SS7 over IP (SCTP)
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The next generation of telecommunications networks will deliver broadband data and multimedia services to users over a core that supports IP over MPLS. In order to achieve the migration to this future IP only service, existing Signalling Systems must be made to interoperate with new control mechanisms. When the existing circuit switched infrastructure disappears so too will the service paths that support the signalling network. It will become necessary to carry existing SS7 interconnections over the new IP infrastructure and to interoperate new packet based telecommunications and voice services with existing international circuit switched telecommunications.
Transition to the new services has already started in the UK and the current plans expect a complete migration, replacing all existing ISDN local exchanges by 2010. It therefore will become vital to carry exiting SS7 interconnections over the new converged IP infrastructure and to interoperate mobile and fixed international networks using SS7 with new VoIP infrastructures. The first step in this transition requires the carriage of SS7 over IP.
This course provides an understanding of how can be achieved, the protocol architectures used and an overview of the implementation aspects of such developments. It will provide an understanding for implementers, designers, managers and infrastructure engineers that need to plan, implement and use the new generation of networks and services.
When you have completed this course you will be able to:
- Describe the basic protocol architecture needed to carry SS7 over IP
- Select the appropriate options and mechanisms development of new signalling services
- Compare services provided by TCP, UDP and IP with SS7 Message Transfer Part
- Build infrastructures using SCTP to carry SS7 over IP effectively
- Provide reliability by deploying the re-routing options in the event of failures
- Deliver Intelligent network services over IP
- Carry TCAP, ISUP and Q.931 ISDN Access Signalling over IP.
An Overview of SS7 over IP (5 topics)
- IETF SIGTRAN working Group
- SS7 and IP Signaling interworking
- Key SS7 components
- SIGTRAN Protocol Architecture : RFC 2719
- UA - Common User Adaptation Layer Documentation
SCTP - Stream Control Transmission Protocol (11 topics)
- RFC 2960 and 3309
- Why use SCTP and not TCP?
- Functional View of SCTP
- Association Startup and Takedown
- Sequenced Delivery Streams
- User Data Fragmentation
- Acknowledgement and Congestion Avoidance
- Chunk Bundling
- Packet Validation
- User Data Transfer
- Fault Management
Supports for SCTP (25 topics)
- M3UA - SS7 MTP3-User Adaptation Layer
- RFC 3332
- Purpose of MTP3: Transport of ISUP and SCCP
- Typical Configurations
- Signalling Network Messages
- Routing Key management
- Application Service Point State Maintenance
- Management Messages
- M3UA Ports and extensions
- M2UA - SS7 MTP2-User Adaptation Layer
- RFC 3331
- SS7 Back Haul
- MU2A Service Functions
- Protocol Elements
- Associations between Signalling Gateway and Media Gateway Controller
- Security Considerations
- M2PA - SS7 MTP2-User Peer-to-Peer Adaptation Layer
- Replacement for SS7 Signalling Point Communication
- M2PA Procedures
- Link Alignment
- Message transmission
- Link Status
- Flow Control
- Link Changeover
Application Functions (19 topics)
- TUA - SS7 TCAP-User Adaptation Layer
- Transporting the TCAP
- Common Message Header
- SUA - SS7 SCCP-User Adaptation Layer
- Signalling Connection Control Part over IP
- ISUA - SS7 ISUP-User Adaptation Layer
- Call Processing
- Setup, Proceeding, Alerting, Connect, Suspend, Release and Reattempt
- Circuit Supervision
- Continuity Check and Loop-back
- IUA - ISDN Q.921-User Adaptation Layer
- RFC 3057 and 3057bis
- Backhaul of Q.921/Q.931 over IP
- TALI - Tekelec's Transport Adapter Layer Interface
- RFC 3094
- Interworking between Circuit Switched and IP
Review and Evaluation
A solid understanding of IP and telecommunications technologies is required.
The courses below may help you meet the knowledge level required to take this course. If you are unsure please ask a training advisor .
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Different pricing structures are available including special offers. These include early bird, late availability, multi-place, corporate volume and self-funding rates. Please arrange a discussion with a training advisor to discover your most cost effective option.