value of cookie insert

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos.ltm) create persistence cookie persist_1 cookie-name cooke1 mirror enabled method insert expiration 0 timeout 3600
01070632:3: Mirroring cannot be enabled on a cookie persistence profile (/Common/persist_1) unless the cookie mode is hash.

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos.ltm) create persistence cookie persist_1 cookie-name cooke1 method insert expiration 0 timeout 3600

root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos.ltm) list persistence cookie persist_1
ltm persistence cookie persist_1 {
    app-service none
    cookie-name cooke1
    expiration 0
    method insert
    timeout 3600
}

root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.19.252:http
    ip-protocol tcp
    mask 255.255.255.255
    persist {
        persist_1 {
            default yes
        }
    }
    pool foo
    profiles {
        http { }
        tcp { }
    }
    snat automap
    vlans-disabled
}

[root@ve11a:Active:Changes Pending] config  curl -I http://172.28.19.252
HTTP/1.1 200 OK
Date: Tue, 03 Jul 2012 10:20:33 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Fri, 11 Nov 2011 14:48:14 GMT
ETag: "4183e4-3e-9c564780"
Accept-Ranges: bytes
Content-Length: 62
Content-Type: text/html; charset=UTF-8
Set-Cookie: cooke1=1707657416.20480.0000; path=/