Department of Computer Science and Information Systems

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Author: search.filters.author.Bhatia, AshutoshSubject: search.filters.subject.Hybrid SDN

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    Achieving waypoint enforcement in multi-VLAN hybrid SDN
    (IEEE, 2018) Haribabu, K; Bhatia, Ashutosh
    The waypoint enforcement in a network can be seen as the act of diverting the path of packets flowing in the network towards a predefined checkpoint to gain a higher degree of control over the network. Most of the existing solutions which perform waypoint enforcement in hybrid-SDN either disturb the existing VLAN configurations or possess certain limitation in terms of placement of SDN switches in the network. In this paper, we address the problem of achieving waypoint enforcement in a multi-VLAN hybrid software defined network (hybrid-SDN), which does not have these limitations. In particular, the proposed method uses the concept of gratuitous ARP (Address Resolution Protocol) to poison the ARP table of all the hosts in the network to divert the traffic packet towards an SDN switch.
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    A Framework to Achieve Full Waypoint Enforcement in Hybrid SDN Networks
    (Springer, 2019) Haribabu, K; Bhatia, Ashutosh
    Software Defined Networking (SDN) addresses the operational challenges faced in maintaining legacy networks by decoupling the data plane and control plane. Overhauling of the network to replace legacy switches with SDN switches is not economically viable. Incremental deployment of SDN devices is the most promising approach. Hybrid SDN network contains both legacy and SDN devices in a network. One of the challenges in hybrid SDN network is to enforce traffic to go through some of the SDN switches (waypoints) present in the network. There exist a few solutions in the literature to achieve waypoint enforcement, but practically none of them provide full waypoint enforcement. In this paper, we propose a novel framework to achieve full waypoint enforcement. The proposed framework uses virtual IP addresses to divert the complete network traffic towards the SDN switches present in the network. We also provide an analysis of the framework.