[  673.899831][T21220] veth0: entered allmulticast mode
[  673.900201][T21220] veth1: entered allmulticast mode
[  673.900469][T21220] veth2: entered allmulticast mode
[  673.900721][T21220] veth3: entered allmulticast mode
[  684.837269][T21220] veth0: left allmulticast mode
[  684.837598][T21220] veth1: left allmulticast mode
[  684.837855][T21220] veth2: left allmulticast mode
[  684.838113][T21220] veth3: left allmulticast mode