On Fri, Apr 25, 2014 at 09:28:40AM -0400, Karl Heiss wrote:
> Don't transition to the PF state on every strike after 'Path.Max.Retrans'.
> Per draft-ietf-tsvwg-sctp-failover-03 Section 5.1.6:
>
> Additional (PMR - PFMR) consecutive timeouts on a PF destination
> confirm the path failure, upon which the destination transitions to the
> Inactive state. As described in [RFC4960], the sender (i) SHOULD notify
> ULP about this state transition, and (ii) transmit heartbeats to the
> Inactive destination at a lower frequency as described in Section 8.3 of
> [RFC4960].
>
> This also prevents sending SCTP_ADDR_UNREACHABLE to the user as the state
> bounces between SCTP_INACTIVE and SCTP_PF for each subsequent strike.
>
> Signed-off-by: Karl Heiss <kheiss@xxxxxxxxx>
> ---
> net/sctp/sm_sideeffect.c | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
> index 5d6883f..07f26fe 100644
> --- a/net/sctp/sm_sideeffect.c
> +++ b/net/sctp/sm_sideeffect.c
> @@ -502,7 +502,8 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
> if ((transport->state != SCTP_PF) &&
> (transport->state != SCTP_UNCONFIRMED) &&
> (asoc->pf_retrans < transport->pathmaxrxt) &&
> - (transport->error_count > asoc->pf_retrans)) {
> + (transport->error_count > asoc->pf_retrans) &&
> + (transport->error_count <= transport->pathmaxrxt)) {
>
> sctp_assoc_control_transport(asoc, transport,
> SCTP_TRANSPORT_PF,
> --
> 1.7.1
>
>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
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