Network Quality Levels; Indication Threshold Values; Guidelines - Polycom RealPresence 800s Administrator's Manual

Polycom® RealPresence Collaboration Server 800s Administrator's Guide

Network Quality Levels

Network quality is determined by the percentage of packet loss according to the following
default threshold values:
•
•
•
Major and Critical states are indicated with yellow and red indicator bars respectively.
Major
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.

Indication Threshold Values

The default Major and Critical indication threshold values can be modified by manually
adding the following System Flags and modifying their values as required.
Table 3-14
Flag
NETWORK_IND_MAJOR_PERCENTAGE
NETWORK_IND_CRITICAL_PERCENTAGE
For more information see "Manually Adding and Deleting System Flags" on page 21-12.

Guidelines

Network Quality icons are displayed for:
•
•
•
3-40
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.
Critical
Network Quality Icon - Indication Threshold Flags
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 icons are displayed by default and can be disabled
— For media transmitted to and received from the Collaboration Server (Video in / Video
out).
Participants displayed in the cells of the conference Video Layout:
— Network Quality icons are not displayed by default and can be enabled
Description
The percentage degradation due to packet loss
required to change the indicator from Normal to
Major.
Default: 1
The percentage degradation due to packet loss
required to change the indicator from Major to
Critical.
Default: 5
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