Chapter 28: PacketCable™ Services and Voice Applications
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved. 814
Figure 99: Foundations of PCMM Architecture
To provide PCMM functionality, the C4/c CMTS must communicate with several other network elements, as defined by
the PCMM architecture. An example of such a network configuration is as follows:
PCMM introduces two new elements: the Application Manager and the Policy Server.
Application Manager (AM) — A system that interfaces to Policy Server(s) for requesting QoS-based service on behalf of an
end-user or network management system. The AM is characterized by the following:
It is analogous to the PC1.x Call Agent.
It is a Common Open Policy Service (COPS) Policy Decision Point (PDP)
It executes the application signaling with the client
It grants or rejects requests for service.
Note: The AM can also be dedicated to other applications, such a gaming. It is not limited to calls only.
Once the AM grants a request to access a service, it sends a request for bandwidth to the Policy Server.
Policy Server (PS) — A system that primarily acts as an intermediary between Application Manager(s) and C4/c CMTS(s). It
applies network policies to Application Manager requests and proxies messages between the Application Manager and
C4/c CMTS. The following are the functions of the PS:
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