Mizar project is a research prototype open-source K8s pod networking solution developed with performant eBPF/XDP technology and architected for fast provisioning & multi-tenant networking needs of cloud environments.

While K8s provides the ability for users to specify compute QoS class for CPU & memory, there is no such facility for pod networking. In this talk, Vinay & Phu will describe a use case where payment processing pods need priority access to the network. They will discuss how Mizar’s XDP-first architecture helped build a unique solution that brings fine-grained network QoS to pod network traffic. They show how to cleverly leverage XDP & Linux Traffic Control (tc) BPF hooks to offer a rich set of network QoS classifications with Earliest Departure Time (EDT) algorithm-based traffic rate-limiting implemented in eBPF. Furthermore, they show how to exploit QoS features in data center physical switches & bring true end-to-end network QoS to pods. They will conclude with a demo.