The retransmission request will be waiting in the buffer when congestion occurs in the upstream path, so it can avoid worsening the congestion and even losing the request.

同时，该方案还考虑在网络拥塞时对重传请求进行缓冲等待处理，这样就不会因为向上级缓冲路由器发送该请求而加重拥塞的程度，甚至造成该重传请求的最终丢失。

youdao

The retransmission request will be waiting in the buffer when congestion occurs in the upstream path, so it can avoid worsening the congestion and even losing the request.

同时，该方案还考虑在网络拥塞时对重传请求进行缓冲等待处理，这样就不会因为向上级缓冲路由器发送该请求而加重拥塞的程度，甚至造成该重传请求的最终丢失。

youdao