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[SCTP]: Fix 'fast retransmit' to send a TSN only once.

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SCTP used to "fast retransmit" a TSN every time we hit the number
of missing reports for the TSN.  However the Implementers Guide
specifies that we should only "fast retransmit" a given TSN once.
Subsequent retransmits should be timeouts only. Also change the
number of missing reports to 3 as per the latest IG(similar to TCP).

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich
2006-02-02 16:57:31 -08:00
committed by David S. Miller
parent 4641e7a334
commit 27852c26ba
3 changed files with 9 additions and 7 deletions
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2
include/net/sctp/structs.h
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@ -700,7 +700,7 @@ struct sctp_chunk {
__u8 ecn_ce_done; /* Have we processed the ECN CE bit? */
__u8 pdiscard; /* Discard the whole packet now? */
__u8 tsn_gap_acked; /* Is this chunk acked by a GAP ACK? */
__u8 fast_retransmit; /* Is this chunk fast retransmitted? */
__s8 fast_retransmit; /* Is this chunk fast retransmitted? */
__u8 tsn_missing_report; /* Data chunk missing counter. */
};