[ 1926.566579][T11704] br0: port 1(dummy0) entered blocking state
[ 1926.566774][T11704] br0: port 1(dummy0) entered disabled state
[ 1926.566939][T11704] dummy0: entered allmulticast mode
[ 1926.567787][T11704] dummy0: entered promiscuous mode
[ 1926.599665][T11705] br0: port 1(dummy0) entered blocking state
[ 1926.599852][T11705] br0: port 1(dummy0) entered forwarding state
[ 1928.479722][   T12] dummy0: left allmulticast mode
[ 1928.479971][   T12] dummy0: left promiscuous mode
[ 1928.480241][   T12] br0: port 1(dummy0) entered disabled state