[ 1556.097111][ T4744] Mirror/redirect action on
[ 1556.117085][ T4740] tc (4740) used greatest stack depth: 23448 bytes left
[ 1556.279633][    C2] tc mirred to Houston: device veth2 is down
[ 1556.666828][    C3] tc mirred to Houston: device veth2 is down
[ 1556.858713][    C3] tc mirred to Houston: device veth2 is down
[ 1556.986899][    C2] tc mirred to Houston: device veth2 is down
[ 1557.230822][    C1] tc mirred to Houston: device veth3 is down
[ 1557.236724][    C2] tc mirred to Houston: device veth3 is down
[ 1557.626854][    C3] tc mirred to Houston: device veth3 is down