Xorp can't resolv vlan name if it's name type DEV_PLUS_VID or
DEV_PLUS_VID_NO_PAD.
Default name-type for fedora DEV_PLUS_VID_NO_PAD.
* name-type: VLAN_PLUS_VID (vlan0005), VLAN_PLUS_VID_NO_PAD (vlan5),
DEV_PLUS_VID (eth0.0005), DEV_PLUS_VID_NO_PAD (eth0.5)