Calculating network efficiency using packet loss and retransmitted data

Packet loss occurs when one or more packets within a transmission are successfully sent, but fail to arrive at the destination. Packet loss can be caused by a variety of factors including network congestion, faulty network components such as hardware or drivers, or corrupted packets within the transmission. If the transmission experiences packet loss, it may cause the following:

• Jitter in video conferences
• Gaps in audio during VoIP communications
• Performance issues when streaming media

To recover from packet loss, data must be retransmitted to the destination to complete requests successfully. The amount of data retransmitted per flowthe network traffic between network objects is used to calculate the Network Efficiency metric.

• Efficiency = 100% * (transferred - retransmitted) / transferred
• Network Loss = 100 - Efficiency

Related topics

• Round Trip Time
• Network and Server Delay in a Read Transaction
• Network and Server Delay in a Write Transaction
• Delay Normalization