[Beowulf] Jumbo frame cards and switches

Sean Dilda agrajag at dragaera.net
Mon Mar 28 10:03:25 EST 2005

Art Edwards wrote:
> I have spent some time looking at posts on Gb cards and Gb switches for jumbo
> frames. We currently have broadcom GB BCM7501 cards and the catalyst
> 4000 switch. I am able to set mtu to 9000 on the cards, but I have found
> out that the switch does not handle jumbo frames. My questions are:
> 1. If I can set the mtu to 9000, does this mean the card can actully
> send and receive messages this size?

Being able to set the mtu to 9000 means that the driver for the card 
thinks it can do it.

If it makes you feel any better, I've been using jumbo frame on 
BCM5704's for a while now.
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