Cisco Cisco WebEx Meeting Center WBS30 Libro bianco

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Network-Based Recording: Recorded Video Resolutions and FPS 
The Network-Based Recording (NBR) feature allows the meeting host and participants to record the meeting and 
play the recording of that meeting at some later time. Refer to the Cisco WebEx NBR user guide for more 
information about the NBR feature. 
Table 5 provides the default maximum encoding parameters for P2P and multipoint video mode with NBR, and 
Table 6 gives the average storage size when using NBR. 
Table 5. 
Default Maximum Encoding Parameters for P2P and Multipoint Video Mode with NBR 
P2P or Multipoint Video Session 
Recorded Resolution 
Encoding Bit Rate 
Frame Rate (fps) 
Multipoint (three or more participants) 
180p 
180 kbps 
Up to 12 
P2P (two participants only) 
180p 
180 kbps 
Up to 12 
P2P (two participants only) 
360p 
520 kbps 
Up to 30 
P2P (two participants only) 
720p 
1810 kbps 
Up to 30 
Table 6. 
Average Storage Size When Using NBR 
Meeting Content 
Approximate Storage Per 1 Hour of Recording 
Application sharing 
36 MB per hour 
Voice 
30 MB per hour 
180p video 
104 MB per hour 
360 HQ video 
337 MB per hour 
720p video 
987 MB per hour 
Note:   Note: Webcam videos are stored as the original resolution during NBR recording. However, during NBR 
playback the playing video resolution is restricted to 180p. 
Bandwidth Data 
Measurements and Methodology 
Bandwidth measurements for this paper were taken primarily on Cisco WebEx Meeting Center. However, note that 
the underlying architecture for WebEx services is common across all Cisco WebEx meeting services (Meeting 
Center, Training Center, Event Center, and Support Center) and uses the same network traffic. 
For this paper, the bandwidth requirements were measured under the following conditions and scenarios: 
● 
Idle (single static presentation slide, no changes, and no slide transitions) 
● 
Presentation share (single file uploaded to meeting) 
● 
Desktop and application share 
● 
Integrated WebEx VoIP (public switched telephone network [PSTN] audio was not part of this test) 
● 
Video (various web cams in HQ and HD modes) 
These test scenarios were created to emulate typical usage circumstances and identify how much network traffic 
resulted from these activities. The test also identified the high and low ranges of expected traffic to help you better 
understand the potential impact of WebEx on your network. 
Measurements were conducted by using various development tools. For the baseline, the test measured idle 
network traffic to help ensure information packets were not influenced by other network activities. Each test was 
executed multiple times to get an average result for each scenario.