tag:
priority: 300
type: txt
help: Dummy interface name
syntax:expression: pattern $VAR(@) "^dum[0-9]+$" \
                   ; "name must be (dum0-dum999)"
val_help: <dumN>; Dummy interface name

begin: [ -d /sys/module/dummy ] || sudo modprobe dummy

create: ip link add name $VAR(@) type dummy
        ip link set $VAR(@) up

delete: ip link set dev $VAR(@) down
        ip link delete dev $VAR(@)