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Networking Blog

The Official Blog Site of the Windows Core Networking Team at Microsoft

  • 68 Blog Articles
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2,720

Windows Insiders gain new DNS over HTTPS controls

tojens on Jun 29 2021 06:00 AM
A recap of the new ways Insiders can configure the use of DNS over HTTPS on Windows
2,319

Network ATC in Preview on Azure Stack HCI

Dan Cuomo on May 27 2021 11:50 AM
Azure Stack HCI is a subscription service that, like Office 365 or Windows 10, continually get free updates. The next up...
5,160

Algorithmic improvements boost TCP performance on the Internet

huanyi on May 11 2021 07:56 PM
We will walk through our journey and show how we made big strides in improving performance between Windows Server 2016 a...
17.7K

Making MsQuic Blazing Fast

nibanks on Apr 14 2021 11:13 AM
In the last year, MsQuic upload speeds have more than quadrupled! Come read about all we've done for MsQuic performance.
4,137

Troubleshooting Switch Misconfiguration

Dan Cuomo on Mar 19 2021 01:46 PM
It can be difficult to determine if you host can't communicate because of a host or physical network configuration. The ...
1,652

Azure Kubernetes Service on Azure Stack HCI Parity with AKS PowerShell

jessicaguan on Mar 03 2021 09:00 AM
Azure Kubernetes Service on Azure Stack HCI's most recent release with PowerShell updates to align more with Azure Kuber...
2,166

Quick Tip: Does my NIC support VMMQ?

Dan Cuomo on Feb 22 2021 11:49 AM
This article gives a brief overview of VMMQ and provides a pointer on how to quickly identify if your adapters support t...
48.7K

Calico for Windows goes Open Source

mkostersitz on Sep 22 2020 07:08 AM
Over the last couple of years Microsoft and Tigera have been working together to close some significant gaps in the Wind...
63.1K

Windows Server Insiders getting gRPC support in Http.sys

tojens on Jul 22 2020 06:00 AM
Announcing new Http.sys features to support gRPC 
13.7K

Pointer: Domain Time Synchronization in the Age of Working from Home

Dan Cuomo on Jun 05 2020 09:04 AM
Working from home has presented challenges in many areas and it is true for time synchronization on computers used at ho...
97.8K

Introducing Packet Monitor

george-guirguis on May 22 2020 06:00 AM
Packet Monitor is an in-box cross-component network diagnostics tool for Windows.
138K

Windows Insiders can now test DNS over HTTPS

tojens on May 13 2020 10:00 AM
This post will explain how to use DoH as a Windows Insider
46.8K

MsQuic is Open Source

Daniel Havey on Apr 28 2020 03:49 PM
Microsoft is open sourcing our QUIC library, MsQuic, on GitHub under an MIT license. MsQuic is a cross-platform, general...
25K

Introducing SDNSecurityToolkit

tojens on Apr 01 2020 06:00 AM
A new tool for analyzing vulnerabilities in SDN deployments
53.1K

L2bridge Container Networking

David Schott on Mar 05 2020 06:00 AM
L2bridge networking is widely used in software-defined data centers thanks to its high configurability, performance, rel...
58.8K

Teaming in Azure Stack HCI

Dan Cuomo on Feb 03 2020 06:00 AM
Windows Server currently has two inbox teaming mechanisms with two very different purposes. In this article, we’ll descr...
139K

Windows will improve user privacy with DNS over HTTPS

tojens on Nov 17 2019 09:00 PM
Announcing and explaining our intention to support DNS over HTTPS in future versions of Windows
38.2K

Windows Containers and Rancher 2.3

mkostersitz on Oct 08 2019 09:05 AM
Container technology is transforming the face of business and application development. 70% of on-premises workloads toda...
31.5K

Disabling Legacy TLS

Gabriel Montenegro on Oct 02 2019 06:00 AM
Please read our blog on new capabilities in Windows Server 2019 to enforce improved security on connections.
31.1K

Evolution of Timekeeping in Windows

tojens on Aug 05 2019 06:00 AM
A document providing an overview of the time keeping improvements in Windows.
43.1K

Direct Server Return (DSR) in a nutshell

mkostersitz on Jun 19 2019 06:00 AM
TL;DR; A question we get asked quite a bit is: "What is Microsoft doing to improve Networking performance?" To answer th...
34.1K

Synthetic Accelerations in a Nutshell – Windows Server 2019

Dan Cuomo on May 29 2019 06:00 AM
This is the final post covering synthetic accelerations covering Windows Server 2012, 2012 R2, 2016, and 2019. We recomm...
19.9K

DPDK releases v19.05, introduces Windows Support!

