[ 1904.860044][T31573] br0: port 1(dummy0) entered blocking state
[ 1904.860389][T31573] br0: port 1(dummy0) entered disabled state
[ 1904.860732][T31573] dummy0: entered allmulticast mode
[ 1904.862373][T31573] dummy0: entered promiscuous mode
[ 1904.899398][T31574] br0: port 1(dummy0) entered blocking state
[ 1904.899715][T31574] br0: port 1(dummy0) entered forwarding state
[ 1907.183015][   T73] dummy0: left allmulticast mode
[ 1907.183338][   T73] dummy0: left promiscuous mode
[ 1907.183579][   T73] br0: port 1(dummy0) entered disabled state