[ 2595.671600] br0: port 1(dummy0) entered disabled state
[ 2595.787988] br0: port 1(dummy0) entered listening state
[ 2597.007211] br0: port 1(dummy0) entered learning state
[ 2597.120991] br0: port 1(dummy0) entered forwarding state
[ 2597.234347] br0: port 1(dummy0) entered forwarding state
[ 2612.525184] br0: port 1(dummy0) entered disabled state
[ 2612.600069] br0: port 1(dummy0) entered blocking state
[ 2612.600904] br0: port 1(dummy0) entered listening state
[ 2632.658201] br0: port 1(dummy0) entered learning state
[ 2653.136578] br0: port 1(dummy0) entered forwarding state
[ 2653.137464] br0: topology change detected, propagating
[ 2673.193043] br0: port 1(dummy0) entered disabled state
[ 2673.282664] device dummy0 left promiscuous mode
[ 2673.283579] br0: port 1(dummy0) entered disabled state