[ 2166.800348][T12500] br0: port 1(dummy0) entered blocking state
[ 2166.800541][T12500] br0: port 1(dummy0) entered disabled state
[ 2166.800700][T12500] dummy0: entered allmulticast mode
[ 2166.801958][T12500] dummy0: entered promiscuous mode
[ 2166.830963][T12501] br0: port 1(dummy0) entered blocking state
[ 2166.831255][T12501] br0: port 1(dummy0) entered forwarding state
[ 2169.209494][   T12] dummy0: left allmulticast mode
[ 2169.211537][   T12] dummy0: left promiscuous mode
[ 2169.211788][   T12] br0: port 1(dummy0) entered disabled state