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

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

From: David Miller <davem@davemloft.net>
Date: 2012-07-22 19:14:10
Also in: linux-sctp

From: Vlad Yasevich <redacted>
Date: Sun, 22 Jul 2012 14:18:12 -0400
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
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
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
multiple
isolated virt networks and believe its in compliance with the above
draft and
works well.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
 ...
Acked-by: Vlad Yasevich <redacted>
Applied, thanks everyone.
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help