Polycom 3725-76302-001O manual Sites

Site Topology

Note: Integration Not Supported in Maximum Security Mode

Integration with a Polycom RealPresence Resource Manager or CMA system is not supported in Maximum security mode.

●If you don’t have a Polycom RealPresence Resource Manager or CMA system, enter site topology information about your network directly into the Polycom RealPresence DMA system’s site topology pages.

If your Polycom RealPresence DMA system is superclustered (see About Superclustering on page 226), site topology data only needs to be created (or obtained from a Polycom RealPresence Resource Manager or CMA system) on one cluster of the supercluster. It’s replicated across the supercluster.

For a conference with cascading for bandwidth enabled, the Polycom RealPresence DMA system uses the site topology information to route calls to the nearest eligible MCU (based on pools and pool orders) that has available capacity and to create the cascade links between MCUs.

When determining which MCU is “nearest” to a caller and which path is best for a cascade link, the system takes into account the bandwidth availability and bit-rate limitations of alternative paths.

Note: Cascade Considerations

Cascading for bandwidth uses a hub-and-spoke configuration so that each cascaded MCU is only one link away from the “hub” MCU, which hosts the conference. The conference is hosted on the same MCU that would have been chosen in the absence of cascading, using the pool order applicable to the conference. See MCU Pool Orders on page 145.

The cascade links between MCUs must use H.323 signaling. For conferences with cascading enabled, the Polycom RealPresence DMA system selects only MCUs that have H.323 signaling enabled.

This cascade link requirement doesn’t affect endpoints, which may dial in using SIP (assuming the MCUs and the Polycom RealPresence DMA system are also configured for SIP signaling).

See also:

Site Links on page 291

Site-to-Site Exclusions on page 293

Territories on page 294

Network Clouds on page 297

Site Topology Configuration Procedures on page 299

Sites

The Sites page contains a list of the sites defined in the site topology.

If the system is integrated with a Polycom RealPresence Resource Manager or CMA system, it receives this information from that system, and this page is read-only. If not, you can enter site information.

The default Internet/VPN entry always exists and can’t be edited or deleted. It can’t be assigned to a territory or controlled by a cluster. Endpoints whose subnet isn’t in any defined site in the enterprise network are considered to be in the Internet/VPN site. They can register to a cluster only if site-less registrations are allowed (see Registration Policy on page 264).

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