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Application Note Building Fault-tolerant SS7 Systems Using the Intel
®
NetStructure™ SIU520 SS7 Signaling Gateway
Table of Figures
Figure 1 Structure of the Intel
®
NetStructure™ SIU520 SS7 Signaling Gateway 2
Figure 2 Integrating the SIU520 3
Figure 3 SIU Connected to Adjacent Node with Two Links in Link Set 4
Figure 4 SIU520 Connected to Mated STP Pair Providing Route Resiliency 5
Figure 5 Dual SIU Architecture 6
Figure 6 Transmit Routing to a Single Destination 7
Figure 7 Dual-resilient SIUs Connected to a Mated STP Pair in a Straight Line 8
Configuration
Figure 8 Dual-resilient SIUs Connected to a Mated STP Pair in a Crossed Link 8
Configuration
Figure 9 Transmit Routing Through Mated STPs 9
Figure 10 Normal Routing for Circuit Group 0 When Controlled by SIUA 10
Figure 11 Routing When All Local Links Have Failed, Group 0 Controlled by SIUA 11
Figure 12 Routing Following Failure of SIUA 12
Figure 13 Two Different Architectures for a TCAP Processing SIU System 13
Figure 14 Message Flow on a Dual-resilient System Running 14
the SS7 Stack up to TCAP
Figure 15 Dual LAN Operation on the SIU520 15
Figure 16 TCAP Dialogue Groups Example 16
Figure 17 Inter-SIU Link over Crossed E-1/T-1 Cable 17
Figure 18 Inter-SIU Link Set over V.11 18
Figure 19 Example Configuration to an Adjacent SSP/SCP 19
Figure 20 Example Configuration to an Adjacent STP Pair 20