templates/interfaces/vti/node.tag/mtu/node.def


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type: u32
priority: 382
help: Maximum Transmission Unit (MTU)
syntax:expression: $VAR(@) >= 68 && $VAR(@) <= 9000; "Must be between 68-9000"
val_help: u32:68-9000; Maximum Transmission Unit (MTU)

update:
    if [ -d /sys/class/net/$VAR(../@) ] ; then
        ip link set $VAR(../@) mtu $VAR(@)
    fi
delete:
    if [ -d /sys/class/net/$VAR(../@) ] ; then
        ip link set $VAR(../@) mtu 1500
    fi