Configure Real-Time Monitoring
For supported software information, click here.
Versa Operating SystemTM (VOSTM) real-time monitoring (RTM) monitors real-time audio, video, and voice flows for quality and user experience, which is reported in a mean opinion score (MOS) that represents the user experience of the audio, video, and voice applications. Network impairments, such as loss, jitter, delay over a link between clients, and the codec used affect the MOS score of real-time applications.
RTM works in conjunction with the VOS application identifier (AppID) engine to compute the MOS score. The AppID engine intercepts RTP and RTCP flows and sends a copy of the packets to RTM. RTM processes the stream to determine the codec, delay, loss, and jitter, and then uses this information to calculate the MOS score. RTM performs the MOS computation in real time, for example, when a voice call is active, not after the call ends. The VOS device then uses the computed MOS as an input for other components such as SD-WAN SLA profiles.
Enabling RTM has no impact on system load or performance.
VOS devices support the following audio, video and voice codecs:
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C-3 Audio MPEG-4 AAC MPEG-4 LD-AAC MPEG-4 HE-AAC WMA Professional MPEG-4 HE-AACv2 MPEG-4 LC-AAC AMR-WB+ Vorbis JPEG-compressed Video MPEG-1 Video MPEG-2 Video H.261 H.263 H.263+ H.264
VC1 On2 VP6 H.264 SVC VP8 VP9 H.265 G.711 u-law G.711 u-law/PLC G.723.1 5.3k G.723.1 6.3k G.728 G.729/G.729B G.729A/G.729AB GSM-FR GSM-HR GSM-EFR |
SX7300 SX9600 G.711 A-law G.711 A-law/PLC G.726 16k G.726 24k G.726 32k G.726 40k GIPS Enhanced G.711 u-law GIPS Enhanced G.711 A-law GIPS iLBC GIPS iSAC GIPS iPCM-wb G.729E 8.0k G.729E 11.8k WB Linear PCM WB Linear PCM/PLC G.722 64k G.722 56k G.722 48k Siren7/G.722.1 32k Siren7/G.722.1 24k AMR-WB/G.722.2 23.85k AMR-WB/G.722.2 23.05k AMR-WB/G.722.2 19.85k AMR-WB/G.722.2 18.25k AMR-WB/G.722.2 15.85k AMR-WB/G.722.2 14.25k AMR-WB/G.722.2 12.65k AMR-WB/G.722.2 8.85k AMR-WB/G.722.2 6.6k QCELP8 QCELP13 EVRC SMV AMR-NB 12.2k AMR-NB 10.2k Speex WB 12.8k Speex WB 16.8k Speex WB 20.6k Speex WB 23.8k Speex WB 27.8k |
AMR-NB 7.95k AMR-NB 7.4k AMR-NB 6.7k AMR-NB 5.9k AMR-NB 5.15k AMR-NB 4.75k iLBC 13.3k iLBC 15.2k G.711 u-law 56k G.711 u-law/PLC 56k G.711 A-law 56k G.711 A-law/PLC 56k G.723.1-Annex C Speex NB 2.15k Speex NB 5.95k Speex NB 8k Speex NB 11k Speex NB 15k Speex NB 18.2k Speex NB 24.6k Speex NB 3.95k Speex WB 34.2k Speex WB 42.2k BroadVoice BV16 BroadVoice BV32 IS 54 PDC 6.7k AMBE2Plus 2.4k AMBE2Plus 3.2k AMBE2Plus 4k AMBE2Plus 4.8k EVRC-B MS RT Audio WB MS RT Audio NB MS RT Audio WB (FEC)
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MS RT Audio NB (FEC) GIPS G.729 Silk NB Silk NB (FEC) Silk MB Silk MB (FEC) Silk WB Silk WB (FEC) Silk SWB Silk SWB (FEC) EVRC-WB EVRC-NW AMR-WB+ Siren7/G.722.1 16k Siren14/G.722.1C 24k Siren14/G.722.1C 32k Siren14/G.722.1C 48k Siren14/G.722.1C 24k (LPR) Siren14/G.722.1C 32k (LPR) Siren14/G.722.1C 48k (LPR) Siren22 32k Siren22 48k Siren22 64k Siren22 32k (LPR) Siren22 48k (LPR) Siren22 64k (LPR) G.719 32k G.719 48k G.719 64k Opus Silk NB Opus Silk NB (FEC) Opus Silk MB Opus Silk MB (FEC) Opus Silk WB Opus Silk WB (FEC) Opus Hybrid SWB Opus Hybrid SWB (FEC) Opus Hybrid FB Opus Hybrid FB (FEC) |
Opus CELT NB Opus CELT WB Opus CELT SWB Opus CELT FB EVS NB EVS NB (FEC) EVS WB EVS WB (FEC) EVS SWB EVS SWB (FEC) EVS FB EVS FB (FEC) L16 NB L16 NB/PLC L16 WB L16 WB/PLC L16 SWB L16 SWB/PLC L16 FB L16 FB/PLC G.722 64k G.722 56k G.722 48k G.722 64k/PLC App. 3 G.722 56k/PLC App. 3 G.722 48k/PLC App. 3 G.722 64k/PLC App. 4 G.722 56k/PLC App. 4 G.722 48k/PLC App. 4 iSAC WB iSAC SWB iSAC WB NetEQ iSAC SWB NetEQ iSAC WB NetEQ4 iSAC SWB NetEQ4 AMR-NB (VBR) AMR-WB (VBR) |
VOS devices have been tested with and support the following video conferencing applications:
- GTalk
- Microsoft Teams
- RingCentral Phones
- Skype for Business
- Webex (for Releases 21.2.1 and later)
- Zoom (for Releases 21.2.1 and later)
Enable RTM
To enable RTM on a VOS device, you configure an SD-WAN traffic steering forwarding profile, which you include in an SD-WAN traffic steering policy. You select the Evaluate Continuously field on the General tab, to have a real-time application change to a better path if one becomes available. You also enable MOS score monitoring.
For more information, see Configure SD-WAN Traffic Steering and Configure MOS Score Monitoring.
Supported Software Information
Releases 20.2 and later support all content described in this article, except:
- Releases 21.2.1 and later support the Webex and Zoom video conferencing applications.