[  556.418472] br0: port 1(c1) entered blocking state
[  556.418534] br0: port 1(c1) entered disabled state
[  556.418586] c1: entered allmulticast mode
[  556.418662] c1: entered promiscuous mode
[  556.498705] br0: port 2(c2) entered blocking state
[  556.498768] br0: port 2(c2) entered disabled state
[  556.498821] c2: entered allmulticast mode
[  556.498896] c2: entered promiscuous mode
[  556.580076] br0: port 3(c3) entered blocking state
[  556.580133] br0: port 3(c3) entered disabled state
[  556.580185] c3: entered allmulticast mode
[  556.580244] c3: entered promiscuous mode
[  556.665374] br0: port 4(sender) entered blocking state
[  556.665451] br0: port 4(sender) entered disabled state
[  556.665508] sender: entered allmulticast mode
[  556.665594] sender: entered promiscuous mode
[  556.700757] br0: port 4(sender) entered blocking state
[  556.700828] br0: port 4(sender) entered forwarding state
[  556.700882] br0: port 3(c3) entered blocking state
[  556.700932] br0: port 3(c3) entered forwarding state
[  556.700975] br0: port 2(c2) entered blocking state
[  556.701019] br0: port 2(c2) entered forwarding state
[  556.701061] br0: port 1(c1) entered blocking state
[  556.701104] br0: port 1(c1) entered forwarding state
[  567.503992] br0: port 1(c1) entered disabled state
[  567.504333] c1 (unregistering): left allmulticast mode
[  567.504390] c1 (unregistering): left promiscuous mode
[  567.504429] br0: port 1(c1) entered disabled state
[  567.572843] br0: port 2(c2) entered disabled state
[  567.573116] c2 (unregistering): left allmulticast mode
[  567.573162] c2 (unregistering): left promiscuous mode
[  567.573201] br0: port 2(c2) entered disabled state
[  567.620865] br0: port 3(c3) entered disabled state
[  567.621125] c3 (unregistering): left allmulticast mode
[  567.621173] c3 (unregistering): left promiscuous mode
[  567.621225] br0: port 3(c3) entered disabled state
[  567.680895] br0: port 4(sender) entered disabled state
[  567.681185] sender (unregistering): left allmulticast mode
[  567.681240] sender (unregistering): left promiscuous mode
[  567.681296] br0: port 4(sender) entered disabled state