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M3UA PROTOCOL PDF

M3UA seamlessly transports SS7 MTP3 user part signaling messages over IP using SCTP. M3UA-connected IP endpoints do not have to conform to standard. MTP 3 User Adaptation Layer (M3UA). Member of the SIGTRAN protocol family. XXX – add a brief M3UA description here. The following SIGTRAN protocols in this section: IUA. M2PA, MTP2 User Peer-to- Peer Adaptation Layer. M2UA, MTP2 User Adaptation Layer. M3UA, MTP3.

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IP provides an effective way to transport user data and for operators to expand their networks and build new services.

The whole IP network is represented by a single point code that addresses the MGC at the network prktocol. The values of the chunk ID are defined as follows: It uses two extra variable parameters: SG is an SS7 node with a point code. If the receiver receives a datagram with an all-zeros Verification tag field, it checks the Chunk ID immediately following the common header.

It can be used by the receiver, in combination with the source IP Address, to identify the association to which this datagram belongs.

MTP 3 User Adaptation Layer (M3UA)

Variable-length parameters M3UA messages consist of a common header followed by zero or more variable-length parameters, as defined by the message type. The IPSPs do not require point codes.

The supported version is 1 Release 1. Please take the time from m3uz busy life to ‘mail us’ at top of screenthe webmaster below or info-support at zytrax. The Responder Cookie and the Unrecognized Parameter. Endpoints not equipped to interpret the vendor-specific chunk sent by a remote endpoint must ignore it.

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There may also be operational cost and performance advantages when traditional signaling links are replaced by IP network “connections”. Chunk Flags The type of chunk flag as defined in the chunk ID defines whether these bits will be used. The chunks contain either control information or user data. Spare This field should be set to zero. Reserved This field should be set to zero.

Tech Stuff – SIGTRAN Introduction

This chunk precedes any Data chunk sent within the association, but may be bundled with one or more Data chunks in the same datagram. The message class The following message classes are available:.

On transmit, the value of this Verification tag must be set to the value of the Initiate tag received from the peer endpoint during the association initialization.

The format of variable-length parameters is as follows:. It contains one or more error causes. Version The version field prtocol the version of M2PA. The parameter field contains the time values.

Chunk Value This field contains the actual information to be transferred in the chunk. Message Length Defines the length of the message in octets including the common header. The Selective ACK also contains zero or more fragment reports. Number of Inbound Streams. Unless otherwise noted, each parameter is only be included once in the INIT chunk. Defined by RFC The SCTP user can specify at startup time the number of streams to be supported by the association.

This is dependent on the chunk ID. Variable-length parameter format M2UA messages consist of a common header described above followed by zero or more variable-length parameters, as defined by the message type. Chunk ID The type of information contained in the chunk protocoo field. Selective Acknowledgement SACK This chunk is sent to the remote endpoint to acknowledge received Data chunks and to inform the remote endpoint of gaps in the received subsequences of Data chunks as represented protocool their TSNs.

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Message Type The following list contains the message types for the defined messages.

In case of network failures, use of more than one address can allow re-routing of packets, and also provide an alternate path for retransmissions. This chunk precedes any Data chunk sent within the association, but may be bundled with one or more Data chunks in the same SCTP datagram.

Their value is generally 0 unless otherwise specified. A standard IP layer. It is sent by the initiator of an association to its peer to complete the initialization process. In these networks, there may be some need for interworking between the SS7 and IP domains. This parameter therefore acknowledges receipt of all TSNs up to and including the value given.

Parameter value The value of the parameter. SUA can prohocol the efficiency of the network and provides a means for simpler implementations. A device that converts from one protocol to another. Heartbeat Request HEARTBEAT An endpoint should send this chunk to its peer endpoint of ,3ua current association to probe the reachability of a particular destination transport address defined in the present association.