Nortel Networks NN43001-121 manual OCS Proxy server installation

OCS Proxy server installation 107

Office Communications Server (OCS ) 2007 Enterprise Pool

OCS 2007 Enterprise Edition is designed for large-scale deployment where multiple Office Communications Server Enterprise Edition servers are deployed as a pool, typically behind a load balancer. Servers in the pool share a central SQL back end database server that stores user data.

If your pool consists of more than one server, a Load Balancer is required. If your pool consists of only one server, which is connected to a separate SQL back end database server, a Load Balancer is not required.

OC clients register on an Enterprise pool. The client user is directed to a specific server within the pool by a hardware load balancer that distributes the load to these servers. Static data, such as contact lists and access control lists (ACLs), are stored as persistent data on the back end database server.

A client can have multiple concurrent connection instances and can register on multiple servers at the same time. Each device to which the client is logged on (called an endpoint) can be connected through a different server at the same time.

The load balancer exposes a single Virtual Internet Protocol (VIP) address that is used by the clients to access the pool. Each Enterprise Edition server within the pool is responsible for connection processing, security and authentication, protocol processing, and server applications. The user data resides in the back end database server. The database contains records that hold static data and dynamic user data (such as endpoints and active descriptions for a user). The database runs a set of stored procedure calls that form the core of the operational software. Office Communications Servers within the pool are networked to the back end database server using a high-speed network. These Office Communications Servers also run User Replicator (UR) software to provide a connection to the Microsoft Active Directory service so that user account information can be synchronized between the back end database server and the Active Directory.

For more information about Office Communications Server 2007 Enterprise Edition, see the Office Communications Server 2007 Document: Enterprise Edition Deployment Guide. Download Microsoft technical documentation from the Download Center at www.microsoft.com.

OCS Proxy server installation

The following section describes the OCS Proxy server installation procedures.

Nortel Communication Server 1000

Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007

NN43001-121 01.03 Standard

Release 5.0 30 April 2008

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