Intel SIU520 SS7 manual Transaction-based API Operation, Management Interface

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

CT Application Platform

}E-1 or T-1 Trunks, Voice Circuits Only

CT Application Platform

SIU520

}

E-1 or T-1 Trunks

 

 

 

 

 

 

 

SS7

 

 

 

with SS7 Channel

 

 

 

 

 

 

and Voice Circuits

Information

 

 

 

 

 

 

 

 

 

 

 

 

Ethernet

Figure 2. Integrating the SIU520

Transaction-based API Operation

TCAP-based applications can be distributed on multiple application hosts using two different methods which are explained in details further in this document (see “Failure of Applications”, pg. 15). These methods imply running TC-user application parts (such as GSM-MAP, INAP, or IS-41) on each application host. When running any application part above TCAP on the SIU520 itself, the product allows operation of a single host application.

Management Interface

The SIU520 constantly monitors the state of its physical connections, PCM trunk inputs, the communication channel via TCP/IP Ethernet to the host processors and reports status information to an application process running on a user-defined host. The host elected to receive management messages can be selected by sending an API_MSG_COMMAND management request. (See the Intel NetStructure SIU520 Developer’s Manual for more information.) Host 0 is used by default.

Potential Points of Failure

In this section, the most critical points of failure of an Intel NetStructure SIU520 SS7 signaling gateway-based sys- tem are reviewed. The list of potential points of failure include:

■SS7 links

■SS7 routes

■Power supply

■Signaling interface unit

■IP subnetwork

■Application host

For each of these points of failure, a solution is provided and implementation details are given.

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Contents Intel Communications Application NoteTable of Contents Table of Figures Abstract Circuit-switched API Operation SIUTransaction-based API Operation Management InterfaceFailure of SS7 Links SIU Connected to Adjacent Node with Two Links in Link SetFailure of Routes LinkFailure of Power Supply Failure of Signaling Interface UnitConnection to a Single Adjacent Signaling Point Routing Architectures of a Dual-resilient SIU SystemConnection to an Adjacent Mated STP Pair Compares the advantages and disadvantages of these methods Dual SIU Architecture for Circuit-Switched Applications SS7MTP1-3 Circuit Group Active Inactive MTP1-3 Dual SIU Architecture for Transaction-based Applications Siua SiubSS7 Failure of IP Subnetwork Failure of ApplicationHost SIU520Hardware Requirements Inter-SIU Link over Crossed E-1/T-1 CableSystem Configuration Changes to the config.txt Parameter FileConfiguring the Inter-SIU Link Routing Configuration Circuit Group ConfigurationExample Configuration Connecting a Host to Two SIUs For SiuaFor Siub GCTgetinstance Communicating with Both Siua and SiubGCTsetinstance Transferring Control of a Circuit Group between SIUsTransferring the Circuit Group Re-synchronization of Circuit State InformationRecovery of the Failed Unit Transferring Control BackCircuit Group Conflict What happens if an inter-SIU SS7 link fails? How can I tell if an SIU fails?If an SIU fails do I need to take any action? What happens if the Ethernet interfaces fail on an SIU?Route Ten Parsippany, NJ Phone

SIU520 SS7 specifications

The Intel SIU520 SS7 is a significant advancement in the realm of telecommunications, specifically designed for seamless signaling in a wide array of telecommunication infrastructures. As a part of Intel's pioneering suite of products, the SIU520 plays a critical role in managing signaling for telephony systems that require efficient handling of SS7 protocols.

One of the main features of the SIU520 is its support for the SS7 signaling protocol, which is pivotal for the establishment and management of telephone calls over traditional circuit-switched networks. With its robust design, the SIU520 ensures reliability in signaling, contributing to the reduction of call set-up times and the minimization of errors, thus enhancing the overall quality of communication services.

The SIU520 incorporates advanced technologies such as high-speed data processing capabilities, allowing it to handle multiple signaling messages concurrently. This is particularly important in environments with high call volumes, where efficient processing can significantly affect the performance of telecommunication services. Furthermore, the architecture of the SIU520 is designed for scalability, enabling easy integration into existing infrastructures while accommodating future expansions as demand increases.

Another characteristic that sets the SIU520 apart is its support for various signaling types beyond standard SS7, including ISDN and SIP. This makes it a versatile tool for service providers aiming to offer diverse services, such as voice, video, and data communications. The SIU520 is also designed with a focus on interoperability, which ensures that it can effectively communicate with equipment from different manufacturers, thus providing flexibility in deployment.

In terms of security features, the SIU520 is architected to withstand common threats in the communication landscape. It employs encryption and authentication protocols to safeguard signaling traffic, ensuring that sensitive information remains protected during transmission.

In summary, the Intel SIU520 SS7 represents a robust and flexible signaling solution crucial for modern telecommunications. With its support for multiple protocols, high processing speeds, scalability, and secure communication capabilities, it stands as a testament to Intel's commitment to advancing telecommunication technologies and enhancing the efficiency and reliability of communication networks worldwide.
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