Cisco Cisco TelePresence Video Communication Server Expressway

Introduction 

OCS systems have a number of building blocks, and so OCS systems may be constructed in many 
ways. 

A full scale OCS deployment is likely to use OCS Director, Hardware Load Balancers (HLBs), Front 
End Processors (FEPs) in enterprise pools, and a redundant AD server. For example: 

 

A smaller deployment may not use OCS Director servers, but may just use a Hardware Load Balancer 
in front of a set of Front End Processors. 

 

 

The simplest deployment will have AD and FEP on a single server, with no Hardware Load Balancer 
needed as OCS is a single server. 

OCS deployments may also contain Edge servers to allow MOC clients to register from outside the 
local network through the Edge server to OCS.  This is not shown in the diagrams above, because 
currently the Cisco VCS implementation only supports interoperation with MOC devices directly 
registered to OCS. 
 

Cisco VCS Deployment Guide: Microsoft OCS 2007 R1 and R2 and Cisco VCS X5.2 

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