Hi, I have observed a problem while doing load testing on SCTP. The tested equipment is an open suse linux box with 2.6.34 kernel. The application of the equipment will send/receive messages through linux kernel sctp. The peer is an equipment using Aricent sctp stack. During the load testing, the peer equipment drops sctp chunks and reports gaps through SACK to the tested equipment. The tested equipment (Linux box) retransmitts the missing chunks. But it always retransmit the same #TSN only once even it receives more SACKs with the reporting gap. >From the ethereal captures: - TSN 2254147468 is not received by the peer equipment, so it reports the gap by SACK. - Linux box retransmit TSN 2254147468. - The peer still does not get it. It reports the gap by SACK again and again. - Linux box never retransmit the missing chunk again. - Finally, neither linux box nor the peer can send/receive any more chunks. Could someone help to look at the problem? Any help would be highly appreciated! -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
