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Interesting BFD discussion on reddit
- Subject: Interesting BFD discussion on reddit
- From: glen.kent at gmail.com (Glen Kent)
- Date: Mon, 16 Feb 2015 08:55:17 +0530
- In-reply-to: <[email protected]>
- References: <CAARSoVzjf9n_2sYmuOMVRzx=Q7kAWXjgyGRC2PmkgwU-Nt_B=w@mail.gmail.com> <[email protected]>
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> I wonder if Trio, EZChip and friends could do SHA in NPU, my guess is yes
> they
> could, but perhaps there is even more appropriate hash for this use-case.
> I'm not entirely convinced doing hash for each BFD packet is impractical.
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> [0] http://www.ietf.org/id/draft-mahesh-bfd-authentication-00.txt
You might want to take a look at:
http://www.ietf.org/proceedings/89/slides/slides-89-mpls-9.pdf
Look at the slides 11 onwards.
Doing HMAC calculation for each packet adversely affects the number of
concurrent sessions that can be supported.
Glen.
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> --
> ++ytti
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