> > On Tue, 7 Feb 2012 08:32:21 -0500, Ann Kwok wrote > > Hello > > > > Thank you for your help > > > > But we can't increase the pipe as we are using 10G switch. > > > > The congestion happens when the traffic is using 7G > > If you cannot increase bandwidth, then you must increase the TX queue > (in QOS and/or port buffer). > > ~Randy >
Or the congestion could be further upstream or the flows might be high latency TCP and are being throttled because of the network latency. There could be any number of issues.

