[ 1821.220726][    C1] tc mirred to Houston: device veth2 is down
[ 1821.873629][    C1] tc mirred to Houston: device veth2 is down
[ 1822.000551][    C2] tc mirred to Houston: device veth2 is down
[ 1822.064744][    C2] tc mirred to Houston: device veth2 is down
[ 1822.401612][    C2] tc mirred to Houston: device veth3 is down