Networking

SS7 Routing Logic to Support Load-Sharing and Reliability of SCCP Messages Using Routes of Heterogeneous Link Types

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Executive Summary

Worldwide mobile telephony has shown exponential growth during last few years. Apart from basic and supplementary services, service providers are always in pursuit for increasing mobile penetration, customer satisfaction and newer means of revenue generation. Value added services such as roaming, international roaming, intelligent network services, SMS etc., are significant contributor. These services are SCCP based and are bandwidth intensive for SS7 signaling links. Growing need for these SCCP based messages prompted for considerable dependency on High-speed Signaling Links (HSL) from existing Low-speed Signaling Links (LSL). If deployed with route-set for combinations of HSL and LSL link-set dependent routes, standard SS7 load-sharing algorithm would affect adversely the link loading of LSL link-sets.

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