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Operational Evaluation of ASON/GMPLS Interdomain Capability over a JGN II Network Testbed

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6 Author(s)
Atsushi Taniguchi ; NTT Network Innovation Labs., NICT Tsukuba Res. Center, Tsukuba ; Yasunori Sameshima ; Shuichi Okamoto ; Yukifusa Okano
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Traffic engineering in backbone networks is an important issue in supporting an appropriate QoS level to accommodate various types of traffic flows efficiently. Automatically switched optical networks and generalized multiprotocol label switching control planes are promising functionalities to achieve the sophisticated mechanism of interdomain traffic engineering. In this article we address dynamic operational scenarios to control IP traffic flows using the ASON/GMPLS control plane. This includes cut-through IP/MPLS routers and the rerouting of failed links through the tunnel of optical label-switched paths. This article presents an operational evaluation of traffic engineering. More specifically, we present QoS recovery for protecting high priority traffic using policy controllers and fault recovery of inter-domain LSPs over the JGN II network testbed. This article evaluates and discusses the feasibility of these operational scenarios using state-of-the-art optical switching and control- plane technologies.

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IEEE Communications Magazine  (Volume:46 ,  Issue: 5 )