> Hmm. I'm more familiar with the sup720/PFC3 hardware than the earlier stuff. Sup2/MSFC2 is same switching paths as 720, only major difference is the common lack of a switch fabric. > What IOS version are you running? Can you "show mod"? > > Are the servers & backup kit on the same linecard? If the linecard lacks a > DFC, > then it's possible having them on the same VLAN would buy you local layer2 > switching, versus a (potentially contended) layer3 lookup on the PFC/sup. What local lookup are you expecting to occur on a non-DFC linecard? Unless I'm missing something, you're looking at the exact same switching path for L2 or L3. In terms of forwarding performance, the only major difference would be an extreme edge case on overburdened hardware such saving a double-lookup for IPv6 by reverting to a single lookup for L2. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
