A new Request for Comments is now available in online RFC libraries.
RFC 9885
Title: Multi-Part TLVs in IS-IS
Author: P. Kaneriya,
T. Li,
A. Przygienda,
S. Hegde,
L. Ginsberg
Status: Standards Track
Stream: IETF
Date: October 2025
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 26
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-lsr-multi-tlv-19.txt
URL: https://www.rfc-editor.org/info/rfc9885
DOI: 10.17487/RFC9885
New technologies are adding new information into IS-IS while
deployment scales are simultaneously increasing. This causes the
contents of many critical TLVs to exceed the currently supported
limit of 255 octets. This document codifies the common mechanism of
extending the TLV content space through multiple TLVs.
This document is a product of the Link State Routing Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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