Voice and Video Tests
What are they?
Voice and Video Tests and assessments are used to test a network specifically for voice and video traffic which use different protocols than data traffic. Voice assessments use diagnostic techniques to test for a networks readiness for VoIP where and Voice and Video Tests simulate actual traffic to see how the network handles these packets
What is a codec?
A codec converts sounds from analogue signals to digital signals by sampling the sound a few thousand times every second and compresses them into IP packets.
What metrics do we care about for voice and video traffic?
Bandwidth utilisation, packet loss, latency and jitter. Voice and video use UDP to transport packets so there is no retransmission of lost packets so a high level of loss is easily noticed in end quality. High levels of latency can result in a ‘lag’ in connection.
Voice Assessments
What is it?
Configuration
https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/appneta/GA/analyze-results/network-performance-monitoring-delivery/delivery-testing/delivery-voice.html#title-voice-delivery_basic-voice-assessments
Voice Tests
What is it?
Configuration
https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/appneta/GA/analyze-results/network-performance-monitoring-delivery/delivery-testing/delivery-voice.html#title-voice-delivery_voice-tests
Comparison of Voice Assessments and Tests
Video Tests
What are they?
Configuration: