Thread (24 messages) flat view 24 messages, 5 authors, 2012-07-23

Re: [PATCH v6] sctp: Implement quick failover draft from tsvwg

From: "Neil Horman <nhorman@tuxdriver.com>" <nhorman@tuxdriver.com>
Date: 2012-07-22 19:18:24
Also in: linux-sctp

Thanks all!

David Miller [off-list ref] wrote:
From: Vlad Yasevich <redacted>
Date: Sun, 22 Jul 2012 14:18:12 -0400
quoted
Neil Horman [off-list ref] wrote:
quoted
I've seen several attempts recently made to do quick failover of sctp
transports
by reducing various retransmit timers and counters.  While its
possible
quoted
quoted
to
implement a faster failover on multihomed sctp associations, its not
particularly robust, in that it can lead to unneeded retransmits, as
well as
false connection failures due to intermittent latency on a network.

Instead, lets implement the new ietf quick failover draft found here:
http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05

This will let the sctp stack identify transports that have had a
small
quoted
quoted
number of
errors, and avoid using them quickly until their reliability can be
re-established.  I've tested this out on two virt guests connected
via
quoted
quoted
multiple
isolated virt networks and believe its in compliance with the above
draft and
works well.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
...
quoted
Acked-by: Vlad Yasevich <redacted>
Applied, thanks everyone.
-- 
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
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