type: u32
help: OSPF administrative distance
val_help: u32:1-255; Administrative distance

syntax:expression: $VAR(@) >= 1 && $VAR(@) <= 255; "Must be between 1-255"

update:expression: "vtysh -c \"configure terminal\" \
       -c \"router ospf\" \
       -c \"distance $VAR(@) \"; "

delete:expression: "vtysh -c \"configure terminal\" \
       -c \"router ospf\" \
       -c \"no distance $VAR(@) \"; "
