Cookie persist Fail with One Virtual server but have many pool (different member too)

Can this irule work? or I need to insert cookie in HTTP response or have to do another rule

    ltm rule /Common/irule_vs_choosepool {
    when HTTP_REQUEST {
   set uri [HTTP::uri]
   if { $uri starts_with "/agent" " } { 
      pool agent_pool
      persist cookie insert agent 0
   }
   elseif { $uri starts_with "/member" } { 
      pool member-pool
      persist cookie insert member 0
   }
   elseif { $uri starts_with "/employer" } { 
      pool employer-pool
      persist cookie insert employer 0
   }
    else {
      pool default-pool
 }

How Can I fix this? like store cookie for each pool (client have cookie_default for pool default and cookie_abc for pool abc so when he access www.domain.com and www.domain.com/abc , he won't lose session)

isn't it default behavior?

When you configure a cookie persistence profile to use the HTTP Cookie Insert or HTTP Cookie Rewrite method, the BIG-IP system inserts a cookie into the HTTP response, which well-behaved clients include in subsequent HTTP requests for the host name until the cookie expires. The cookie, by default, is named BIGipServer. The cookie is set to expire based on the time-out configured in the persistence profile. The cookie value contains the encoded IP address and port of the destination server.

sol6917: Overview of BIG-IP persistence cookie encoding

 configuration

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    persist {
        cookie {
            default yes
        }
    }
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 39
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST {
        switch -glob [string tolower [HTTP::uri]] {
                "/agent*" { pool foo1 }
                "/member*" { pool foo2 }
                default { pool default }
        }
}
}

 test

[root@ve11c:Active:In Sync] config  curl -I http://172.28.24.10/agent/something
HTTP/1.1 404 Not Found
Date: Fri, 24 Apr 2015 04:34:59 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Sun, 09 Feb 2014 08:39:51 GMT
ETag: "41879c-59-2a9c23c0"
Accept-Ranges: bytes
Content-Length: 89
Content-Type: text/html; charset=UTF-8
Set-Cookie: BIGipServerfoo1=1707657416.20480.0000; path=/

[root@ve11c:Active:In Sync] config  curl -I http://172.28.24.10/member/something
HTTP/1.1 404 Not Found
Date: Fri, 24 Apr 2015 04:36:59 GMT
Server: Apache/2.2.3 (CentOS)
Content-Type: text/html; charset=iso-8859-1
Set-Cookie: BIGipServerfoo2=1875429576.20480.0000; path=/

[root@ve11c:Active:In Sync] config  curl -I http://172.28.24.10/something
HTTP/1.1 404 Not Found
Date: Fri, 24 Apr 2015 04:35:11 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Sun, 09 Feb 2014 08:39:51 GMT
ETag: "41879c-59-2a9c23c0"
Accept-Ranges: bytes
Content-Length: 89
Content-Type: text/html; charset=UTF-8
Set-Cookie: BIGipServerdefault=1707657416.20480.0000; path=/

Hi Nitass ,

Sorry I forgot to mention We use custom cookie name in cookie persist profile.

I just found SOL9815 for solution of this issue and my method is the same as method "Specifying in the iRule a unique custom persistence cookie name for each pool"

Problem is application still lose session. So I think we not explicit define pool selection good enough. So There must be some possible condition resulting in a pool selection that we don't know. I will go check the application again.

Thank you very much