Intel SIU520 SS7 manual System Configuration, Changes to the config.txt Parameter File

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

Signaling Card

PCM Trunk #0

PCM Trunk #1

SIUA

V.11 Port #A

V.11 Port #B

Voice

Processing

Platform

Signaling Card

PCM Trunk #0

PCM Trunk #1

SIUB

V.11 Port #A

V.11 Port #B

SS7 Network

E-1 or T-1 Trunk Containing

SS7 Signaling and Voice Circuits

Inter-SIU SS7 Link Set

SS7 Network

E-1 or T-1 Trunk Containing

SS7 Signaling and Voice Circuits

Figure 18. Inter-SIU Link Set over V.11

The inter-SIU signaling link set can be configured to use any signaling processor on any signaling card and may be carried on any of the available interfaces on the signaling card.

If V.11 interfaces are used to carry the SS7 signaling between the SIU and the network (this is typically the case in North America), it is possible that there will be free E-1/T-1 PCM ports on signaling cards. These may be used for the inter-SIU signaling.

System Configuration

The system assignment of SIUA or SIUB is made by typ- ing one of these commands:

CNSYS:MODE=SIUA;

or

CNSYS:MODE=SIUB;

The current assignment may be displayed by typing:

CNSYP;

Changes to the config.txt Parameter File

Each SIU is configured individually. The config.txt parameter file held on each unit reflects the configuration view of the local unit only; hence, assignments of link set and link identities are only unique within a single unit.

For the dual configuration, it is necessary to modify the protocol configuration file config.txt to assign one unit as SIUA and the other as SIUB using the SIU_INSTANCE command. The IP address of the other SIU must also be declared using the SIU_REM_ADDR command.

Configuring the Inter-SIU Link

The inter-SIU link set should be defined on both units using the MTP_LINKSET command with bit 15 of the <flags> parameter set to 1. This link set must have the same value defined for the <local_spc> and <adjacent_spc> values; this will be the local point code of the SIU pair. Links are added to the inter-SIU link set

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Contents Application Note Intel CommunicationsTable of Contents Table of Figures Abstract SIU Circuit-switched API OperationManagement Interface Transaction-based API OperationSIU Connected to Adjacent Node with Two Links in Link Set Failure of SS7 LinksLink Failure of RoutesFailure of Signaling Interface Unit Failure of Power SupplyRouting Architectures of a Dual-resilient SIU System Connection to a Single Adjacent Signaling PointConnection to an Adjacent Mated STP Pair Compares the advantages and disadvantages of these methods SS7 Dual SIU Architecture for Circuit-Switched ApplicationsMTP1-3 Circuit Group Active Inactive MTP1-3 Siua Siub Dual SIU Architecture for Transaction-based ApplicationsSS7 Failure of Application Failure of IP SubnetworkSIU520 HostInter-SIU Link over Crossed E-1/T-1 Cable Hardware RequirementsSystem 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 GCTsetinstance Communicating with Both Siua and SiubGCTgetinstance Transferring Control of a Circuit Group between SIUsRe-synchronization of Circuit State Information Transferring the Circuit GroupRecovery of the Failed Unit Transferring Control BackCircuit Group Conflict If an SIU fails do I need to take any action? How can I tell if an SIU fails?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.
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