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RealPresence Collaboration Server 800s Administrator’s Guide
4-6 Polycom, Inc.
Default Minimum Threshold Line Rates and Resource Usage Summary
The following Table summarizes the Default Minimum Threshold Line Rates and Video
Resource usage for each of the pre-defined optimization settings for each Resolution, H.264
Profile, Video Quality setting.
Resolution Configuration for CP Conferences
The Resolution Configuration dialog box enables Collaboration Server administrators to
override the default video resolution decision matrix, effectively creating their own decision
matrix. The minimum threshold line rates at which endpoints are connected at the various
video resolutions can be optimized by adjusting the resolution sliders.
System resource usage is also affected by the Resolution Configuration settings. For more
information see "Video Resource Usage” on page 4-4 and "Default Minimum Threshold Line
Rates and Resource Usage Summary” on page 4-6.
Guidelines
• Resolution Slider settings affect all Continuous Presence (CP) conferences running on the
Collaboration Server. Video Switched conferences are not affected.
• A system restart is not needed after changing the Resolution Slider settings.
• Resolution Slider settings cannot be changed if there are ongoing conferences running on
the Collaboration Server.
Table 4-2 Default Minimum Threshold Line Rates and Video Resource Usage
Resolution
Profile
Optimization Mode
Balanced Resource Video Quality
HD720p30
Default
kbps
High 832 1920 512
Base 1024 1920 832
Resources 2 2 2
SD 30
Default
kbps
High 256 384 256
Base 256 384 256
Resources 1 1 1
CIF 30
Default
kbps
High 64 64 64
Base 64 64 64
Resources 1 1 1
The table above lists resource consumption for H.264:
• CIF resolution consumes 1 resources.
• 4CIF resolution consumes 1 resources.
• HD720p resolution consumes 2 resources.