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28 Intel NetStructure Cache Appliance Administrator’s Guide
Setting browser auto configuration options
The Autoconfiguration of Browsers section lets you specify an auto
configuration file for the selected node. Web browsers use the appliance by
specifying a preference to use a proxy server, usually through an auto
configuration file.
Note Users must set their browsers to connect to the appliance’s auto configuration
file. For information on setting your browser to use a proxy, such as the
appliance, see your browser documentation. If you are using the transparency
option, you do not need auto configuration files.
The following table describes the section’s options.
Setting throttling of network connections
The Throttling of Network Connections section lets you set a limit on the
number of connections the appliance can have. Setting limits on the connections
helps to prevent system overload when traffic bottlenecks develop. When
network connections reach the limit, new connections are queued until existing
connections close.
Note This section is available only if transparency is disabled. If you enable
transparency, you do not see this option. See Configuring load-shedding‚ on
page 28 for information about the transparency load shedding option.
The following table describes the section’s options.
Configuring load-shedding
The Load Shedding section lets you configure how the appliance handles
overloaded conditions.
When transparency is enabled, the appliance handles overload conditions by
forwarding a percentage of new requests to origin servers. You can configure the
appliance to automatically shed load if the HTTP-hit transaction times become
too long. For example, suppose that the lower limit for HTTP hit-transaction time
is 500 milliseconds and the upper limit is 1000 milliseconds. Given these limits,
the following is true:
✔ If it takes the appliance more than 500 milliseconds to serve a fresh hit, it
begins to shed load.
Option Description
Autoconfiguration
file
Allows you to create or edit an auto configuration file.
Option Description
Maximum Number
of Connections
Specifies the maximum number of connections that the
appliance can have.