In the console tree of ISA Server Management, click
In the details pane, click Specify Diffserv
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
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
For ISA Server 2006 Standard Edition, expand Microsoft
Internet Security and Acceleration Server 2006, expand
Server_Name, expand Configuration, and then
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
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