Nortel Web OS 10.0, Application Manual

Page: 398 / 482

Web OS 10.0 Application Guide
398
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Chapter 15: Content Intelligent Switching
212777-A, February 2002
3. Configure the parameters and file extensions that bypass WCR.
The switch is preconfigured with a list of 13 noncacheable items:
n
Dynamic content files: Common gateway interface files (.cgi), cold fusion files (.cfm),
ASP files (.asp), BIN directory, CGI-BIN directory, SHTML (scripted html), Microsoft
HTML extension files (.htx), executable files(.exe)
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Dynamic URL parameters: +, !, %, =, &
a) Add or remove expressions that should not be cacheable.
b) Enable/disable ALLOW for non-GETS (such as HEAD, POST, and PUT) to the ori-
gin server, as described below.
o
Ena:
The switch allows all non-GET requests to the origin server.
o
Dis
: The switch compares all requests against the expression table to determine
whether the request should be redirected to a cache server or the origin server.
c) Enable/disable cache redirection of requests that contain “
cookie:
” in the HTTP
header.
o
Ena
: The switch redirects all requests that contain “cookie:” in the HTTP header to
the origin server.
o
Dis
: The switch compares the URL against the expression table to determine
whether the request should be redirected to a cache server or the origin server.
d) Enable/disable cache redirection of requests that contain “
Cache-control:no
cache
” in the HTTP 1.1 header or “
Pragma:no cache
” in the HTTP 1.0 header
to the origin server.
o
Ena
: The switch redirects all requests that contain
Cache-control: no cache
in the HTTP 1.1 header or
Pragma:no cache
in the HTTP 1.0 header to the origin
server.
o
Dis
: The switch compares the URL against the expression table to determine
whether the request should be redirected to a cache server or the origin server.
>> # /cfg/slb/layer7/redir/add|remove <
expression
>
>> # /cfg/slb/layer7/redir/urlal ena|dis
>> # /cfg/slb/layer7/redir/cookie ena|dis
>> # /cfg/slb/layer7/redir/nocache ena|dis