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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: PMTU-D: remember, your load balancer is broken
This can be done on FE interfaces too. Running Cisco FE interfaces back-to-back at 4470 seems to work. I wanted to say that the GE interface below doesn't work with large frames with a certain other vendor's hardware the couple of times we've tried it, and that the default was in fact 1500 for probably that reason. One-off solutions tend to be more trouble than they are worth in big networks. Deepak Jain AiNET On Wed, 14 Jun 2000 [email protected] wrote: > > : > : Then again, at least some Cisco gear doesn't think that. > : > : perdition>sh in g0/1 > : GigabitEthernet0/1 is up, line protocol is up > : Hardware is Gigabit Ethernet, address is 00d0.7966.eeae (bia 00d0.7966.eeae) > : MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, rely 255/255, load 24/255 > > the last i checked, 1500 was the default. given the right hw & sw, > MTU can be adjusted upward. i seem to remember seeing it demonstrated > on 12000 gear. > > there is a draft [draft-kaplan-isis-ext-eth-02.txt] that discusses > some extensions useful to support large frames. these extensions- again, > the last i checked- were supported by cisco, and other vendors. > > as always, contact your authorized support rep when in doubt. > > ymmv, > > _k > >
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