SIGTRAN Stack; SCTP Overview; M2PA Adaption Layer; M2UA Adaption Layer; M2UA vs M2PA Adaption; M3UA Adaption Layer; SUA. M3UA. M3UA is a protocol for interfacing legacy SS7 networks with IP. M3UA – MTP3 User Adaptation Layer . . M3UA protocol tutorial. We have got understanding of sigtran. Sigtran have M3UA adaptation layer for sending and receiving ss7 messages.

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Cannot support ISUP services. Each user application might be assigned its own stream virtual connection. This local PSP is created automatically, not configured. If multiple protocol variants network definitions or multiple upper layers must be supported on the same M3UA instance same boardan NSAP is required for each SIO value and protocol variant.

A routing key defines the range of signaling traffic to be handled by a particular peer server. MTP3 routes from point code to point code. Allows for messages to be delivered in the order in which there were sent. Each peer server serves a specific routing key. SCTP uses periodic heart-beat messages to confirm the status of each end point.

M3UA – Wikipedia

Automatically reroutes traffic in the case of failure or congestion. Interface to the higher and lower SS7 layers. Routes messages to their IP destinations.


Defined by RFC Please take the time from a busy life to ‘mail us’ at top of screenthe webmaster below or info-support at zytrax. M3UA uses a flexible configuration capable of supporting a wide variety of network routing and addressing requirements. View the status of the SCTP association by which the remote peer signaling process is reachable. SG is an SS7 node with tutoril point code. There is a one-to-one relationship between a peer server and a routing key.

A single IP port number is j3ua across the entire address list at an endpoint for a specific session. F or more information, see M3UA management function summary. Messages are handled from point code to point code.

For more information, see M3UA management function summary. A peer server PS is a logical entity on the IP network, such as a virtual switch or a database element, that is served by one or more peer signaling processes PSPs. It performs these primary tasks:. Needs the SCCP services.

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End-points exchange lists of addresses during initiation of the connection. In case of k3ua failures, use of more than one address can allow re-routing of packets, and also provide an alternate path for retransmissions. Peer servers can be local or remote.

Tech Stuff – SIGTRAN (SS7 over IP)

The transport addresses used by the endpoints in the association uniquely identify that association. The whole IP network is represented by a single point code that addresses the MGC at the network edge. The IPSPs do not require point codes. Each IP node is required to have a point code and an IP address. SCTP’s multi-streaming allows data to be delivered m3ka multiple, independent streams, so that if there is data loss in one stream, delivery will not be affected for the other streams.


The SCTP user can specify at startup time the number of streams to be supported by the association.

SG’s single function is to relay MTP3 messages. Each IP node does not require a point code. SG is not an SS7 node and has no point code. For more information, see M3UA message handling. Routing keys are defined using c tutofial of the following parameters: A peer signaling process can be in an active or standby state. A standard IP layer. Problems, comments, suggestions, corrections including broken links or something to add?

SUA can enhance the efficiency of the network and provides a means tutoria simpler implementations.