As SDN-based networking infrastructure continues to evolve, an increasing number of traditional network functions are deployed over virtualized network. Like traditional networks, traffic monitoring in a Software Defined Network is critical in order to ensure security and performance of the underlying infrastructure. In the context of virtualized networks, deployment of a virtualized TAP service has been reported as an effective VNF that can provide the same monitoring capabilities as a physical TAP. Unfortunately, over a para-virtualization environment, e.g. OVS, where inter-VM communication is expensive it has been observed that virtual TAPs can contribute up to 70% performance degradation. In this paper, we present a hybrid approach that allows network administrators to mirror VIRTIO port traffic to another VF (SR-IOV) via NIC hardware offloading. As a result, the mirrored traffic can be viewed through a monitoring VNF in a separate VM. Through this approach, the throughput overhead can be reduced by as much as 50%.


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    Titel :

    OVS-DPDK Port Mirroring via NIC Offloading


    Beteiligte:
    Wang, Liang-Min (Autor:in) / Miskell, Tim (Autor:in) / Fu, Patrick (Autor:in) / Liang, Cunming (Autor:in) / Verplanke, Edwin (Autor:in)


    Erscheinungsdatum :

    2020-04-01


    Format / Umfang :

    204279 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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