Abstract

In this work we, first, investigate multilayer network planning approaches with different levels of integration by extending a commercial planning tool that accurately models the IP network. The different levels of integration are defined with respect to the degree to which information from the optical layer is considered in the optimization of the IP layer. The impact of traffic demand and topology size is evaluated in terms of the obtained cost savings. Case study results indicate cost savings reaching 25% by holistic multilayer network planning. We then proceed to evaluate the impact of the IP layer routing policy, expressed by the IP link weights, on the cost and latency of a holistic multilayer network design. As many network operators prefer to assign IP link weights based on simple rules that are unaffected by the network conditions, we focus on two weight setting policies that are agnostic to the network conditions: the hop-based policy and the distance-based policy. We find that different IP layer policies may lead to different optimized IP topologies for the same traffic and optical layer topology. It is shown that the optical network’s regeneration requirements affect the optimal policy.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Guaranteeing Traffic Survivability and Latency Awareness in Multilayer Network Design

Jose-Juan Pedreno-Manresa, Jose-Luis Izquierdo-Zaragoza, and Pablo Pavon-Marino
J. Opt. Commun. Netw. 9(3) B53-B63 (2017)

Minimizing Resource Protection in IP Over WDM Networks: Multi-layer Shared Backup Router [Invited]

Arturo Mayoral, Víctor López, Ori Gerstel, Eleni Palkopoulou, Óscar González de Dios, and Juan Pedro Fernández-Palacios
J. Opt. Commun. Netw. 7(3) A440-A446 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription