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Micha__Iwaszko_'s avatar
Micha__Iwaszko_
Icon for Nimbostratus rankNimbostratus
Jul 16, 2009

General LTM design question.

A quick question about a "general LTM design" and how it works with HTTP traffic. For example, if we receive a big POST that does not fit in one packet does the LTM do a store-and-forward buffering jo...
config
design
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jul 16, 2009
If you add an HTTP profile to a virtual server, LTM will try to parse the HTTP headers before opening / reusing an existing serverside connection. So HTTP_REQUEST is triggered once the HTTP headers are parsed. If you force buffering of the request payload with HTTP::collect, then LTM will collect the payload. HTTP_REQUEST_DATA is triggered once the amount of data specified in the HTTP::collect command has been collected. If you do not force buffering of the payload, LTM will send the request to the pool member after HTTP_REQUEST without buffering the payload and HTTP_REQUEST_DATA will not be triggered.

 

 

For more info you can check the events wiki page or reply here

 

 

iRule events

 

http://devcentral.f5.com/wiki/default.aspx/iRules/events

 

 

Aaron