Description: The value of tmnxOFFlowTableSwitchDefCookie specifies whether to enable
switch-defined cookie encoding or use standard cookie encoding for
this flow-table.

When the value of tmnxOFFlowTableSwitchDefCookie is set to
'disabled (2)', open-flow controller uses standard cookie encoding.

When the value of tmnxOFFlowTableSwitchDefCookie is set to
'enabled (1)', open-flow controller encodes cookie with special
information detailed below:

64          60 59                     32 31                     0
+-------------+-------------------------+-----------------------+
| cookie-type |  switch-defined-cookie  |  standard-flow-cookie |
+-------------+-------------------------+-----------------------+

 Cookie Name  Cookie Type    Cookie Value    Cookie Usage
              (Bits 63..60)  (Bits 59..32)
 -----------  -------------  ------------    -------------------------
 grt          0 0 0 0        0               use this cookie value to
                                             program flowtable rules
                                             to be used in GRT instance

 system       1 0 0 0        0               use this cookie value to
                                             program flowtable rules
                                             to be used in system
                                             filters

 service      1 1 0 0        service-id for  use this cookie value to
                             'vpls' or       program flowtable rules
                             'vprn'          to be used in 'vpls' or
                             services        'vprn' service-types

 
 All other values for the cookie are reserved.