Star Cascading Topology - Polycom RMX 1500 Administrator's Manual

Star Cascading Topology

Master-Slave Cascading
In the Star topology (as well as in the Basic topology), the MCUs are
usually installed at different locations (states/countries) and participants
connect to their local MCU to facilitate the connection and save long
distance call costs. Star Topology Cascading requires that all cascaded
MCUs reside on the same network.
Although participants in Star Cascading conferences can connect to their local
conference using H.323, SIP and ISDN, the Cascading Links between
conferences must connect via H.323.
Content sharing is available to all conferences over the H.323 Cascading
Link.
In this topology, the MCUs are networked together using two modes:
• Master-Slave Cascading
• Cascading via Entry Queue
It is similar to MIH (Multi Hierarchy) cascading, with only two levels: one
Master MCU on level 1 and several Slave MCUs on level 2.
The cascading hierarchy topology can extend to four levels (Figure 3-3)
and should be deployed according to the following guidelines:
• If an RMX is deployed on level 1:
— RMX systems can be used on level 2
— MGC with version 9.0.4 can be used on level 2 if RMX version
7.0.2 and higher is deployed in level 1
• If an MGC is deployed on level 1:
— MGC or RMX can be used on level 2.
Polycom RMX 1500/2000/4000 Administrator's Guide
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