[ 1227.768233][ T8004] Mirror/redirect action on
[ 1227.777412][ T8001] tc (8001) used greatest stack depth: 23872 bytes left
[ 1227.800038][    C2] tc mirred to Houston: device veth2 is down
[ 1227.894969][    C2] tc mirred to Houston: device veth2 is down
[ 1227.966085][    C3] tc mirred to Houston: device veth3 is down
[ 1227.981855][    C3] tc mirred to Houston: device veth3 is down