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With the rapid development of Internet, it has become an essential infrastructure for communication today, while the IP layer has a poor ability in fast failure recovery, which impending the improving of the Internet performance. Concerned to the single link failure problems, this paper proposed a fast link failure recovery mechanism based on multi-topology. Firstly, by theoretical analysis, the number...
There are two causes of network congestion: one is the lack of network resources, and the other is the irrational allocation of network resources. While traditional congestion control methods such as rate control, window mechanism, queue control, etc. can be applied to solve the congestion problem, but for the later congestion case, the fundamental solution is to make more effectively use of the network...
Routing schemes for network recovery aim to find connection paths under the scenarios of link or node failures that disrupt end-to-end connectivity. Several recovery schemes consider a proactive search for alternative links (or paths) that can restore the lost connectivity after the failure. However, the effect that the modification of network traffic after the switch over the alternative paths brings...
A fast rerouting scheme is proposed to guarantee the QoS performance of rerouted path when handling link and node failures. The new scheme is based on deflection routing mechanism and improves on two aspects: first, it can promptly handle single node failure as well as single link failure, second, QoS metric is taken into accounted when calculating recovery routes. Simulation results show that the...
As communication networks play an important role in today's life, network reliability becomes more critical than ever. Traditionally, network reliability is measured by connectivity or traffic volume. However, most of performance degradation problems are correlated with routing dynamic and congestion. It is necessary to include the both routing dynamics and congestion into network reliability computation...
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