I actually don't know if the linecard has a DFC. It's an old 6509 and keeping any hardware information straight on this proves to be confusing to me. This is what I have. L3 Switching Engine II WS-F6K-PFC2
1000BaseX Supervisor WS-X6K-SUP2-2GE Multilayer Switch Feature WS-F6K-MSFC2 Switch Fabric Module WS-C6500-SFM When you say "some difference," are we talking significant differences here? This is basically the singular router for the entire organization (3000+ computers) so EVERYTHING flows through it. If the difference might be 2 or 3 times faster, then its worth it. But if the difference is marginal or a few meg per second, then its kind of irrelevant. Thanks, Jason On 6/22/09 11:40 AM, "Phil Mayers" <[email protected]> wrote: > > So the question is, is there a difference? I have hundreds of GB's > to backup so if there is a performance difference one way or the > other, I would want to know. The only thing I can see as a > difference is if I trunk the iSCSI vlan, then the traffic never hits > the 6509's routing module. Maybe that helps performance? > If I've understood you correctly, then there's no difference - the 6500 will forward 1gig layer2 just as quick as 1gig layer3. There are some possible differences if the linecard does not have a DFC, or is a bus-linecard and the bus is contended; it would depend on what other traffic was flowing through the box. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
