If a network interface goes down, traffic needs to be routed over an alternate path.

如果网络接口失效，需要用替代路径进行路由。

youdao

"If you want to examine the content of DNS traffic you have to be in the path of the traffic," said Joffe.

Joffe说：“如果你想要检查DNS流量的内容，你就必须要深入到流量的路径。”

youdao

SCTP monitors the paths of the association using a built-in heartbeat; upon detecting a path failure, the protocol sends traffic over the alternate path.

SCTP负责使用内嵌的heartbeat机制来监视联合的路径；在检测到一条路径失效时，协议就会通过另外一条路径来发送通信数据。

youdao

Dedicated lanes give buses an uncongested path, and traffic-signal priority gives buses the power, once reserved for emergency vehicles, to switch signals from red to green as they approach.

FORBES: Busting Bus Bunching With Traffic Signals

The Jetpatcher does all this in one smooth operation, then moves on to the next pothole as traffic resumes its path over the newly repaired road.

BBC: Jetpatchers at work

Salman had found that the easiest way to deal with the phalanx of trucks was simply to clear a path for them, to stop civilian traffic and let the security cars rumble through.

NPR: Witness Testimony Sheds Light on Blackwater