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E-CER: Recovery Paths to Deviate Packets During a Failure in IP Backbones with OSPF

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3 Author(s)
Barreto, F. ; Univ. Tecnol. Fed. do Parana, Curitiba, Brazil ; Wille, E.C.G. ; Nacamura, L.

Link state routing protocols, like OSPF, are used in IP backbones to correctly define the routes. During failure situations, the OSPF process needs a due time to react and find new routes. During this time, the routes can present instability with high packet loss rate, which affects backbone reliability. This study proposes a proactive approach named E-CER in order to reduce the OSPF packet loss rate during the reaction time. This approach is evaluated in representations of synthetic and real backbone topologies, and also in a network simulator to analyze the reduction of packet loss rate, which has rendered rather satisfactory outcomes.

Published in:

Latin America Transactions, IEEE (Revista IEEE America Latina)  (Volume:7 ,  Issue: 6 )