacency Segment Identifier (SIDs) with an MPLS data plane. RFC8287 proposes 3 Target FEC Stack Sub-TLVs. While the standard defines the format and procedure to handle those Sub-TLVs, it does not sufficiently clarify how the length of the Segment ID Sub-TLVs should be computed to include in the Length field of the Sub-TLVs which may result in interoperability issues. This document updates RFC8287 by clarifying the length of each Segment ID Sub-TLVs defined in RFC8287.


Nagendra Nainar (naikumar@cisco.com)
Carlos Pignataro (cpignata@cisco.com)
Faisal Iqbal (faisal.iqbal@msn.com)
Sasha Vainshtein (vainshtein.alex@gmail.com)

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