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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A peer signaling process can be in an active or standby state. SUA can enhance the efficiency of the network and provides a means for simpler implementations. You will have a warm inner glow for the rest of the day. It is a ‘glue’ layer and its functionality is not defined by the standards. Legal and Privacy site by zytrax web-master at zytrax Page modified: Messages are handled from point code to point code. F or more information, see M3UA management function summary. SCTP uses periodic heart-beat messages to confirm the status of each end point.

It performs these primary tasks:. Does not need SCCP services, reducing the complexity of the node and tutoriap reducing cost. If you are happy it’s OK – but your browser is giving a less than optimal experience on our site. Allows for multiple virtual connections on the same physical line. The transport addresses used by the endpoints in the association uniquely identify that association. Allows m3ha messages to be delivered in the order in which there were sent.


MTP3 routes the message back to the origination SP. The whole IP network is represented by a single point code that addresses the MGC at the network edge. End-points exchange lists of addresses during initiation of the connection.

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. The IPSPs do not require point codes.

Tech Stuff – SIGTRAN (SS7 over IP)

SG’s single function is to relay MTP3 messages. Maintains the availability status of all destinations through all routes. 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.

M3UA – Wikipedia

Tutoria, M3UA instance can support up to associations. View the status of the SCTP association by which the remote peer signaling process is reachable.

M3UA uses a flexible configuration capable of supporting a wide variety of network routing and addressing requirements. MTP3 routes from point code to point code. There is a one-to-one relationship between a peer server and a routing key.

M3UA layer

A single IP port number is used across the entire address list at an endpoint for a specific session. For more information, see M3UA message handling. For more information, see M3UA management function summary. In case of network failures, use of more than one address can allow re-routing of packets, tuforial also provide an alternate path for retransmissions. SG is an SS7 node with a point code.


Each IP node does not require a point code. Routing keys are defined using c ombinations of the following parameters: The SCTP user can specify at startup time the number of streams to be supported by the association.

Each IPSP must have its own point code. Routes messages to their IP destinations. One address is designated as the primary address to receive data.

Automatically reroutes traffic in the case of failure or congestion. Each user application might be assigned its own stream virtual connection. Interface to the higher and lower SS7 layers.

A device that converts from one protocol to another. Each IP node is required to have a point code and an IP address. SG is not an SS7 node and has no point code. Problems, comments, suggestions, corrections including broken links or something to add?