Cisco Cisco WebEx Meeting Center WBS30 Libro bianco
© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Page 15 of 24
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.
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.