[ 1403.304578][    C2] tc mirred to Houston: device veth2 is down
[ 1403.727525][    C2] tc mirred to Houston: device veth2 is down
[ 1403.728394][    C3] tc mirred to Houston: device veth2 is down
[ 1404.120513][    C2] tc mirred to Houston: device veth3 is down
[ 1404.270563][    C3] tc mirred to Houston: device veth2 is down