Overlay networks achieve new functionality and enhance network performance by enabling control of routing at the application layer. However, this approach results in degradations of underlying networks due to the selfish behavior of overlay networks. We discuss the stability of virtual network topology (VNT) control under overlay networks that perform dynamic routing updates. We find that the dynamics of routing on overlay networks cause a high fluctuation in the traffic demand matrix, which leads to significant VNT control instability. To overcome this instability, we introduce three extensions, hysteresis, two-state utilization hysteresis, and filtering, to VNT control. Simulation results show that the hysteresis mechanism improves network stability, but cannot always improve network performance. We therefore extend the hysteresis mechanism and show that it improves both network stability and performance. However, this extension requires a lot of time for the VNT to converge to a stable state. To achieve fast convergence, we use a filtering method for VNT control. Through simulations, we prove that our methods achieve stability against overlay routing without loss of adaptability for changes in traffic demand.

© 2008 Optical Society of America

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

Related Journal Articles

• Cost modeling and evaluation of capital expenditures in optical multilayer networks (JON)
• Indoor airport radio-over-fiber network traffic model and performance analysis using load-balancing techniques [Invited] (JON)
• Generating Realistic Optical Transport Network Topologies (JOCN)
• Preserving Confidentiality in PCE-based Multi-domain Networks (JOCN)
• RPR–EPON–WiMAX Hybrid Network: A Solution for Access and Metro Networks (JOCN)

Related Conference Papers

• PCE Communication Protocol for Resource Advertisement in Multi-Domain BGP-Based Networks
• Backward Compatible Coexistence of PON Systems
• Managing the Convergence of Carrier Ethernet with Optical Transport
• Impact of FTTP on Metro Network Architecture
• A Novel LightLabel Orthogonal Frequency Division Multiplexing (LL-OFDM) System for Cross-Layer Lightpath Monitoring and Setup
• A Novel LightLabel Orthogonal Frequency Division Multiplexing (LL-OFDM) System for Cross-Layer Lightpath Monitoring and Setup