Some principles for designing a wide-area WDM optical network
IEEE/ACM Transactions on Networking (TON)
Fast accurate computation of large-scale IP traffic matrices from link loads
SIGMETRICS '03 Proceedings of the 2003 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Distributed virtual network topology control mechanism in GMPLS-based multiregion networks
IEEE Journal on Selected Areas in Communications
Achieving IP routing stability with optical bypass
Optical Switching and Networking
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The evolution of next generation services has led to significant increase in Internet backbone traffic, and multilayer (hybrid) IP over circuit/optical layer solutions are being explored to cope up with the growing demands for capacity. Optical circuit bypass is typically used to increase capacity in the IP layer without need for over-provisioning, which in turn reduces OPEX of the IP network. Current proposals for IP topology reconfigurations in multi-layer networks do not take into consideration the effect of modifying the network topology on routing stability. We present a new bypass-based IP topology upgrade mechanism which can be used with high frequency without significantly affecting routing in the network. We present an ILP based approach to compute the optimal bypasses in the IP layer in case of congestion and numerical results show that our proposed solution is scalable and efficient.