Intel SIU520 SS7 manual Dual SIU Architecture for Transaction-based Applications, Siua Siub

Page 16

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

A) Dual-resilient SIUs running SS7 protocol stack to TCAP

 

Host 0

 

Host N

 

TC User

. . .

TC User

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ethernet

SIUA

 

 

SIUB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TCAP

 

 

 

TCAP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCCP

 

 

 

SCCP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MTP

 

 

 

MTP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B) Dual-resilient SIUs running SS7 protocol stack up to SCCP

Host 0

 

 

 

Host N

 

 

 

 

 

TC User

 

 

 

 

 

TC User

 

 

 

 

 

 

 

 

 

 

. . .

 

 

 

 

 

 

 

 

 

 

 

TCAP

 

 

 

 

 

 

 

TCAP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTC

 

 

 

 

 

 

 

DTC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ethernet

 

 

 

 

 

 

 

SIUA

 

 

 

 

 

 

 

 

 

SIUB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTS

 

 

 

 

DTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCCP

 

 

 

 

SCCP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MTP

MTP

Figure 13. Two Different Architectures for a TCAP Processing SIU System

Dual SIU Architecture for Transaction-based Applications

There are two ways of architecting a dual-resilient SIU520-based system for processing TCAP transactions.

Running the SS7 stack up to SCCP on the SIUs

Running the SS7 stack up to TCAP on the SIUs

In the first case, TCAP and potential layers sitting on top of TCAP run on the application host(s) and an additional piece of software is required on each SIU to distribute TCAP transactions to multiple application hosts. This software option is called distributed transaction server (DTS). Figure 13 depicts this architectural difference.

13

Image 16
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 CableChanges to the config.txt Parameter File System ConfigurationConfiguring the Inter-SIU Link Circuit Group Configuration Routing ConfigurationExample Configuration For Siua Connecting a Host to Two SIUsFor Siub Communicating with Both Siua and Siub GCTsetinstanceGCTgetinstance Transferring Control of a Circuit Group between SIUsTransferring the Circuit Group Re-synchronization of Circuit State InformationTransferring Control Back Recovery of the Failed UnitCircuit Group Conflict How can I tell if an SIU fails? If an SIU fails do I need to take any action?What happens if an inter-SIU SS7 link fails? 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.