On 3/31/09, Richard A Steenbergen <[email protected]> wrote: > On Tue, Mar 31, 2009 at 10:01:24AM +0200, Gergely Antal wrote: > >> I meant that you can not push 40G out of a 6704 >> even with a dfc attached to it.But you can do it with a 6708 >> with 1:1 subscription. > > Worse, some days you can't even get 7G in from a single port on a 6704 > with the other 3 ports unused. We routinely have problems with ingress > interface overruns or egress interface output queue overflows on 6704 > in that traffic range, and DFC doesn't make any difference. > > It seems like it is head of line blocking, and TAC's only answer is > "those things have no buffers, buy a 6708".
We had a TAC case for input queue drops on a 6704 port - they told us it's a hardware limitation. When traffic is switched between two ports leading to the same asic you're limited to about 8Gb per port. Regards, Lee _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
