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manual Application Note, SIU520 SS7 Signaling Gateway, Intel in Communications
Models:
SIU520 SS7
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FAQ
Straight Configuration
Connecting a Host to Two SIUs
Building Fault-tolerant SS7 Systems Using the Intel NetStructure
Failure of Signaling Interface Unit
Recovery of the Failed Unit
Circuit-switched API Operation
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Application Note
Building
Fault-tolerant
SS7
Systems Using the
Intel
®
NetStructure™
SIU520 SS7 Signaling Gateway
Intel in
Communications
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Page 1
Image 1
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Contents
Building Fault-tolerant SS7 Systems Using the Intel NetStructure
Application Note
SIU520 SS7 Signaling Gateway
Intel in Communications
Configuring a Dual SIU Pair
Table of Contents
Appendix A Frequently Asked Questions
Abstract
Table of Figures
Introduction
Abstract
Overview of SIU Operation
Circuit-switched API Operation
Management Interface
Transaction-based API Operation
Potential Points of Failure
E-1 or T-1 Trunks
Failure of SS7 Links
Link
Failure of Routes
Failure of Signaling Interface Unit
Failure of Power Supply
Figure 5. Dual SIU Architecture
Connection to a Single Adjacent Signaling Point
Routing Architectures of a Dual-resilient SIU System
Connection to an Adjacent Mated STP Pair
Crossed Configuration
Straight Configuration
Comparison Subject
links and one inter-SIU link. Allocating a single link means
Dual SIU Architecture for Circuit-Switched Applications
Inactive
Figure 12. Routing Following Failure of SIUA
Adjacent
A Dual-resilient SIUs running SS7 protocol stack to TCAP
Dual SIU Architecture for Transaction-based Applications
B Dual-resilient SIUs running SS7 protocol stack up to SCCP
7 SS
Failure of Application
Failure of IP Subnetwork
TCAP Resiliency Based on Dialogue Groups
Host
TCAP Resiliency Based on DTS/DTC Option
SIU520
Host
Hardware Requirements
SS7 Network
Configuring a Dual SIU Pair
SS7 Network
Changes to the config.txt Parameter File
System Configuration
Configuring the Inter-SIU Link
SS7 Network
Circuit Group Configuration
Routing Configuration
Example Configuration
Figure 19. Example Configuration to an Adjacent SSP/SCP
For SIUA
Connecting a Host to Two SIUs
For SIUB
Run-time Operations of a Dual-resilient SIU System
GCTsetinstance
Communicating with Both SIUA and SIUB
GCTgetinstance
Transferring Control of a Circuit Group between SIUs
Re-synchronization of Circuit State Information
Transferring the Circuit Group
Transferring Control Back
Recovery of the Failed Unit
Circuit Group Conflict
Q How many links should I configure in the inter-SIU link set?
Q Do I need to activate circuit groups on a single SIU configuration?
Q How can I tell if an SIU fails?
Q If an SIU fails do I need to take any action?
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