ASP vs IPSP

"Philippe Huvet I \(MA/ESF\)" <[email protected]>
Newsgroups gmane.ietf.sigtran
Message-ID <4195E435D262F94BB7847A77D8920BB1CF05A2@esealmw114.eemea.ericsson.se>
Hello Sigtran forum,

In RFC3332, it exists the following diagram:

******************************************************************
1.5.3 Example 3: SGP Resident SCCP Layer, with Remote ASP

      ********   SS7   *****************   IP   ********
      * SEP  *---------*               *--------*      *
      *  or  *         *      SGP      *        * ASP  *
      * STP  *         *               *        *      *
      ********         *****************        ********

      +------+         +---------------+        +------+
      | SCCP-|         |     SCCP      |        | SCCP-|
      | User |         +---------------+        | User |
      +------+           |   _____   |          +------+
      | SCCP |           |  |     |  |          | SCCP |
      +------+         +------+-+------+        +------+
      | MTP3 |         | MTP3 | | M3UA |        | M3UA |
      +------|         +------+ +------+        +------+
      | MTP2 |         | MTP2 | | SCTP |        | SCTP |
      +------+         +------+ +------+        +------+
      |  L1  |         |  L1  | |  IP  |        |  IP  |
      +------+         +------+ +------+        +------+
          |_______________|         |______________|

*******************************************************************

Does it make any sense to put it this way ?


      ********   SS7   *****************   IP   ********
      * SEP  *---------*        *      *--------*      *
      *  or  *         *   SEP  * IPSP *        * IPSP *
      * STP  *         *        *      *        *      *
      ********         *****************        ********

      +------+         +---------------+        +------+
      | SCCP-|         |     SCCP      |        | SCCP-|
      | User |         +---------------+        | User |
      +------+           |   _____   |          +------+
      | SCCP |           |  |     |  |          | SCCP |
      +------+         +------+-+------+        +------+
      | MTP3 |         | MTP3 | | M3UA |        | M3UA |
      +------|         +------+ +------+        +------+
      | MTP2 |         | MTP2 | | SCTP |        | SCTP |
      +------+         +------+ +------+        +------+
      |  L1  |         |  L1  | |  IP  |        |  IP  |
      +------+         +------+ +------+        +------+
          |_______________|         |______________|
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