On 28 Jun 2004, Evgeni Vachkov wrote: > > > patch? ...Or perhaps it is some other problem with other parts of the > > > kernel? > > It seems to me that you have applied the tcp window tracking patch from pom-ng. > > The problem is that the client and the server have done the first step of the > > three way handshake, and are in sync, but the firewall for some reason is not. > > So it drops the SYN/ACK, and thus forcing the client to retransmit its SYN and > > initiate a new session (as descibed in the source code of the patch) > > > > My advice is if you have applied this patch, to remove it, and test the load on the > > firewall again. > > As far as I can figure out we are running with > patch-o-matic-ng-20040302. I can see that the latest is > patch-o-matic-ng-20040621. Is this problem present at the version we are > running and is the new version still having the window tracking issues? SACK support was added to the patch in patch-o-matic-ng-20040621 with some minor fixes, compared to patch-o-matic-ng-20040302. It does not hurt to upgrade but I don't expect that it'd behave differently in your test. Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlec@xxxxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : KFKI Research Institute for Particle and Nuclear Physics H-1525 Budapest 114, POB. 49, Hungary