Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 282)

266 Brocade Virtual ADX Server Load Balancing Guide
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Sample configurations
5
Offset 0 points to "\r", which is the next byte after "www.example5.com" in the value of "Host"
header, "www.foo.com".
Sample configurations
The HTTP URL Rewrite feature allows the Brocade Virtual ADX to dynamically rewrite URL content in
an HTTP request. Also, the HTTP URL Rewrite options allow you to insert, delete, and replace URL
content at any offset in an HTTP request.
Seamlessly integrated with Brocade Virtual ADX content switching (CSW), the HTTP URL Rewrite
can be configured as a dependent action for primary CSW actions. However, only Forwards and
Persists are typically used for HTTP URL Rewrite actions on HTTP requests, because the other
actions do not pass requests to servers.
Before you configure an HTTP URL Rewrite, you should be aware of the following benefits and
restrictions for this feature:
• You can configure HTTP URL Rewrite and CSW on HTTP, SSL, or any unknown port.
• HTTP URL Rewrite supports HTTP 1.1 Keepalive and TCP Offload.
• HTTP URL Rewrite is an extension of CSW.
• You define HTTP URL Rewrite actions under a CSW policy.
• Before you define an HTTP URL Rewrite action, you must define a primary CSW action.
• For each matched CSW rule, you can only define one primary action.
• An HTTP URL Rewrite action works only with a primary action that passes client requests to the
servers, such as Forward or Persist actions.
• You can define multiple dependent CSW actions that work together with a primary CSW action.
• Dependent CSW actions include HTTP URL Rewrite, log, client-ip insertion, header insertion,
cookie insertion, and deletion.
• HTTP URL Rewrite supports nested CSW rules.
• To enable HTTP URL Rewrite under a VIP, you must enable CSW.
• HTTP URL Rewrite cannot be configured as a default action.