What can I do to troubleshoot the performance or accessibility of an HTTP web site?

Solution

Overview

The ProxySG has many performance features to accelerate Web performance. Sometimes, these optimizations can affect the performance or accessibility of some Web sites. 

The following CPL disables most of these optimization features.

<proxy>
Condition=TestIP http.client.persistence(no) http.server.persistence(no) bypass_cache(yes) authenticate(no)   detect_protocol(none) http.request.version(1.0) http.response.version(1.0) server_url.dns_lookup (ipv4-only)

To Install the CPL.

The local policy file gives you the ability to add CPL based policy in addition to your visual policy manager (VPM) policy.  Sometimes Blue Coat Technical Support may ask that local policy be implemented so that troubleshooting or diagnostic data may be obtained.  Or a solution to your issue may be solved by a few lines of CPL.  Here are the steps to go in and edit the local policy file:

  1. Launch and log into the Management Console on your ProxySG.  The URL for the Management Console is https://<ip.address.of.proxysg>:8082/ .
  2. Click on the Configuration tab > Policy > Policy files > Policy files tab. 
  3. There is an "Install policy" section where you can install policy from a local file, forward file, and central file.
  4. Select "Text Editor" from the drop down list to the right of "Install Local file from:" text.  Click on the Install button to the right of that drop down box.
  5. If this is a new proxy deployment, your local policy may be blank.  If this is an established proxy with local policy, scroll down to the bottom of the data contained in the text editor.
  6. Copy and paste the CPL text that you received from your support person.  Click on the Install, OK, and Close buttons in that order.  Click on the Apply button.  Your new policy has been installed.

Also disables RFC 1323 which will help to reslove the issue. (Please see 000015466 or 000013651 for additional details)

config)tcp-ip rfc-1323 disable    ;  

; detect_protocol(none) should do the following three commands and more
;#(config)streaming quicktime http-handoff disable
;#(config)streaming real-media http-handoff disable
;#(config)streaming windows-media http-handoff disable
 

 

 

Cause
Resolution
Workaround
Additional Information
Bug Number
InQuira Doc IdFAQ1460
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