We have a Dell M1000e enclosure with (4) Cisco 3130G switch blades installed.
For the (2) switch blades that are to connect to the iSCSI arrays we have set the system MTU to 9000 bytes, and assign each of the Gigabit Ethernet ports to a VLAN of 100.
When we attempt to set up a port-channel to aggregate the bandwidth, the port-channel fails to setup. When we checked the causeof the failure. It seems that the port-channel mtu remains at a MTU of 1500 bytes.
Does anyone have an idea of how to correct this?