Harini Ramakrishnan on May 22 2019 11:02 AM
Windows support for DPDK merges into the community maintained repository with v19.05 release!
26K

Troubleshooting Kubernetes Networking on Windows: Part 1

David Schott on May 15 2019 06:00 AM
Kubernetes is not easy to troubleshoot – even if you’re an expert. There are multiple components involved in the creatio...
21.8K

Synthetic Accelerations in a Nutshell – Windows Server 2016

Dan Cuomo on May 08 2019 06:00 AM
This is the third in a series of posts covering synthetic accelerations covering Windows Server 2012, 2012 R2, 2016, and...
10.3K

Synthetic Accelerations in a Nutshell - Windows Server 2012 R2

Dan Cuomo on Apr 24 2019 06:00 AM
This is the second in a series of posts covering synthetic accelerations (specifically VMQ) on 2012, 2012 R2, 2016, and ...
15.6K

Synthetic Accelerations in a Nutshell – Windows Server 2012

Dan Cuomo on Apr 17 2019 06:00 AM
This is the first in a series of posts covering synthetic accelerations (specifically VMQ) on 2012, 2012 R2, 2016, and 2...
12.8K

How NOT to test the Windows Time Service

Dan Cuomo on Apr 10 2019 06:00 AM
Primer on how to prevent bad testing methodologies from affecting your time accuracy
26.5K

Windows Subsystem for Linux for testing Windows 10 PTP Client

Dan Cuomo on Apr 03 2019 06:00 AM
In this article, we show a simple setup (video and written instructions) for testing the new Precision Time Protocol (PT...

Latest Comments

george-guirguis
in Introducing Packet Monitor on Jul 30 2021 04:23 PM
@KevinPiazza pktmon doesn't really support versioning yet; when you try to call its version, it will simply reflect the Windows version. These 2 builds should have the latest version of pktmon if you updated them since April so it's definitely unexpected to have an older version of pktmon on these b...
0 Likes
KevinPiazza
in Introducing Packet Monitor on Jul 26 2021 02:43 PM
@george-guirguis We are finding LTSC 2019 has pktmon version 10.0.17763.292. That seems to be an older version that doesn't have the command line options that I have on my Windows 10, pktmon 10.0.19041.906. Windows Update doesn't seem to update the version on LTSC. Do you know if we can just copy ov...
0 Likes
scorbin
in Windows Subsystem for Linux for testing Windows 10 PTP Client on Jul 14 2021 03:28 PM
@Dan Cuomo , who can I contact for support using the PtpClient provider? I've been evaluating using the ptpprov.dll to synchronize a Windows client to a https://selinc.com/products/2488/. I'm unable to get Windows to connect with the grandmaster. In Wireshark I can see the clock sending multicast an...
0 Likes
vsoul
in Windows Subsystem for Linux for testing Windows 10 PTP Client on Jul 13 2021 02:49 AM
Hi @Dan Cuomo We are trying to setup a PTP client on on Windows Server 2019 system to a GrandMaster system providing PTP Hybrid Unicast/Multicast profile. We have done all suggested configuration on registry/firewall and verify we receive GM announce/synch messages with a wireshark capture but still...
0 Likes
Jesse Cook
in Windows Insiders gain new DNS over HTTPS controls on Jul 01 2021 09:54 AM
It is mentioned that there are group policy settings to configure this. Since there is no mention of where to get group policy adm files for Windows 11, could you provide registry settings to make these changes? Previously I tested DoH in Windows by enabling the registry key in Windows 10 builds, ho...
0 Likes