[  839.107954][    C1] tc mirred to Houston: device veth2 is down
[  839.109368][    C3] tc mirred to Houston: device veth2 is down
[  839.298345][    C2] tc mirred to Houston: device veth3 is down
[  839.364348][    C2] tc mirred to Houston: device veth3 is down