Configuration recommendations
Updated: July 31, 2012
Applies To: Unified Access Gateway
After publishing Exchange through the Forefront Unified Access Gateway (UAG) portal, you should make sure that it is sized correctly for your intended deployment.
The following tables provide the recommended settings that you should apply for Outlook Web Access (OWA) or Outlook Anywhere.
Configuration recommendations for OWA (without Outlook Anywhere)
| Parameter and location | Description | Default value | Recommended value | Maximum value |
|---|---|---|---|---|
Maximum connections In the Forefront UAG Management console, next to Configure trunk settings, click Configure. |
Configures the maximum number of connections to the Forefront UAG. |
100,000 |
4*N where N is the estimated number of concurrent users. |
1,000,000 |
Maximum concurrent sessions In the Forefront UAG Management console, next to Configure trunk settings, click Configure, and then on the Advanced Trunk Configuration dialog box, click the Session tab. |
Configures the maximum number of concurrent sessions to the Forefront UAG. |
100,000 |
4*N where N is the estimated number of concurrent users. |
1,000,000 |
Configuration recommendations for Outlook Anywhere
| Parameter and location | Description | Default value | Recommended value | Maximum value |
|---|---|---|---|---|
Maximum connections In the Forefront UAG Management console, next to Configure trunk settings, click Configure. |
Configures the maximum number of connections to the Forefront UAG. |
100,000 |
30*N where N is the estimated number of concurrent users. |
1,000,000 |
Maximum concurrent sessions In the Forefront UAG Management console, next to Configure trunk settings, click Configure, and then on the Advanced Trunk Configuration dialog box, click the Session tab. |
Configures the maximum number of concurrent sessions to the Forefront UAG. |
100,000 |
30*N where N is the estimated number of concurrent users. |
1,000,000 |
HKEY_LOCAL_MACHINE\SOFTWARE\WhaleCom\e-Gap\Von\UrlFilter\Comm\SSL\MaxSSLBuffers |
Configures the maximum number of encrypted (TLS) buffers received from the back end server. |
100,000 |
30*N where N is the estimated number of concurrent users. |
|
HKEY_LOCAL_MACHINE\SOFTWARE\WhaleCom\e-Gap\Von\UrlFilter\ConcurrentRequestsLimit |
Configures the IIS to accept the required number of connections. |
200,000 |
30*N + 50000 where N is the estimated number of concurrent users. |