[ 2203.077106][ T5453] br0: port 1(dummy0) entered blocking state
[ 2203.077297][ T5453] br0: port 1(dummy0) entered disabled state
[ 2203.077458][ T5453] dummy0: entered allmulticast mode
[ 2203.078328][ T5453] dummy0: entered promiscuous mode
[ 2203.105520][ T5454] br0: port 1(dummy0) entered blocking state
[ 2203.105767][ T5454] br0: port 1(dummy0) entered forwarding state
[ 2205.467307][   T68] dummy0: left allmulticast mode
[ 2205.467933][   T68] dummy0: left promiscuous mode
[ 2205.468263][   T68] br0: port 1(dummy0) entered disabled state