If a Jumbo frame is enabled on a Cluster interface, the backplane interface should be large enough to support the all packets in the Jumbo frame. This is achieved by setting the Maximum Transmission Unit (MTU) of the backplane as:
Backplane_MTU = maximum (all cluster interface MTU’s) + 78
To verify the above configuration, you must send a jumbo probe (of the above computational size) to all peer nodes of a Cluster setup. If the probe does not succeed, the appliance displays a warning message in the output of the “show cluster instance” command.
In the command interface mode, type the following command: