[ 2068.015958][ T6526] br0: port 1(dummy0) entered blocking state
[ 2068.016186][ T6526] br0: port 1(dummy0) entered disabled state
[ 2068.016401][ T6526] dummy0: entered allmulticast mode
[ 2068.017904][ T6526] dummy0: entered promiscuous mode
[ 2068.041032][ T6527] br0: port 1(dummy0) entered blocking state
[ 2068.041287][ T6527] br0: port 1(dummy0) entered forwarding state
[ 2070.176488][   T12] dummy0: left allmulticast mode
[ 2070.176832][   T12] dummy0: left promiscuous mode
[ 2070.177064][   T12] br0: port 1(dummy0) entered disabled state