Virtual Current Connection Parameter ?

Hi Alex,

 

I haven't found a better way then what other's have posted already for you specific scenerio. If you want something straight forward, w/o effort, there is a setting on the virtual server for limitting concurrent connections.

 

 

/CB

 

Hi,

 

 

I find nice iRule that will limit connections.

 

Someone knows what will the load on f5 with this script ? I am planning to limit one of the virtuals to 14000 connections and redirect all new connection to another url.

 

 

 

 

I want to use this script:

 

rule session_limit {

 

when RULE_INIT {

 

set ::total_active_clients 0

 

set ::max_active_clients 50

 

}

 

when HTTP_REQUEST {

 

; If persistence cookie already exists,

 

; allow persistent connection without incrementing counter

 

if { [HTTP::cookie exists "BIGipServerhalifax"] } {

 

pool halifax

 

return

 

; If no cookie, check for URI link parameter

 

; & redirect if present

 

} else {

 

if { [HTTP::uri] contains "linkID=halifax" } {

 

HTTP::redirect "http://pleasehold.evenue.net/bigip/nocookies.html"

 

return

 

}

 

; Still no cookie

 

; Check limit vs. active

 

; Allow in if there's room, and incr counter for this new cnx

 

if { $::total_active_clients < $::max_active_clients } {

 

incr ::total_active_clients

 

pool halifax

 

return

 

; otherwise redirect

 

} else {

 

HTTP::redirect "http://www.yahoo.com/"

 

return

 

}

 

}

 

}

 

when CLIENT_CLOSED {

 

incr ::total_active_clients -1

 

}

 

}

 

 

 

Is there any other recommended script to limit connection on virtual ?

 

 

 

Thanks,

 

Alex Webs

Hi,

 

 

You have an article about how to evaluate performance of an iRule on a BIGIP: Click here

 

 

Otherwise this script may be the best method to evaluate how many connections you have on a VS.

 

 

HTH