Polycom realpresence 1800 Administrator's Manual page 811

The MCMS System Flags
Flag
LPR_CONTENT_RATE_ADJUST_
WEAK_LPR
LYNC_AVMCU_1080p30_ENCODE
_RESOLUTION
Polycom®, Inc.
Description
When LPR is initiated by an endpoint in an AVC-CP conference
due to experienced packet loss, the MCU reduces video rate
(minimum is 64K) to avoid exceeding bandwidth.
At times, further reduction is required to preserve the bandwidth,
which is regulated by this system flag.
Set this flag valustep e to YES, to enable H.323 endpoints to
reduce their content rate or LPR strength as follows:
• For single MCU conferences:
 VSW content - Drop content rate upon packet loss
condition.
 Transcoding - Drop content rate upon packet loss condition
for the protocol used by the endpoint experiencing the
packet loss.
• For cascaded conferences:
 VSW content - Decrease LPR strength (from 5% to 2%).
 Transcoding:
If packet loss occurs at one of the local endpoints, drop
content rate upon packet loss condition for the protocol
used by the endpoint experiencing the packet loss.
If packet loss occurs at the cascaded link, Decrease LPR
strength (from 5% to 2%).
If you set this flag to NO, the content rate is not reduced, and MCU
packet loss protection is guaranteed for 5%.
Range: YES / NO
Default: NO
Notes:
• No system restart is required for this flag new value to take
effect.
• This flag should not be set to YES in systems using TIP
conferencing.
MS AV MCU Cascade deployment supports HD1080p30 video
resolution according to the settings of this flag only if Video
Optimized mode is selected.
Range: YES / NO
Default: NO
• NO—Video streams sent to and received from the MS AV MCU
are HD720p30, SD, and CIF.
• YES—Video streams sent to the MS AV MCU are HD1080p30,
SD, CIF. Video streams received from the MS AV MCU are
720p30,SD, and CIF.
For more information see
in Lync 2013 AVMCU Cascade.
System Configuration Flags
Video Resource Requirement Selection
Add?
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