Subject: PPR for TI-LFA

From: Michael Menth <[email-masked]>
Date: Wed, 10 Nov 2021 22:35:56 +0100

Hi Stewart,

I saw your presentation on PPR today. I understood PPR is similar to a 
multipoint-to-point tunnel. You mentioned TI-LFA as a use case where PPR 
may serve as substitute for SRv6-based TI-LFAs with per-link segments 
(my understanding) which is more expensive in terms of header overhead.

That use case may be similar to the eLFA that we have investigated in
https://atlas.informatik.uni-tuebingen.de/~menth/papers/Menth21e.pdf

If so, the quantitative findings (Fig 4a/b and 5) should also hold for 
the use case you mentioned.

Kind regards

Michael

-- 
Prof. Dr. habil. Michael Menth
University of Tuebingen
Faculty of Science
Department of Computer Science
Chair of Communication Networks
Sand 13, 72076 Tuebingen, Germany
phone: (+49)-7071/29-70505
fax: (+49)-7071/29-5220
mailto:[email-masked]
http://kn.inf.uni-tuebingen.de