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Firewalls are perimeter security solutions that are useful for addressing the unwanted traffic issue. However, designers must also appropriately address the network performance, availability, and complexity problems that firewalls introduce. The authors survey existing cluster-based fault-tolerant firewall architectures and discuss their trade-offs in these three areas. They present a preliminary...
The border gateway protocol (BGP) routing system is one of the key components of today's Internet infrastructure. However, the fundamentals of the BGP routing system have remained unchanged since its standardization. The only fault tolerant mechanism currently available is multihoming, which is about increasing the number of peering autonomous systems (ASes). The reliability of the BGP infrastructure...
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