[ 1471.814966][    C3] tc mirred to Houston: device veth2 is down
[ 1472.228932][    C1] tc mirred to Houston: device veth2 is down
[ 1472.492824][    C1] tc mirred to Houston: device veth2 is down
[ 1472.493803][    C3] tc mirred to Houston: device veth2 is down
[ 1472.702677][    C2] tc mirred to Houston: device veth3 is down
[ 1472.733612][    C2] tc mirred to Houston: device veth3 is down
[ 1472.746607][    C2] tc mirred to Houston: device veth3 is down