[ 1994.310950][T17065] br0: port 1(dummy0) entered blocking state
[ 1994.311181][T17065] br0: port 1(dummy0) entered disabled state
[ 1994.311402][T17065] dummy0: entered allmulticast mode
[ 1994.312353][T17065] dummy0: entered promiscuous mode
[ 1994.336608][T17066] br0: port 1(dummy0) entered blocking state
[ 1994.336963][T17066] br0: port 1(dummy0) entered forwarding state
[ 1996.326907][   T12] dummy0: left allmulticast mode
[ 1996.327062][   T12] dummy0: left promiscuous mode
[ 1996.327259][   T12] br0: port 1(dummy0) entered disabled state