[  750.864241] br0: port 1(c1) entered blocking state
[  750.864333] br0: port 1(c1) entered disabled state
[  750.864400] c1: entered allmulticast mode
[  750.864475] c1: entered promiscuous mode
[  750.915770] br0: port 2(c2) entered blocking state
[  750.915831] br0: port 2(c2) entered disabled state
[  750.915886] c2: entered allmulticast mode
[  750.915963] c2: entered promiscuous mode
[  750.963482] br0: port 3(c3) entered blocking state
[  750.963573] br0: port 3(c3) entered disabled state
[  750.963641] c3: entered allmulticast mode
[  750.963717] c3: entered promiscuous mode
[  751.013754] br0: port 4(sender) entered blocking state
[  751.013835] br0: port 4(sender) entered disabled state
[  751.013899] sender: entered allmulticast mode
[  751.013992] sender: entered promiscuous mode
[  751.034930] br0: port 4(sender) entered blocking state
[  751.035014] br0: port 4(sender) entered forwarding state
[  751.035072] br0: port 3(c3) entered blocking state
[  751.035120] br0: port 3(c3) entered forwarding state
[  751.035171] br0: port 2(c2) entered blocking state
[  751.035223] br0: port 2(c2) entered forwarding state
[  751.035270] br0: port 1(c1) entered blocking state
[  751.035329] br0: port 1(c1) entered forwarding state
[  761.768193] br0: port 1(c1) entered disabled state
[  761.768706] c1 (unregistering): left allmulticast mode
[  761.768814] c1 (unregistering): left promiscuous mode
[  761.768871] br0: port 1(c1) entered disabled state
[  761.814153] br0: port 2(c2) entered disabled state
[  761.814587] c2 (unregistering): left allmulticast mode
[  761.814680] c2 (unregistering): left promiscuous mode
[  761.814737] br0: port 2(c2) entered disabled state
[  761.866174] br0: port 3(c3) entered disabled state
[  761.866547] c3 (unregistering): left allmulticast mode
[  761.866632] c3 (unregistering): left promiscuous mode
[  761.866696] br0: port 3(c3) entered disabled state
[  761.910095] br0: port 4(sender) entered disabled state
[  761.910498] sender (unregistering): left allmulticast mode
[  761.910569] sender (unregistering): left promiscuous mode
[  761.910620] br0: port 4(sender) entered disabled state