[ 2189.274529][T21136] br0: port 1(dummy0) entered blocking state
[ 2189.274855][T21136] br0: port 1(dummy0) entered disabled state
[ 2189.275143][T21136] dummy0: entered allmulticast mode
[ 2189.276167][T21136] dummy0: entered promiscuous mode
[ 2189.308758][T21137] br0: port 1(dummy0) entered blocking state
[ 2189.309112][T21137] br0: port 1(dummy0) entered forwarding state
[ 2191.836702][   T68] dummy0: left allmulticast mode
[ 2191.837020][   T68] dummy0: left promiscuous mode
[ 2191.837374][   T68] br0: port 1(dummy0) entered disabled state