Assign a priority to a domain

To assign a priority to a domain

In the console tree of ISA Server Management, click General.
In the details pane, click Specify Diffserv Preferences.
On the Domains tab, click Add.
In the Add Domain Priority dialog box, do the following:
- In Domain, type a domain to prioritize.
- In Priority, select the priority to assign to the specified domain.

Notes

To open ISA Server Management, click Start, point to All Programs, point to Microsoft ISA Server, and then click ISA Server Management.
For ISA Server 2006 Enterprise Edition, expand Microsoft Internet Security and Acceleration Server 2006, expand Arrays, expand Array_Name, expand Configuration, and then click General.
For ISA Server 2006 Standard Edition, expand Microsoft Internet Security and Acceleration Server 2006, expand Server_Name, expand Configuration, and then click General.

Important

Packet prioritization using Diffserv works in networks whose routers support Quality of Service (QoS) functionality.
Uniform Resource Locator (URL) priorities listed on the URLs tab will be used by ISA Server to apply Diffserv bits for content that can be inspected by ISA Server (content that has not been tunneled). Content that has been tunneled over HTTPS cannot be inspected, and the URL cannot be known, so ISA Server will apply Diffserv bits to domains, which you specify on the Domains tab.
After you add domains, you can use the UP ARROW and DOWN ARROW keys to order them. This allows you to apply priorities to specific domains. For example, you may want to apply a high priority to mail.contoso.com, and a lower priority to the rest of the domain, *.contoso.com. For the priorities to be applied correctly, mail.contoso.com must be higher on the list. Otherwise, the requests for mail.contoso.com will get to the *.contoso.com entry and have the lower priority applied before the mail entry is reached.