This procedure is for the CLI.
For example, change the MTU value for the LLL public network by specifying a number between 1500 and 9194. The MTU value controls the maximum size of packet that is transmitted without fragmentation. The default value is 1500.
[OFOS] set public-network LLL -mtu=4000
[OFOS] show public-network name group-name id pkey state type trunkMode mtu oper-mtu mode description uplink allowed-vlans --------------------------------------------------------------------------------------------------------- KKK default 777 7fff up/up subnet true 1500 1500 UD 0.1 1-11 LLL default 333 7fff up/up subnet true 4000 4000 UD 2/1 none