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Packet Loss

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Richard
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Packet loss is one of three key video conferencing performance metrics.  The other two are latency and jitter.

Typical numbers for acceptable packet loss during a conference range from 0.1% to 2% and anything less than 1% should be the highest tolerable threshold you would expect.

Packet loss for telepresence systems typically needs to be under 0.1% to remain unnoticed, with some vendors recommending even tighter specifications for their telepresence systems. The effect of packet loss on the video application is "blockiness" or pixelation and/or jerkiness of the video, as well as audio drop-outs.  A commonly-used term is "artifacting" or a "video artifact".

Can you achieve zero packet loss?

If your network is designed properly you can achieve zero packet loss, but that is true with any network.  And it is particularly important with interactive technologies like voice and video. Proper network design is critical with HD videoconferencing.  Video conferencing hardware vendors stress the importance of the IP network being designed and operated for video.

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