[ 2381.120390][T29519] br0: port 1(dummy0) entered blocking state
[ 2381.120624][T29519] br0: port 1(dummy0) entered disabled state
[ 2381.120859][T29519] dummy0: entered allmulticast mode
[ 2381.121891][T29519] dummy0: entered promiscuous mode
[ 2381.151318][T29520] br0: port 1(dummy0) entered blocking state
[ 2381.151578][T29520] br0: port 1(dummy0) entered forwarding state
[ 2383.588337][   T69] dummy0: left allmulticast mode
[ 2383.589075][   T69] dummy0: left promiscuous mode
[ 2383.589317][   T69] br0: port 1(dummy0) entered disabled state