[  550.039942] br0: port 1(c1) entered blocking state
[  550.040000] br0: port 1(c1) entered disabled state
[  550.040051] c1: entered allmulticast mode
[  550.040127] c1: entered promiscuous mode
[  550.115540] br0: port 2(c2) entered blocking state
[  550.115594] br0: port 2(c2) entered disabled state
[  550.115643] c2: entered allmulticast mode
[  550.115715] c2: entered promiscuous mode
[  550.191468] br0: port 3(c3) entered blocking state
[  550.191521] br0: port 3(c3) entered disabled state
[  550.191579] c3: entered allmulticast mode
[  550.191655] c3: entered promiscuous mode
[  550.262761] br0: port 4(sender) entered blocking state
[  550.262820] br0: port 4(sender) entered disabled state
[  550.262872] sender: entered allmulticast mode
[  550.262954] sender: entered promiscuous mode
[  550.295471] br0: port 4(sender) entered blocking state
[  550.295552] br0: port 4(sender) entered forwarding state
[  550.295613] br0: port 3(c3) entered blocking state
[  550.295673] br0: port 3(c3) entered forwarding state
[  550.295731] br0: port 2(c2) entered blocking state
[  550.295784] br0: port 2(c2) entered forwarding state
[  550.295838] br0: port 1(c1) entered blocking state
[  550.295891] br0: port 1(c1) entered forwarding state
[  561.103936] br0: port 1(c1) entered disabled state
[  561.104197] c1 (unregistering): left allmulticast mode
[  561.104240] c1 (unregistering): left promiscuous mode
[  561.104283] br0: port 1(c1) entered disabled state
[  561.159899] br0: port 2(c2) entered disabled state
[  561.160232] c2 (unregistering): left allmulticast mode
[  561.160291] c2 (unregistering): left promiscuous mode
[  561.160331] br0: port 2(c2) entered disabled state
[  561.221927] br0: port 3(c3) entered disabled state
[  561.222345] c3 (unregistering): left allmulticast mode
[  561.222407] c3 (unregistering): left promiscuous mode
[  561.222470] br0: port 3(c3) entered disabled state
[  561.281876] br0: port 4(sender) entered disabled state
[  561.282108] sender (unregistering): left allmulticast mode
[  561.282168] sender (unregistering): left promiscuous mode
[  561.282215] br0: port 4(sender) entered disabled state