I datacenter has 2 3750s in a stack configuation. We recently purchased a SAN. I would like to use jumbo frames as the documentation for the SAN recommends. From the 3750 stack we have fiber running to our wiring closets and remote sites.
My question is, since jumbo frames are configured globally on gig interfaces, what happens when it travels over one of these fiber connections to a switch that doesn't support jumbo frames? Does the 3750 fragment the frame? Does the remote switch fragment the frame?
From what i understand and the way i have our SAN configured, the SAN should be totally seperate from your LAN for security and performance reasons. Our servers have two networks configured on them one for the LAN and one for the backside SAN. Those NIC's are connected to a stack of 3750's with Jumbos, and also we have our iSCSI array attached to them. The SAN is a totally seperate network from the LAN. I would consider reworking your SAN topology.
I believe my SAN topology is acceptable according to all the documentation I have. The SAN data network is in its own VLAN separate from our current production network. The SAN Vlan is pruned to the current switch stack to prevent any excessive/unnecessary broadcast traffic.
Ok, i was wondering because you said traffic could flow over your fiber links to a different switch. I thought you were implying that those were normal LAN switches and not switches you use for your SAN.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...