[ 1522.404049][ T4441] veth0: entered allmulticast mode
[ 1522.404598][ T4441] veth1: entered allmulticast mode
[ 1522.404906][ T4441] veth2: entered allmulticast mode
[ 1522.405570][ T4441] veth3: entered allmulticast mode
[ 1548.503713][ T4441] veth0: left allmulticast mode
[ 1548.504839][ T4441] veth1: left allmulticast mode
[ 1548.505094][ T4441] veth2: left allmulticast mode
[ 1548.505334][ T4441] veth3: left allmulticast mode