[ 2203.271837][T29766] br0: port 1(dummy0) entered blocking state
[ 2203.272091][T29766] br0: port 1(dummy0) entered disabled state
[ 2203.272314][T29766] dummy0: entered allmulticast mode
[ 2203.273300][T29766] dummy0: entered promiscuous mode
[ 2203.309613][T29767] br0: port 1(dummy0) entered blocking state
[ 2203.309963][T29767] br0: port 1(dummy0) entered forwarding state
[ 2205.247507][   T70] dummy0: left allmulticast mode
[ 2205.247680][   T70] dummy0: left promiscuous mode
[ 2205.247901][   T70] br0: port 1(dummy0) entered disabled state