Tunable QoS-Aware Network Survivability
Jose Yallouz, Ariel Orda

TL;DR
This paper introduces a flexible approach to network survivability that allows specifying desired protection levels and optimizes routing for additive QoS criteria, significantly improving performance with minimal survivability trade-offs.
Contribution
It develops efficient algorithms for tunable survivability considering additive QoS metrics and demonstrates substantial QoS improvements through simulations and network design applications.
Findings
Up to 2x improvement in end-to-end QoS performance.
Negligible reduction in survivability level.
Effective algorithms for additive QoS criteria optimization.
Abstract
Coping with network failures has been recognized as an issue of major importance in terms of social security, stability and prosperity. It has become clear that current networking standards fall short of coping with the complex challenge of surviving failures. The need to address this challenge has become a focal point of networking research. In particular, the concept of \textbf{\emph{tunable survivability}} offers major performance improvements over traditional approaches. Indeed, while the traditional approach aims at providing full (100\%) protection against network failures through disjoint paths, it was realized that this requirement is too restrictive in practice. Tunable survivability provides a quantitative measure for specifying the desired level (0\%-100\%) of survivability and offers flexibility in the choice of the routing paths. Previous work focused on the simpler class…
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Taxonomy
TopicsAdvanced Optical Network Technologies · Software-Defined Networks and 5G · Network Traffic and Congestion Control
