RFC 8243 on Alternatives for Multilevel Transparent Interconnection of Lots of Links (TRILL)
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Subject: RFC 8243 on Alternatives for Multilevel Transparent Interconnection of Lots of Links (TRILL)
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A new Request for Comments is now available in online RFC libraries.
RFC 8243
Title: Alternatives for Multilevel Transparent Interconnection
of Lots of Links (TRILL)
Author: R. Perlman,
D. Eastlake 3rd,
M. Zhang,
A. Ghanwani,
H. Zhai
Status: Informational
Stream: IETF
Date: September 2017
Mailbox: radia@alum.mit.edu,
d3e3e3@gmail.com,
zhangmingui@huawei.com,
anoop@alumni.duke.edu,
honjun.zhai@tom.com
Pages: 29
Characters: 66920
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-trill-rbridge-multilevel-07.txt
URL: https://www.rfc-editor.org/info/rfc8243
DOI: 10.17487/RFC8243
Although TRILL is based on IS-IS, which supports multilevel unicast
routing, extending TRILL to multiple levels has challenges that are
not addressed by the already-existing capabilities of IS-IS. One
issue is with the handling of multi-destination packet distribution
trees. Other issues are with TRILL switch nicknames. How are such
nicknames allocated across a multilevel TRILL network? Do nicknames
need to be unique across an entire multilevel TRILL network? Or can
they merely be unique within each multilevel area?
This informational document enumerates and examines alternatives
based on a number of factors including backward compatibility,
simplicity, and scalability; it makes recommendations in some cases.
This document is a product of the Transparent Interconnection of Lots of Links Working Group of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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