type: txt
help: Network type
syntax:expression: $VAR(@) in "broadcast", "point-to-point"; \
       "Must be (broadcast|point-to-point)"
update:vtysh -c "configure terminal" -c "interface $IFNAME" -c "ipv6 ospf network $VAR(@)"
delete:vtysh -c "configure terminal" -c "interface $IFNAME" -c "no ipv6 ospf network"

val_help: broadcast; Broadcast network type
val_help: point-to-point; Point-to-point network type