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linux-next/include/net/sctp
Neil Horman 5aa93bcf66 sctp: Implement quick failover draft from tsvwg
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>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: Sridhar Samudrala <sri@us.ibm.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: linux-sctp@vger.kernel.org
CC: joe@perches.com
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-22 12:13:46 -07:00
..
auth.h [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
checksum.h sctp: Clean up sctp checksumming code 2009-02-16 00:03:10 -08:00
command.h sctp: deal with multiple COOKIE_ECHO chunks 2011-09-16 17:17:22 -04:00
constants.h sctp: Implement quick failover draft from tsvwg 2012-07-22 12:13:46 -07:00
sctp.h sctp: Adjust PMTU updates to accomodate route invalidation. 2012-07-16 03:57:14 -07:00
sm.h sctp: implement event notification SCTP_SENDER_DRY_EVENT 2011-04-21 10:35:44 -07:00
structs.h sctp: Implement quick failover draft from tsvwg 2012-07-22 12:13:46 -07:00
tsnmap.h sctp: be more restrictive in transport selection on bundled sacks 2012-06-30 22:44:35 -07:00
ulpevent.h sctp: ABORT if receive, reassmbly, or reodering queue is not empty while closing socket 2011-07-08 09:53:08 -07:00
ulpqueue.h [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
user.h sctp: Implement quick failover draft from tsvwg 2012-07-22 12:13:46 -07:00