Cisco 3515 MCU12 설치 및 업그레이드 매뉴얼 - 페이지 11
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Chapter 1
Functionality
About Cisco Unified Videoconferencing 3515 MCU Topologies
The Cisco Unified Videoconferencing 3515 MCU can work in a centralized or cascaded topology. This
section describes these two options.
Centralized Topology
In a centralized topology, the Cisco Unified Videoconferencing 3515 MCU performs media processing
for all connected terminals. The Cisco Unified Videoconferencing 3515 MCU can handle multiple
conferences simultaneously.
Figure 1-2
Site 1
Cascaded Conferences
The Cisco Unified Videoconferencing 3515 MCU allows you to combine two or more conferences
resulting in a larger conference with many more participants. This is called cascading. Cascading creates
a distributed environment that helps reduce the drain on network resources. In addition, the processing
resources required by the Cisco Unified Videoconferencing 3515 MCU are distributed between
participating MCUs. Costly telephone or ISDN line usage can be further reduced with the mediation of
a gateway.
Cascading occurs when one conference with "x" number of participants invites another conference with
"y" number of participants. The two conferences effectively become one large conference. The
bandwidth required across a cascaded conference link is only that of one audio/video stream between
the two conferences. This is significantly less than the accumulated bandwidth of all the participants.
Each separate Cisco Unified Videoconferencing 3515 MCU unit participating in a conference retains
control of its individual conference resources and participants.
Installation and Upgrade Guide for Cisco Unified Videoconferencing 3515 MCU12 and MCU24 Releases 5.6 and 5.7
OL-17012-01
Centralized Topology
Headquarters
MCU
About Cisco Unified Videoconferencing 3515 MCU Topologies
MCU
MCU
Site 2
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