Polycom® RealPresence Collaboration Server 800s Getting Started Guide
3-36 Polycom, Inc.
The display of Network Quality icon (showing or hiding the icon) and the position of the icon
in the video layout cell can be customized by modifying the values of the relevant System
Flags.
For more information see "Manually Adding and Deleting System Flags” on page 21-12.
Network Quality Levels
Network quality is determined by the percentage of packet loss according to the following
default threshold values:
• Packet loss less than 1% is considered Normal
• Packet loss in the range of 1% - 5% is considered Major
• Packet loss above 5% is considered Critical.
The default Major and Critical indication threshold values can be manually modified by
changing the system flag values.
Major and Critical states are indicated with yellow and red indicator bars respectively.
When network quality improves from Critical to Major remaining stable for 5 seconds, the
Network Quality Indicator is changed accordingly and when network quality improves from
Major to Normal, remaining stable for 5 seconds, the Network Quality Indicator is no longer
displayed.
Guidelines
Network Quality Indicators are displayed for:
• The Video Channel only in AVC Conferencing Mode.
Content, Audio and FECC Channel quality issues are not indicated.
• The participant’s own endpoint:
— Network Quality Indicators are displayed by default and can be disabled
— For media transmitted to and received from the RMX (Video in / Video out).
• Participants displayed in the cells of the conference Video Layout:
— Network Quality Indicators are not displayed by default and can be enabled
— The media transmitted from the endpoint to the RMX (Video in).
Network Quality Indicators:
• Are supported with MPMx cards only
• Are not supported in:
— SVC Conferencing Mode
— AVC - Video switched conferences
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