Clustered UNIX CompactPCI systems for Internet service providers
The number of Internet Service Providers (ISP’s) continues to flourish and grow worldwide. Offered services are also expanding, from simple 9.6 to 28.8 Kbps modem dial-up lines to V.90, Digital Subscriber Lines (xDSL), and even Internet telephony services. While the majority of ISP’s remain small, catering to a local clientele, some of them have become very large and face many of the same issues that traditional service providers face in terms of billing, rack space conversation, systems reliability, scalability, and high availability. However, unlike traditional providers, steeped in several decades of proprietary architectures, ISP market requirements necessitate an open architecture systems platform model. Lewis describes how clustered UNIX systems based on CompactPCI can meet the needs of this rapidly expanding industry.