[ 2541.434099] br0: port 1(dummy0) entered disabled state
[ 2541.532463] br0: port 1(dummy0) entered listening state
[ 2542.764617] br0: port 1(dummy0) entered learning state
[ 2542.861625] br0: port 1(dummy0) entered forwarding state
[ 2542.960365] br0: port 1(dummy0) entered forwarding state
[ 2558.259734] br0: port 1(dummy0) entered disabled state
[ 2558.328528] br0: port 1(dummy0) entered blocking state
[ 2558.329107] br0: port 1(dummy0) entered listening state
[ 2578.529400] br0: port 1(dummy0) entered learning state
[ 2599.009038] br0: port 1(dummy0) entered forwarding state
[ 2599.011065] br0: topology change detected, propagating
[ 2618.851866] br0: port 1(dummy0) entered disabled state
[ 2618.919114] device dummy0 left promiscuous mode
[ 2618.919603] br0: port 1(dummy0) entered disabled state