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[babel] babeld-1.12.1 with draft-...-mac-relaxed

Juliusz Chroboczek <jch@irif.fr> Wed, 18 May 2022 21:18 UTC

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Date: Wed, 18 May 2022 23:18:32 +0200
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From: Juliusz Chroboczek <jch@irif.fr>
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Subject: [babel] babeld-1.12.1 with draft-...-mac-relaxed
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Dear all,

Since the algorithm proposed in Section 3.1 of draft-...-mac-relaxed does
not introduce any new on-the-wire formats, since it preserves forwards and
backwards compatibility with RFC 8967, and since it solves a problem that
some of our users are seeing in production, I've just released a version
of babeld that implements it.

Please find attached the announcement of babeld-1.12.1.

-- Juliusz
--- Begin Message --- 
Hi,

Babeld 1.12.1 is available from

  https://www.irif.fr/~jch/software/files/babeld-1.12.1.tar.gz
  https://www.irif.fr/~jch/software/files/babeld-1.12.1.tar.gz.asc

For more information about the Babel routing protocol, please see

  https://www.irif.fr/~jch/software/babel/

This version relaxes verification of packet counters to avoid MAC failures
on WiFi links that implement powersaving.  Many thanks to Daniel Gröber
for his precious help with identifying the problem.  The new algorithm
fully interoperates with the previous version, and remais just as safe.
It is described in Section 3.1 of

  https://datatracker.ietf.org/doc/html/draft-chroboczek-babel-mac-relaxed-00.html

18 May 2022: babeld-1.12.1

  * Implement separate PC values for unicast and multicast, which avoids
    dropping packets protected by MAC when WiFi powersave is active.
    Thanks to Daniel Gröber.
  * Schedule an interface check just after adding an interface.
    Thanks to Andrew Hoff.

-- Juliusz Chroboczek

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