Hierarchical interdomain routing and light-path provisioning in optical networks

Q. Liu, M. A. Kök, N. Ghani, A. Gumaste

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Given the increasing adoption of DWDM networking technology, there is now a growing need to address distributed interdomain light-path provisioning issues. Although interdomain provisioning has been well studied for packet/cell-switching networks, the wavelength dimension presents many additional challenges. To address this challenge, a detailed hierarchical routing GMPLS-based framework for provisioning all-optical and optoelectronic multidomain DWDM networks is presented. The scheme adapts topology abstraction schemes to improve routing scalability and lower interdomain blocking probabilities. Related interdomain light-path RWA and signaling schemes are also tabled. Performance analysis results are also presented to demonstrate the effectiveness of the proposed mechanisms along with directions for future research work.

Original languageEnglish (US)
Pages (from-to)764-774
Number of pages11
JournalJournal of Optical Networking
Issue number10
StatePublished - Oct 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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