We have six 2960 48 port switches in our stack. We just added a pair of 3560 48 port switches to run iSCSI over. These two switches are uplinked to our 2960 switches via the GB ports.
One of my techs wants to enable jumbo frames on both the 3560 units to increase the iSCSI performance. My fear is the larger frames won't play nice with the 2960 switches along with all the 10/100 devices on my network.
Are my concerns valid or will the switches negotiate and operate correctly?