Irule to restrict number of concurrent sessions to 200

Can you not set it up in the VIP itself? I mean why irule?

Hi,sorry a bit new to this field..if not irule which option i need to select and put the value 200. But why irule is because we dont want manual intervention at the time of the unplanned activities. We will create and irule and place it offline into the lb. Whenever we need we will juat push the same from the batch script.

Here is the irule, you can modify as you need

 From http://devcentral.f5.com/wiki/iRules.table.ashx
 Limit each client IP address to 20 concurrent connections
when CLIENT_ACCEPTED {

    Set a subtable name with a standard prefix and the client IP
   set tbl "connlimit:[IP::client_addr]"

    Use a key of the client IP:port
   set key "[IP::client_addr][TCP::client_port]"

    Check if the subtable has over 20 entries
   if { [table keys -subtable $tbl -count] > 20 } {
      reject
   } else {

       Add the client IP:port to the client IP-specific subtable 
         with a max lifetime of 180 seconds
      table set -subtable $tbl $key "ignored" 180
   }
}

when CLIENT_CLOSED {
    When the client connection is closed, remove the table entry
   table delete -subtable $tbl $key
}

For the virtual server settings http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-implementations-11-2-1/30.html

Sorry to say that PK Bhatia: the mentioned Irule is not working. This is restricting the connections limit: let's say for example 20 for each and every IP.

Hi Team,

Kindly guide whether the below Irule will work ? ================== https://devcentral.f5.com/wiki/iRules.virtual_server_connection_limit_with_HTTP_response.ashx?lc=1

Thanks and Regards PZ