Broadcom NIC supports jumbo frames?

[Greg Lindahl]

On Wed, Dec 18, 2002 at 01:00:11PM -0500, Jeff Layton wrote:

>    Just to be sure, if we are running jobs on this cluster, ALL of
> the nodes have to have a MTU of 9000 (I found that wasn't set
> correctly). Anything thing else I should check? (we're having
> MPI jobs fail after we switched all of the nodes to jumbo
> frames).

Try ping with an 8000 byte packet. If both sides don't agree on the
MTU, you'll see 100% lossage.

greg
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