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Reliability evaluation of overlay-based routing
Conference paper

Reliability evaluation of overlay-based routing

K. Daabaj and S. Ahmeda
4th Libyan Arab International Conference on Electrical and Electronic Engineering (LAICEEE 2006) (Tripoli, Libya, 20/03/2006–23/03/2006)
2006
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Abstract

The conventional Internet routing based on the Border Gateway Protocol (BGP) is often held responsible for failures and poor performance of end-to-end transfers and prolonged connectivity interruptions. A number of studies has shown that the underlying connectivity of the Internet is capable of providing much greater performance and resilience than end-points currently receive. This paper extends the existing study of whether overlay routing is required to make the most of the underlying connectivity, or whether better selection of BGP routes at an end-point is sufficient. Reliable end-to-end performance can be provided using extensive measurements of paths between nodes in a distribution network, and comparing the relative benefits of overlay routing and multi-homing route control in terms of round-trip latency, TCP connection throughput, and path availability. Paper's goal is to answer the question: How much benefit does overlay routing provide over BGP based routing, when multi-homing and route control are considered? Past studies have demonstrated the use of overlay routing to make better use of the underlying connectivity of the Internet than the current BGP-based system. The results demonstrate BGP routing coupled with sophisticated overlay route control can achieve a good end-to-end resilience and performance.

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