Loopback recovery from double-link failures in optical mesh networks
IEEE/ACM Transactions on Networking (TON)
Computer Networks: The International Journal of Computer and Telecommunications Networking - Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)
International Journal of Network Management
Multiple link failures survivability of optical networks with traffic grooming capability
Computer Communications
Simple pre-provisioning scheme to enable fast restoration
IEEE/ACM Transactions on Networking (TON)
IEEE/ACM Transactions on Networking (TON)
MAC protocols over wireless mesh networks: problems and perspective
Journal of Parallel and Distributed Computing
Availability guarantee in survivable WDM mesh networks: A time perspective
Information Sciences: an International Journal
Dual-link failure resiliency through backup link mutual exclusion
IEEE/ACM Transactions on Networking (TON)
IEEE/ACM Transactions on Networking (TON)
Computer Networks: The International Journal of Computer and Telecommunications Networking
Evaluation of restoration techniques incorporating optimal principle in WDM optical networks
Computer Communications
Computer Networks: The International Journal of Computer and Telecommunications Networking - Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)
p-cycle based dual failure recovery in WDM mesh networks
ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
Spare capacity reprovisioning for high availability shared backup path protection connections
Computer Communications
Resilience analysis of packet-witched communication networks
IEEE/ACM Transactions on Networking (TON)
Computer Networks: The International Journal of Computer and Telecommunications Networking
Efficient traffic loss evaluation for transport backbone networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Designing demand-wise shared protection networks with specified minimum dual-failure restorability
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
IEEE Journal on Selected Areas in Communications
Interval availability estimation for protected connections in optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
How reliable can two-path protection be?
IEEE/ACM Transactions on Networking (TON)
Differentiated recovery in WDM networks
Photonic Network Communications
Risk-aware provisioning for optical WDM mesh networks
IEEE/ACM Transactions on Networking (TON)
A methodology of resilient MPLS/VPN path management under multiple link failures
ISCIS'05 Proceedings of the 20th international conference on Computer and Information Sciences
Availability analysis under multiple link failures in WDM networks with shared-link connections
Photonic Network Communications
QoS-IP'05 Proceedings of the Third international conference on Quality of Service in Multiservice IP Networks
ICOIN'06 Proceedings of the 2006 international conference on Information Networking: advances in Data Communications and Wireless Networks
Centralized versus distributed re-provisioning in optical mesh networks
ICN'05 Proceedings of the 4th international conference on Networking - Volume Part I
Impact of resource sharability on dual failure restorability in optical mesh networks
NETWORKING'05 Proceedings of the 4th IFIP-TC6 international conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication Systems
On surviving dual-link failures in path protected optical WDM mesh networks
Optical Switching and Networking
Differentiated quality-of-protection in survivable WDM mesh networks using p-structures
Computer Communications
Spare capacity allocation using shared backup path protection for dual link failures
Computer Communications
An efficient scheme for two-link failure protection/restoration in WDM mesh networks
Journal of High Speed Networks
Availability study of M: N automatic protection switching scheme in WDM networks
Journal of High Speed Networks
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The most common aim in designing a survivable network is to achieve restorability against all single span failures, with a minimal investment in spare capacity. This leaves dual-failure situations as the main factor to consider in quantifying how the availability of services benefit from the investment in restorability. We approach the question in part with a theoretical framework and in part with a series of computational routing trials. The computational part of the analysis includes all details of graph topology, capacity distribution, and the details of the restoration process, effects that were generally subject to significant approximations in prior work. The main finding is that a span-restorable mesh network can be extremely robust under dual-failure events against which they are not specifically designed. In a modular-capacity environment, an adaptive restoration process was found to restore as much as 95% of failed capacity on average over all dual-failure scenarios, even though the network was designed with minimal spare capacity to assure only single-failure restorability. The results also imply that for a priority service class, mesh networks could provide even higher availability than dedicated 1+1 APS. This is because there are almost no dual-failure scenarios for which some partial restoration level is not possible, whereas with 1+1 APS (or rings) there are an assured number of dual-failure scenarios for which the path restorability is zero. Results suggest conservatively that 20% or more of the paths in a mesh network could enjoy this ultra-high availability service by assigning fractional recovery capacity preferentially to those paths upon a dual failure scenario