Polycom RMX 1500 Administrator's Manual page 201

• When creating a cascading link between MGCs and RMXs:
— If there are no MGCs on level 2, the MGCs can operate in either
in CP or VSW (Video Switching) mode.
— If there are MGCs on level 2, the MGCs can only operate in VSW
mode.
• When creating a cascading link between two MGCs:
— The MGCs must be configured to operate in VSW mode.
For more details about the MGC to MGC connection, see the MGC
Manager User's Guide, Volume II, Chapter 1, "Ad Hoc Auto Cascading and
Cascading Links".
• To enable the connection of the links between cascaded conferences,
they must run at the same line rate.
The following table summarizes Video Session Modes line rate options that
need to be selected for each conference in the cascading hierarchy
according to the cascading topology:
Table 3-2 MIH Cascading – Video Session Mode and Line Rate
Topology MCU Type
Level 1 RMX
Level 2 RMX
Level 1 RMX
Level 2 RMX
Level 1 MGC
Level 2 RMX
Level 1 MGC
Level 2 RMX
Level 2 RMX
Level 3 MCS 4000
Level 2 RMX
Level 3 MCS 4000
Video Session
Mode
1.5Mb/s, 1Mb/s,
CP - HD
CP - CIF 768Kb/s, 2Mb/s
CP - CIF 263
768Kb/s, 2Mb/s
CP - CIF 264
VSW - HD
VSW HD
1.5Mb/s, 1Mb/s,
CP/VSW -HD
CP - CIF 768Kb/s, 2Mb/s
Chapter 3-Cascading Conferences
Line Rate Endpoint
HDX
2Mb/s
VSX
HDX,
VSX
1.5Mb/s HDX
HDX
2Mb/s
HDX,
VSX
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