[ 2029.117854][T23727] br0: port 1(dummy0) entered blocking state
[ 2029.118044][T23727] br0: port 1(dummy0) entered disabled state
[ 2029.118208][T23727] dummy0: entered allmulticast mode
[ 2029.119251][T23727] dummy0: entered promiscuous mode
[ 2029.143736][T23728] br0: port 1(dummy0) entered blocking state
[ 2029.144022][T23728] br0: port 1(dummy0) entered forwarding state
[ 2031.077357][   T12] dummy0: left allmulticast mode
[ 2031.077656][   T12] dummy0: left promiscuous mode
[ 2031.077884][   T12] br0: port 1(dummy0) entered disabled state