As already mentioned, the speed should not be relied upon, but the dropped packet counts can be a useful metric.
正如前面提到的，不应该把速度作为可靠的性能指标，但是丢失的数据包数量是有意义的。
In all cases, you are looking for a high level of error packets, retransmissions, or dropped packet transmission, all of which indicate that the network is busy.
在所有情况下，都要寻找比较高的错误数据包、重新传输或丢失数据包传输数量，这些都说明网络忙。
And, because iptrace examines the entire packet from the kernel space, the results can offer lots of dropped packets.
而且，因为iptrace将检查来自内核空间的完整的数据包，所以其结果可能导致丢弃大量的数据包。
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