On Aug 12, 2009, at 12:37 PM, Roman Naumenko <no- [email protected]> wrote:

The problem with this big frames is that our win guys claim jambo are disabled on nics... They said it can support only 9014 bytes. Unfortunately, wireshark trace is just a garbage for Microsoft support, so we can't even ask them (and perfectly shows why people shouldn't stick to M$ products)

And this is how nic config looks there. maybe it is hidden somewhere else, it's hard to guess. Usually, all confs should be on driver properties page.

Maybe there was confusion between TCP packet size and Ethernet Frame is in the wireshark analysis?

You can easily have iSCSI TCP frames of 64K if MRDSL is set to 64K. These will of course span over multiple Ethernet frames. Wireshark will combine those Ethernet frames when looking at layer 3 traffic.

-Ross

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