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Windows Mesh Expansion (WME) with Linkerd

Thursday, August 13, 2026

9 am PT | 12 pm ET | 6 pm CET

When you mesh your Kubernetes services, you get automatic mTLS, authorization policy enforcement and golden metrics. But what about your Windows servers running your legacy and line-of-business apps? Can they benefit from all the service mesh magic? 

Yes! With Windows mesh expansion (part of Buoyant Enterprise for Linkerd), you can. It pulls Windows VMs and bare-metal hosts into your Linkerd mesh and you get all of the Linkerd goodness wherever those machines run, whether on-prem or in the cloud. Behind it all is a Windows kernel-mode driver that transparently redirects traffic through the Linkerd proxy, Microsoft WHQL-signed for Windows Server so it runs on production machines out of the box. In this Service Mesh Academy, we'll go under the hood on how it works. Join us to see what a truly Windows-inclusive mesh looks like!

What you'll get out of this

  • Learn how Windows mesh expansion extends your Linkerd mesh to Windows workloads outside Kubernetes, on VMs or bare metal Windows Hosts, powered by a Microsoft WHQL-signed kernel-mode driver that transparently redirects traffic through the Linkerd proxy
  • See how the MSI installer joins a Windows host to the mesh, and how its configuration settings control traffic redirection, identity, and proxy behavior
  • Know how to onboard a Windows host into your own mesh and enforce authorization policy on its traffic, giving it the same mTLS, policy, and observability your pods already get

Getting Ready

This is a hands-on workshop, so it's important that you arrive prepared! You'll need three things: a Kubernetes cluster with Buoyant Enterprise for Linkerd installed (we'll use BEL 2.20), a Windows Server host to bring into the mesh (a VM or bare metal, running anywhere: Azure, AWS, Hyper-V, VMware, VirtualBox, and more), and network connectivity between the two. Check out the BEL Getting Started Guide for instructions on setting up BEL. (As always, if you don't want to do the hands-on portion, you're welcome to just listen in. But it won't be as fun!)

Speakers

Kashif Hasan

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Software Engineer

Kashif Hasan is a Software Developer at Buoyant, where he works on Windows Kernel Mode Driver development, the piece that's bringing Linkerd support to Windows workloads. He's spent most of his career in low-level systems work, including kernel-mode drivers (WDM and WDF) at BitKibble and BlackBerry 10 OS internals, from bootloader to USB and UART drivers, at BlackBerry. That depth in Windows driver development is exactly what he'll be drawing on for this session.