Polycom DOC2702A User Manual

Chapter 21-RealPresence Collaboration Server (RMX) Administration and Utilities

Polycom, Inc.

Table 21-4 summarizes the resource capacities of fully configured MCUs with the various 

card types per line rate in VSW Conferencing mode.  

 

The installed media card type (MPM, MPM+ or MPMx) determines the Card Configuration 

Mode, which in turn determines the resource allocation method that can be selected for the 

MCU. The resource allocation method determines how the system resources are allocated to 

the connecting endpoints and it is defined in the Video/Voice Port Configuration. Two 

allocation methods are available:
•

Flexible Resource Capacity™ – This is the default allocation mode that is used in all 

versions and can be used in all Card Configuration Modes and applies to all Conferencing 
Modes (SVC and AVC conferencing). The resources are only set to audio and video as a 

pool and the system allocates the resources according to the connecting endpoints. This 

mode offers flexibility in resource allocation and is available in MPM, MPM+ and 

MPMx Card Configuration Modes.
In Flexible Resource Capacity mode, in MPM, MPM+ and MPMx Card Configuration 

Modes, the maximum number of resources is based on the system license, regardless of 

the hardware configuration of the MCU. These resources are allocated as CIF resources 

by default.
Example: If the MCU is licensed for 80 video resources, but only one MPM card is 

currently installed in the MCU, the system lets you allocate 80 ports although only 40 

video resources are available for participant connection. (However, an active alarm will 

be added to the Active Alarms list indicating a resource deficiency).

•

Fixed Resource Capacity™ – This mode is applies to AVC conferencing only and the 

resources cannot be used for SVC conferencing. It offers precise usage of resources, 

allowing the administrator to set the number of resources guaranteed to each Audio 

Only and video connection type in advance. This mode is available only in MPM+ and 

MPMx Card Configuration Modes.

360

400

800

720

1600

1440

120

400

400

400

400

400

VSW 2Mb

80

80

160

160

320

320

VSW 4Mb

40

40

80

80

160

160

VSW 6Mb

20

Not

Applicable

40

40

80

80

•

MCU’s with 500MB of memory can support a maximum of 400 simultaneous participant calls, 
regardless of how system resources are allocated. 
MCU’s with 1000MB of memory are not subject to this limitation.

•

MCU memory size is listed in the Administration > System Information properties box. For more 
information see "System Information” on page

.