[ 1403.365576][    C2] tc mirred to Houston: device veth2 is down
[ 1403.988445][    C3] tc mirred to Houston: device veth2 is down
[ 1404.154362][    C3] tc mirred to Houston: device veth3 is down
[ 1404.307332][    C3] tc mirred to Houston: device veth2 is down
[ 1404.308358][    C2] tc mirred to Houston: device veth2 is down