Intel SIU520 SS7 manual Table of Contents, Abstract, Introduction, Overview of SIU Operation

Building Fault-tolerant SS7 Systems Using the Intel® NetStructure™ SIU520 SS7 Signaling Gateway Application Note

Table of Contents

Abstract	1
Introduction	1
Overview of SIU Operation	2
Circuit-switched API Operation	2
Transaction-based API Operation	3
Management Interface	3
Potential Points of Failure	3
Failure of SS7 Links	4
Failure of Routes	5
Failure of Power Supply	6
Failure of Signaling Interface Unit	6
Routing Architectures of a Dual-resilient SIU System	7
Dual SIU architecture for Circuit-switched Applications	10
Dual SIU architecture for Transaction-based Applications	13
Failure of IP Subnetwork	15
Failure of Application	15
Configuring a Dual SIU Pair	17
Hardware Requirements	17
System Configuration	18
Changes to the config.txt Parameter File	18
Configuring the Inter-SIU Link	18
Routing Configuration	19
Circuit Group Configuration	19
Example Configuration	19
Run-time Operations of a Dual-resilient SIU System	20
Connecting a Host to Two SIUs	20
Communicating with Both SIUA and SIUB	21
Transferring Control of a Circuit Group between SIUs	21
Activating and Deactivating Circuit Groups	21
System Initialization	21
Failure Detection	21
Transferring the Circuit Group	22
Re-synchronization of the Circuit Sate Information	22
Recovery of the Failed Unit	23
Transferring Control Back	23
Circuit Group Conflict	23
Appendix A: Frequently Asked Questions	24
Appendix B: For More Information	24
Appendix C: Abbreviations	24