[  556.233735] br0: port 1(c1) entered blocking state
[  556.233824] br0: port 1(c1) entered disabled state
[  556.233895] c1: entered allmulticast mode
[  556.233980] c1: entered promiscuous mode
[  556.322281] br0: port 2(c2) entered blocking state
[  556.322357] br0: port 2(c2) entered disabled state
[  556.322427] c2: entered allmulticast mode
[  556.322510] c2: entered promiscuous mode
[  556.403551] br0: port 3(c3) entered blocking state
[  556.403621] br0: port 3(c3) entered disabled state
[  556.403692] c3: entered allmulticast mode
[  556.403765] c3: entered promiscuous mode
[  556.488761] br0: port 4(sender) entered blocking state
[  556.488835] br0: port 4(sender) entered disabled state
[  556.488902] sender: entered allmulticast mode
[  556.488999] sender: entered promiscuous mode
[  556.520819] br0: port 4(sender) entered blocking state
[  556.520891] br0: port 4(sender) entered forwarding state
[  556.520947] br0: port 3(c3) entered blocking state
[  556.520991] br0: port 3(c3) entered forwarding state
[  556.521044] br0: port 2(c2) entered blocking state
[  556.521092] br0: port 2(c2) entered forwarding state
[  556.521140] br0: port 1(c1) entered blocking state
[  556.521187] br0: port 1(c1) entered forwarding state
[  567.335892] br0: port 1(c1) entered disabled state
[  567.336152] c1 (unregistering): left allmulticast mode
[  567.336189] c1 (unregistering): left promiscuous mode
[  567.336225] br0: port 1(c1) entered disabled state
[  567.400883] br0: port 2(c2) entered disabled state
[  567.401314] c2 (unregistering): left allmulticast mode
[  567.401386] c2 (unregistering): left promiscuous mode
[  567.401446] br0: port 2(c2) entered disabled state
[  567.459861] br0: port 3(c3) entered disabled state
[  567.460109] c3 (unregistering): left allmulticast mode
[  567.460168] c3 (unregistering): left promiscuous mode
[  567.460215] br0: port 3(c3) entered disabled state
[  567.515889] br0: port 4(sender) entered disabled state
[  567.516124] sender (unregistering): left allmulticast mode
[  567.516165] sender (unregistering): left promiscuous mode
[  567.516211] br0: port 4(sender) entered disabled state