Technical Summary
TRILL routing can be extended to support multiple levels by building
on the multilevel feature of IS-IS routing. Depending on how
nicknames are managed, there are two primary alternatives to realize
TRILL multilevel: the unique nickname approach and the aggregated
nickname approach as discussed in [MultiL]. This document specifies a
unique nickname approach. This approach gives unique nicknames to all
TRILL switches across the multilevel TRILL campus.
Working Group Summary
Consensus strong on this methodology.
A word on TRILL WG:
TRILL working worked on the multi-level, multiple topology work
item together over the last 3+ years. The WG operates with
high discussion level at IETFs for these new features, and
individuals working hard on drafts between time.
During the last 12 months, early drafts in the
multi-level, multiple topology (E.g. RFC8243)
have been approved.
Document Quality
Huawei and IPInfusion have TRILL implementations,
Scaling work was engaged in to aid long-term growth.
No implementations of this draft have been done.
On responses about known IPR by authors, Honjun Zhai did reply
on Feb 9 and Donald forwarded Dongxin Liu's email reply to the
trill mailing list on Feb 20.
Personnel
Document Shepherd: Susan Hares
AD: Alia Atlas