[ 2171.836620][T11395] br0: port 1(dummy0) entered blocking state
[ 2171.836861][T11395] br0: port 1(dummy0) entered disabled state
[ 2171.837076][T11395] dummy0: entered allmulticast mode
[ 2171.838127][T11395] dummy0: entered promiscuous mode
[ 2171.867226][T11396] br0: port 1(dummy0) entered blocking state
[ 2171.867517][T11396] br0: port 1(dummy0) entered forwarding state
[ 2174.296483][   T12] dummy0: left allmulticast mode
[ 2174.297394][   T12] dummy0: left promiscuous mode
[ 2174.297639][   T12] br0: port 1(dummy0) entered disabled state