路由器根据分组的聚集(aggregation)速率和路由器的服务速率(servicerate)来估算拥塞水平(congestion level),并将拥塞水平分为三个级别,嵌入到分组的IP头部ECN位。由于VCP利用IP头部格式,且是基于窗口发送的,因此和TCP是兼容的。
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Automatic Congestion Level 自动壅塞程度
congestion level of networks 拥塞程度
traffic congestion level index 交通拥挤水平指数
The existing methods for RTT-aware conditioner work well when the congestion level is low.
然而现有的RTT感知流量调节机制在网络拥塞程度较轻时非常有效。
To mitigate the bias of TCP congestion mechanisms to short RTT flows, the existing methods cannot work well when network congestion level is high due to the over protecting to long RTT flows.
为了缓解TCP拥塞控制机制对于往返时间(rtt)较小流的偏向问题,现有方法在网络拥塞程度严重时由于对rtt较大流的过分保护而不能有效地工作。
As congestion grows beyond this level, traffic slows down and congestion sets in.
如果流量超过这一水平,通行将减缓,公路将开始出现拥堵情况。
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