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Logical topology design for IP rerouting: ASONs versus static OTNs

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Abstract
IP-based backbone networks are gradually moving to a network model consisting of high-speed routers that are flexibly interconnected by a mesh of light paths set up by an optical transport network that consists of wavelength division multiplexing (WDM) links and optical cross-connects. In such a model, the generalized MPLS protocol suite could provide the IP centric control plane component that will be used to deliver rapid and dynamic circuit provisioning of end-to-end optical light paths between the routers. This is called an automatic switched optical (transport) network (ASON). An ASON enables reconfiguration of the logical IP topology by setting up and tearing down light paths. This allows to up- or downgrade link capacities during a router failure to the capacities needed by the new routing of the affected traffic. Such survivability against (single) IP router failures is cost-effective, as capacity to the IP layer can be provided flexibly when necessary. We present and investigate a logical topology optimization problem that minimizes the total amount or cost of the needed resources (interfaces, wavelengths, WDM line-systems, amplifiers, etc.) in both the IP and the optical layer. A novel optimization aspect in this problem is the possibility, as a result of the ASON, to reuse the physical resources (like interface cards and WDM line-systems) over the different network states (the failure-free and all the router failure scenarios). We devised a simple optimization strategy to investigate the cost of the ASON approach and compare it with other schemes that survive single router failures.
Keywords
Survivability, Automatic switched optical networks, IP-over-WDM, RESTORATION, NETWORKS, Optical transport networks, IP topology reconfiguration

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Citation

Please use this url to cite or link to this publication:

Chicago
Groebbens, Adelbert, Didier Colle, Ann-Sophie De Maesschalck, Bart Puype, Kris Steenhaut, Mario Pickavet, Ann Nowe, and Piet Demeester. 2011. “Logical Topology Design for IP Rerouting: ASONs Versus Static OTNs.” Photonic Network Communications 21 (2): 170–191.
APA
Groebbens, A., Colle, D., De Maesschalck, A.-S., Puype, B., Steenhaut, K., Pickavet, M., Nowe, A., et al. (2011). Logical topology design for IP rerouting: ASONs versus static OTNs. PHOTONIC NETWORK COMMUNICATIONS, 21(2), 170–191.
Vancouver
1.
Groebbens A, Colle D, De Maesschalck A-S, Puype B, Steenhaut K, Pickavet M, et al. Logical topology design for IP rerouting: ASONs versus static OTNs. PHOTONIC NETWORK COMMUNICATIONS. 2011;21(2):170–91.
MLA
Groebbens, Adelbert, Didier Colle, Ann-Sophie De Maesschalck, et al. “Logical Topology Design for IP Rerouting: ASONs Versus Static OTNs.” PHOTONIC NETWORK COMMUNICATIONS 21.2 (2011): 170–191. Print.
@article{1259686,
  abstract     = {IP-based backbone networks are gradually moving to a network model consisting of high-speed routers that are flexibly interconnected by a mesh of light paths set up by an optical transport network that consists of wavelength division multiplexing (WDM) links and optical cross-connects. In such a model, the generalized MPLS protocol suite could provide the IP centric control plane component that will be used to deliver rapid and dynamic circuit provisioning of end-to-end optical light paths between the routers. This is called an automatic switched optical (transport) network (ASON). An ASON enables reconfiguration of the logical IP topology by setting up and tearing down light paths. This allows to up- or downgrade link capacities during a router failure to the capacities needed by the new routing of the affected traffic. Such survivability against (single) IP router failures is cost-effective, as capacity to the IP layer can be provided flexibly when necessary. We present and investigate a logical topology optimization problem that minimizes the total amount or cost of the needed resources (interfaces, wavelengths, WDM line-systems, amplifiers, etc.) in both the IP and the optical layer. A novel optimization aspect in this problem is the possibility, as a result of the ASON, to reuse the physical resources (like interface cards and WDM line-systems) over the different network states (the failure-free and all the router failure scenarios). We devised a simple optimization strategy to investigate the cost of the ASON approach and compare it with other schemes that survive single router failures.},
  author       = {Groebbens, Adelbert and Colle, Didier and De Maesschalck, Ann-Sophie and Puype, Bart and Steenhaut, Kris and Pickavet, Mario and Nowe, Ann and Demeester, Piet},
  issn         = {1387-974X},
  journal      = {PHOTONIC NETWORK COMMUNICATIONS},
  keyword      = {Survivability,Automatic switched optical networks,IP-over-WDM,RESTORATION,NETWORKS,Optical transport networks,IP topology reconfiguration},
  language     = {eng},
  number       = {2},
  pages        = {170--191},
  title        = {Logical topology design for IP rerouting: ASONs versus static OTNs},
  url          = {http://dx.doi.org/10.1007/s11107-010-0291-x},
  volume       = {21},
  year         = {2011},
}

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