The Packet Loss Percentage view shows the percentage of data lost on the monitored network and the loss rate in packets per second.
The monitoring device calculates Packet Loss Percentage by observing the ratio of retransmitted data to total data within the network from its vantage point next to the server. The monitoring device can see packets retransmitted by the server because of data losses in the server-to-client direction along the network path. When data loss occurs in the client-to-server direction (in the network path before reaching the server, for example), the monitoring device cannot observe such packet loss and that delay is not included in the Packet Loss Percentage.
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