Could Proactive Link-State Routed Wireless Networks Benefit from Local Fast Reroute?

The communication performance in wireless networks is often heavily influenced by failures caused by node mobility and radio disturbance. Proactive linkstate routing protocols like OLSR and OSPFv3 with wireless extensions (WOSPF) are currently relying on slow re-convergence to restore successful packet forwarding. This may not be appropriate for particular applications, and it may cause instability during transient failures. Support for fast and local reroute should therefore be added as a feature to proactive link-state based routing protocols. In this paper, we discuss the challenges and requirements that are associated with such solutions. In addition, we evaluate and discuss to what extent recent developments for fixed IP routing can serve as solutions. To our best knowledge, no published work presents a similar study on fast recovery in proactive link-state routed wireless networks.

• Type: Conference
• Year: 2008
• Where: CNSR
• Authors: Audun Fosselie Hansen, Geir Egeland, Paal Engelstad
• Keywords: CNSR 2008, Communications, Proactive Link-state, Routing Protocols, Wireless Networks