[ 1448.844329][    C1] tc mirred to Houston: device veth2 is down
[ 1448.849215][    C2] tc mirred to Houston: device veth2 is down
[ 1449.240257][    C2] tc mirred to Houston: device veth2 is down
[ 1449.472296][    C2] tc mirred to Houston: device veth2 is down
[ 1449.668498][    C2] tc mirred to Houston: device veth3 is down
[ 1449.792342][    C1] tc mirred to Houston: device veth2 is down
[ 1449.992706][    C3] tc mirred to Houston: device veth3 is down