[ 1236.679517][    C1] tc mirred to Houston: device veth2 is down
[ 1236.975272][    C1] tc mirred to Houston: device veth2 is down
[ 1237.087624][    C2] tc mirred to Houston: device veth2 is down
[ 1237.464449][    C1] tc mirred to Houston: device veth2 is down
[ 1237.542626][    C3] tc mirred to Houston: device veth3 is down
[ 1237.639291][    C1] tc mirred to Houston: device veth3 is down
[ 1237.919316][    C3] tc mirred to Houston: device veth3 is down