When T3-rtx has expired on multi-homed endpoints, the outstanding
DATA chunks may be retransmited to different path, if there are new
outstanding DATA chunks can be transmit. Such as the following:
Endpoint (IP=X,Y) Endpoint (IP=M,N)
<--- Send (Size=480)
<-------------- DATA1 (SRC=M)
<--- Send (Size=480)
(DATA2 not send with Nagle Algo)
...T3-rtx expired...
<-------------- DATA1 (SRC=N)
<-------------- DATA2 (SRC=M)
DATA1 and DATA2 should be sent bundled with SRC=N. So this patch
fixed it.
Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>
---
net/sctp/outqueue.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index d765fc5..4109db8 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -960,7 +960,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
new_transport = asoc->peer.active_path;
/* Change packets if necessary. */
- if (new_transport != transport) {
+ if (new_transport != transport && !rtx_timeout) {
transport = new_transport;
/* Schedule to have this transport's
--
1.6.2.2
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