Container Networking solutions with OVS

Speakers: Anjali S Jain and Nupur Jain, Intel
Slides: https://www.openvswitch.org/support/ovscon2020/slides/presentation-deck-ovscon.pptx.pdf
OVS is becoming the vSwitch of choice even for Container networking. OpenShift & Antrea are an example of that adoption. The challenges that come with that are two folds. One of exposing a container interface(Application Socket) as a switching port to OVS. Typically Application sockets don't get exposed as a forwarding end point in a vSwitch. The switching endpoint at present is a Pod. The Iptables used to load balance or direct the traffic to a Container socket is not integrated well in the vSwitch. The second challenge is of Accelerating/offloading this Container interface into HW offloaded vSwitch. This talk presents solution in this space using sub-functions/Sub-dev deployed on Ancillary bus (Kernel patches under review). There are also a few technological innovations happening in parallel in the virtualization space that help with the solution, for example scalable IOV and AF_XDP sockets. We will present the SW building blocks for achieving this makeover for OVS. We will also talk about the scale challenge and whether Netdev based Port representors are up to that challenge.

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