User's Manual

Chapter 21-Collaboration ServerAdministration and Utilities
Polycom, Inc. 21-23
MCU Resource Management by RealPresence Resource Manager (XMA),
Polycom CMA and Polycom DMA
When the RealPresence Resource Manager (XMA), Polycom CMA and Polycom DMA are
part of the solution, following a request by the RealPresence Resource Manager (XMA),
Polycom CMA or Polycom DMA, the MCU will send updates on resource usage to both
CMA and DMA, with each application updating its own resource usage for the MCU. This
provides better management of the Collaboration Server resources by the RealPresence
Resource Manager (XMA), Polycom CMA and Polycom DMA.
Guidelines
• Resource usage updates from RMX to the CMA and DMA are supported only with
RMXs with MPM+ or MPMx cards.
•
Both Flexible Resource Capacity™ and Fixed Resource Capacity™ modes are supported
with DMA.
•
Only Flexible Resource Capacity™ mode is supported with CMA.
•
Following requests sent by CMA and DMA, the Collaboration Server will send the
number of occupied resources for a conference or total for the MCU, according the
Resource Capacity Mode used by the system.
—
In Flexible Resource Capacity Mode, CMA/DMA receive information about how many
Video (CIF) and Audio resources are occupied per conference or MCU according the
request type sent by the CMA and DMA.
—
In Fixed Resource Capacity™ Mode, DMA receives information about the number of
occupied resources per resource type (Audio Only, CIF, SD, HD 720p, HD 1080p)
and per conference or MCU according the request type sent by the DMA.
•
Occupied resources are resources that are connected to ongoing conferences.
Disconnected endpoints in an ongoing conference are not counted as occupied
resources.
•
An ongoing conference that does not include participants and the Send Content to Legacy
Endpoints option is disabled does not occupy resources. If the Send Content to Legacy
Endpoints option is enabled, the conference occupies one SD resource.
•
The Collaboration Server is unaware of the resource usage split between the CMA and
DMA.
Port Usage Threshold
The Collaboration Server can be set to alert the administrator to potential port capacity
shortages. A capacity usage threshold can be set as a percentage of the total number of
licensed ports in the system.
When the threshold is exceeded, a System Alert is generated.
The default port capacity usage threshold is 80%.
The administrator can monitor the MCU’s port capacity usage via the Port Gauge
s in the
Status Bar of the Collaboration Server Web Client.