RE: Upper boundary of Adaptation Layers
Stanislav Ivanovich <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Message-ID | <[email protected]> |
Barry, Which entitiy controls the start and removal of application from traffic? Is it MTP/SCCP or User Parts/SCCP-users? When for example SCCP-user requests N-STATE_request which is to be translated into ASP-INACTIVE who controls the AS state? Is it SUA "layer" or SCCP-user application? regards/ Stanislav Barry Nagelberg <[email protected]> wrote: Ilie, Your summary of the current architecture is mostly correct. The most important part of your summary is that "SIGTRAN supports existing SCCP/MTP users without them being aware of the fact that SIGTRAN is used for the transport of messages." This is the entire reason for the existance of SIGTRAN. SIGTRAN is a bridging mechanism designed to allow legacy SCCP/MTP3 users to take advantage of cheap IP transport without having to modify their legacy protocol stacks. Any attempt to make SCCP/MTP3 users aware of SIGTRAN would make SIGTRAN almost worthless. Barry Nagelberg Adax, Inc. -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of Ilie Glib Sent: Monday, January 09, 2006 10:07 AM To: SIGTRAN Subject: [Sigtran] Upper boundary of Adaptation Layers Hello Folks, In my current understanding of the SIGTRAN: - SUA and M3UA RFCs define the primitives of the adaptation layers towards their users in Section "1.6.1. Definition of the upper boundary". SUA and M3UA RFCs simply refer to ITU-T and ANSI standards for the complete definition of the primitives towards the users, therefore SIGTRAN supports existing SCCP/MTP users without them being aware of the fact that SIGTRAN is used for the transport of messages. SIGTRAN concepts and the corresponding entities/objects like AS, RK, RC, IPSP, ASP, and SGP are not part of the currently standardized upper boundary of M3UA (SUA). Thus today's SIGTRAN users do not know anything about those concepts. Can you please confirm this view or tell me if I'm mislead by my interpretation ? Is their any attempt in SIGTRAN WG to define an extended upper boundary for xxUA that gives the option of managing entities like AS, RK, RC, IPSP, ASP, and SGP to xxUA users and what are the enhanced services expected from adaptation layers ? Thank you in advance -- Ilie _______________________________________________ Sigtran mailing list [email protected] https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list [email protected] https://www1.ietf.org/mailman/listinfo/sigtran --------------------------------- Yahoo! DSL Something to write home about. Just $16.99/mo. or less _______________________________________________ Sigtran mailing list [email protected] https://www1.ietf.org/mailman/listinfo/sigtran