Question about jumbo frames on a bunch of 3750s we have. I understand that if we want to enable 9000 byte jumbo frames, we need to make sure all 100Mb and 10Mb devices need to be removed from the switches.
What I don't quite understand is: Do we need to actually remove all the 10/100 devices from all the physical switches that are uplinked to each other, or just remove the 10/100 devices on the *vlan* we want to enable jumbo frames on?
i.e. if we have 10 switches, and one of those switches has 2 vlans on (vlan 1 and vlan 2), and the other 9 switches just have vlan 1, would a 10/100 device on vlan 2 mess it up for the rest of the vlan 1 switches?
To rephrase: Do ALL switches on one side of the router need to use jumbo frames, or just certain VLANs?
Thanks for any insight!