Re: [net-next 1/1] tipc: extend link reset criteria for stale packet retransmission

[David Miller <davem@davemloft.net>]

From: Jon Maloy <jon.maloy@ericsson.com>
Date: Fri, 6 Jul 2018 15:22:36 +0200

> Currently a link is declared stale and reset if there has been 100
> repeated attempts to retransmit the same packet. However, in certain
> infrastructures we see that packet (NACK) duplicates and delays may
> cause such retransmit attempts to occur at a high rate, so that the
> peer doesn't have a reasonable chance to acknowledge the reception
> before the 100-limit is hit. This may take much less than the
> stipulated link tolerance time, and despite that probe/probe replies
> otherwise go through as normal.
> 
> We now extend the criteria for link reset to also being time based.
> I.e., we don't reset the link until the link tolerance time is passed
> AND we have made 100 retransmissions attempts.
> 
> Acked-by: Ying Xue <ying.xue@windriver.com>
> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>

Applied, thanks Jon.

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