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October 24-28
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Wednesday, October 26 • 5:25pm - 6:00pm
Whose Packet Is It Anyway? Life of a Packet Through a Service Mesh - Kevin Leimkuhler, Buoyant & Doug Jordan, Airbnb

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In this talk, Kevin and Doug will trace a packet through its journey between a meshed client and server. They'll explore how the path of a packet changes after installing a service mesh, the additional hops it introduces, and which networking changes ensure the application's behavior isn't affected.  First they'll observe the networking rule changes that allow for a proxy to intercept traffic. Once we understand what changes about how a packet travels through the kernel, we'll better understand how to observe it in the following steps. Next, in order to observe this packet on its journey they'll take a dive into the Kubernetes networking debugging space. How do you properly use debug containers to observe traffic between other containers? Once you have debugging capabilities, what tools can we use to observe the traffic? Using these tools, attendees will understand what is happening behind the scenes of a service mesh and how a packet travels within it.
Speakers
avatar for Kevin Leimkuhler

Kevin Leimkuhler

Software Engineer, Buoyant
Kevin Leimkuhler is a software engineer at Buoyant and works on Linkerd. Over several years, he has worked on all parts of the project—from each of the components in the control plane to the proxy and the ecosystem of libraries that it is built off of.
DJ

Douglas Jordan

Senior Software Engineer, Airbnb
Doug is a senior software engineer at Airbnb on the Cloud Foundation team. He has focused on TCP workloads as well as expanding the service mesh to include virtual machine based workloads. Previously, he worked at Microsoft Azure where he adopted Linkerd to secure and operationalize... Read More →

Whose packet is it anyways? pdf
Wednesday October 26, 2022 5:25pm - 6:00pm EDT
430 AB
  Service Mesh