Netscape ENTREPRISE SERVER 6.1 - 08-2002 ADMINISTRATOR Administrator's Manual page 222

Using Quality of Service
Choose the Metric Interval.
5.
The metric interval is the interval in seconds during which the traffic is
measured. The default is 30 seconds. All bandwidth measured during this time
is averaged to give the bytes per second.
If your site has a lot of large file transfers, use a large value (several minutes or
more) in this field. A large file transfer might take up all the allowed
bandwidth for a short metric interval, and result in connections being denied if
you've enforced the maximum bandwidth setting. Since the bandwidth is
averaged by the metric interval, a longer interval smooths out spikes caused by
large files.
If the bandwidth limit is much lower than available bandwidth (for example, 1
MB-per-second bandwidth limit but with a 1 GB-per-second connection to the
backbone), the metric interval should be shortened.
Please note that if you have large static file transfers and a bandwidth limit that
is much lower than available bandwidth, you have to decide which situation to
tune for, since the problems require opposite solutions.
Enable quality of service for the server instance and/or the virtual server
6.
classes.
The lower portion of the screen lists the server instance and server classes.
Choose Enable as the action next to the items for which you want to enable
quality of service.
Set the maximum bandwidth, in bytes per second.
7.
Choose whether or not to enforce the maximum bandwidth setting.
8.
If you choose to enforce the maximum bandwidth, once the server reaches its
bandwidth limit additional connections are refused.
If you do not enforce the maximum bandwidth, when the maximum is
exceeded the server logs a message to the error log.
Choose the maximum number of connections allowed.
9.
This number is the number of concurrent requests processed.
Choose whether or not to enforce the maximum connections setting.
10.
If you choose to enforce the maximum connections, once the server reaches its
limit additional connections are refused.
If you do not enforce the maximum connections, when the maximum is
11.
exceeded the server logs a message to the error log.
222 Netscape Enterprise Server Administrator's Guide • August 2002