[  748.506284] br0: port 1(c1) entered blocking state
[  748.506393] br0: port 1(c1) entered disabled state
[  748.506472] c1: entered allmulticast mode
[  748.506581] c1: entered promiscuous mode
[  748.592150] br0: port 2(c2) entered blocking state
[  748.592237] br0: port 2(c2) entered disabled state
[  748.592316] c2: entered allmulticast mode
[  748.592423] c2: entered promiscuous mode
[  748.680679] br0: port 3(c3) entered blocking state
[  748.680818] br0: port 3(c3) entered disabled state
[  748.680929] c3: entered allmulticast mode
[  748.681085] c3: entered promiscuous mode
[  748.758244] br0: port 4(sender) entered blocking state
[  748.758331] br0: port 4(sender) entered disabled state
[  748.758398] sender: entered allmulticast mode
[  748.758516] sender: entered promiscuous mode
[  748.793530] br0: port 4(sender) entered blocking state
[  748.793625] br0: port 4(sender) entered forwarding state
[  748.793698] br0: port 3(c3) entered blocking state
[  748.793758] br0: port 3(c3) entered forwarding state
[  748.793813] br0: port 2(c2) entered blocking state
[  748.793863] br0: port 2(c2) entered forwarding state
[  748.793921] br0: port 1(c1) entered blocking state
[  748.793974] br0: port 1(c1) entered forwarding state
[  759.584911] br0: port 1(c1) entered disabled state
[  759.585482] c1 (unregistering): left allmulticast mode
[  759.585583] c1 (unregistering): left promiscuous mode
[  759.585664] br0: port 1(c1) entered disabled state
[  759.646958] br0: port 2(c2) entered disabled state
[  759.647454] c2 (unregistering): left allmulticast mode
[  759.647542] c2 (unregistering): left promiscuous mode
[  759.647597] br0: port 2(c2) entered disabled state
[  759.722937] br0: port 3(c3) entered disabled state
[  759.723375] c3 (unregistering): left allmulticast mode
[  759.723479] c3 (unregistering): left promiscuous mode
[  759.723533] br0: port 3(c3) entered disabled state
[  759.787921] br0: port 4(sender) entered disabled state
[  759.788404] sender (unregistering): left allmulticast mode
[  759.788547] sender (unregistering): left promiscuous mode
[  759.788634] br0: port 4(sender) entered disabled state