[ 1177.342973][T24136] 8021q: adding VLAN 0 to HW filter on device b0
[ 1177.343962][T24136] t0: Port device b0 added
[ 1177.478484][T24141] 8021q: adding VLAN 0 to HW filter on device t0
[ 1178.407403][   T68] t0: Port device b0 removed
[ 1178.408082][   T68] b0 (unregistering): Released all slaves