Coyote Point Systems Equalizer Especificaciones descargar pdf (Pagina 337)

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Using Responders in Match Rules

Responders are used to send automated responses to clients when all the server pools in a match rule are down.

See "Automatic Cluster Responders" on page 347 for a complete description of Responders as well as examples

of using Responders in Match Rules.

Example Match Rules

The Related Topics navigate to examples of how to create a few of the most commonly used types of match rules.

Parsing the URI Using Match Rules

In this example, we want to direct requests to a pool of specific server pools based on the hostname used in the

URI contained in the request. We want all requests for URIs that start with “support” to go to one server pool, and

all other requests that do

not

match this rule to be load balanced across all server pools in the cluster.

To do this, we will construct one match rule that parses the URI; if the URI contains the string “support”, it

forwards the request to the server pool sv_support. For this example, we assume that a cluster with server pools

has already been defined.

1. Log into the GUI using a login that has add/del access for the cluster.

2. In the left frame, right-click the name of the Layer 7 cluster to which you want to add the rule, and select

Add Match Rule. The Add Match Rule dialog appears:

a. Type a name into the Match Rule Name field. In this case New Match Rule was added.

b. Select the Next Match Rule from the drop-down list to determine the placement of New

Match Rule in the order of processing. In this case test was selected.

c. Click on Commit. If test was selected as the Next Match Rule it will appear beneath Test in

the navigation pane on the left.

The match rule is created, added to the navigation pane on the left, and its Configuration tab is opened. Refer to

"Using the Match Rule Expression Editor" on page 344 for further descriptions on using the Expression Editor.

3. Click on the Expression Editor button and drag and drop host_prefix from the drop-down box in the

Functions pane into the Expression Workbench pane.

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