Throttling Bandwidth

If the network connection used by your Web server is also used by other services such as e-mail, you may want to limit the bandwidth used by your Web server so bandwidth is available for the other services. You can throttle only the bandwidth used by static HTML files.

To determine how much bandwidth your server is using

Use System Monitor to examine the Bytes Total/sec or Current Bandwidth counter in the Network Interface object. (If you want to compare incoming and outgoing traffic, you can examine both Bytes Sent/sec and Bytes Received/sec.)
Compare the values with the total bandwidth of your network connection. With a normal load, your server should not use more than 50 percent of its total available bandwidth. If your server is subject to large peaks or extreme spikes, it's a good idea to keep the normal load even lower than 50 percent. The remaining "headroom" bandwidth is used during peak periods.

To throttle the bandwidth used by IIS

In the IIS snap-in, select the computer running IIS.
On the Internet Information Services property sheet, select the Enable Bandwidth Throttling check box.
In the Maximum Network Use box, type the maximum number of kilobytes per second (KBps) you want to be used by IIS.

Related Topics

For a information about monitoring tools, see About Performance Tuning.
For a list of counters provided by IIS, see Counters Reference.