[ 2152.798250][T20322] br0: port 1(dummy0) entered blocking state
[ 2152.798441][T20322] br0: port 1(dummy0) entered disabled state
[ 2152.798600][T20322] dummy0: entered allmulticast mode
[ 2152.799463][T20322] dummy0: entered promiscuous mode
[ 2152.825231][T20323] br0: port 1(dummy0) entered blocking state
[ 2152.825414][T20323] br0: port 1(dummy0) entered forwarding state
[ 2154.854542][   T68] dummy0: left allmulticast mode
[ 2154.854737][   T68] dummy0: left promiscuous mode
[ 2154.854989][   T68] br0: port 1(dummy0) entered disabled state