Load Balancing
Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
Hardware load balancing is supported in production environments for server roles as specified in this section. Software-based network load balancing, including Windows Network Load Balancing, is not supported for any Office Communications Server 2007 server roles.
The following Office Communications Server roles are supported for hardware load balancing:
Enterprise Edition servers in an Enterprise pool in a consolidated configuration
Enterprise Edition servers in an Enterprise pool in an expanded configuration (IIS Servers and Front End Servers only. A single load balancer can be used for both, or separate hardware load balancers can be deployed for the Web server and the Front End Server.)
Conferencing servers in expanded configuration.
Edge servers, depending on configuration. For details, see Perimeter Network earlier in this guide.
Directors
Hardware Load Balancing Configuration
Supported hardware load balancing configurations are identified in this section.
Office Communications Server 2007
Hardware load balancing is supported and required for the following configurations:
Enterprise pool topologies identified earlier in this guide
Two or more Standard Edition servers configured as a Director array
Two or more Access Edge Servers
Communicator Web Access (2007 release)
Hardware load balancing is supported and required for the following configurations:
Two or more Communicator Web Access servers that serve the same types of users (internal only, external only, or both internal and external)
Two or more reverse proxies