Signalling Connection Control Part: Difference between revisions

Revision as of 15:56, 15 May 2007

Revision as of 09:58, 18 May 2007

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===Class 0: Basic connectionless===

The SCCP Class 0 service is the most basic of SCCP transports. Network Service Data Units passed by higher layers to the SCCP in the originating node are delivered by the SCCP to higher layers in the destination node. They are transferred independently of each other. Therefore, they may be delivered to the SCCP user out-of-sequence. Thus, this protocol class corresponds to a pure [[connectionless protocol| connectionless network service]]. As a connectionless protocol, no transport-level dialog is established between the sender and the receiver.

===Class 1: Sequenced connectionless===

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==Transport over IP Networks==

In the [[SIGTRAN]] suite of protocols, there are two primary methods of transporting SCCP applications across [[Internet Protocol]] networks: SCCP can be transported directly using the ''MTP level 3 User Adaptation'' protocol (M3UA), a protocol which provides support for users of MTP-3—including SCCP. Alternatively, SCCP applications be operate over the ''SCCP User AdapationAdaptation'' protocol (SUA) which is a form of modified SCCP designed specifically for use in IP networking.

== References ==