[ 2030.880306][T12010] br0: port 1(dummy0) entered blocking state
[ 2030.880500][T12010] br0: port 1(dummy0) entered disabled state
[ 2030.880667][T12010] dummy0: entered allmulticast mode
[ 2030.881655][T12010] dummy0: entered promiscuous mode
[ 2030.904198][T12011] br0: port 1(dummy0) entered blocking state
[ 2030.904486][T12011] br0: port 1(dummy0) entered forwarding state
[ 2032.770136][   T12] dummy0: left allmulticast mode
[ 2032.771117][   T12] dummy0: left promiscuous mode
[ 2032.771352][   T12] br0: port 1(dummy0) entered disabled state