Polycom 3725-76302-001O 用户手册
Polycom, Inc.
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Site Topology
This chapter describes the following Polycom
®
RealPresence
®
Distributed Media Application™ (DMA
®
)
7000 site topology configuration topics:
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About Site Topology
Site topology information logically describes your network and its interfaces to other networks, including the
following elements:
following elements:
● Site — A local area network (LAN) that generally corresponds with a geographic location such as an
office or plant. A site contains one or more network subnets, so a device’s IP address identifies the
site to which it belongs.
● Network cloud — A Multiprotocol Label Switching (MPLS) network cloud defined in the site topology.
An MPLS network is a private network that links multiple locations and uses label switching to tag
packets with origin, destination, and quality of service (QOS) information.
● Site link — A network connection between two sites or between a site and an MPLS network cloud.
● Site-to-site exclusion — A site-to-site connection that the site topology doesn’t permit a voice or video
● Site-to-site exclusion — A site-to-site connection that the site topology doesn’t permit a voice or video
call to use.
● Territory — A collection of one or more sites for which a Polycom RealPresence DMA cluster is
responsible. Territories serve multiple purposes in a Polycom RealPresence DMA system
deployment. See
The Polycom RealPresence DMA system uses site topology information for a variety of purposes, including
cascade for bandwidth conferences, bandwidth management, Session Border Controller selection, and
cluster responsibility management in a supercluster. It can get it in one of two ways:
cascade for bandwidth conferences, bandwidth management, Session Border Controller selection, and
cluster responsibility management in a supercluster. It can get it in one of two ways:
● If you have a Polycom RealPresence Resource Manager or CMA system, integrate the Polycom
RealPresence DMA system with it (see
automatically get its site topology information.
Note: Network Topology and Site Topology Could Differ
Site topology information provides a logical model representation of a network topology, not
necessarily a fully accurate literal representation of a full network.
Site topology information provides a logical model representation of a network topology, not
necessarily a fully accurate literal representation of a full network.