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Networking Blog

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

  • 73 Blog Articles
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11.4K

Making DoH Discoverable: Introducing DDR

tojens on Oct 27 2021 06:00 AM
Discovery of Designated Resolvers (DDR) is available to Windows Insiders to dynamically discover DoH configurations
11.7K

Deploying HTTP/3 on Windows Server at Scale

nibanks on Oct 12 2021 12:40 PM
We've recently started deploying HTTP/3 to Exchange Online servers globally and have some pretty exciting data to share!
1,899

Network ATC: Common Preview Questions

Dan Cuomo on Sep 27 2021 09:07 AM
Network ATC has received some great feedback during its time in preview. We’ve heard that you love how it: Simplifies de...
7,907

What's QUIC?

JamesKehr on Aug 25 2021 06:58 AM
This is a quick discussion, all puns intended, about why QUIC is important to the modern internet.
7,718

Enabling HTTP/3 support on Windows Server 2022

tojens on Aug 24 2021 06:00 AM
Instructions for enabling HTTP/3 for your Windows Server-based web services
7,416

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
3,867

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...
7,576

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...
19.3K

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.
5,569

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 ...
2,627

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...
3,440

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...
50K

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...
65.7K

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 
14.6K

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...
103K

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.
148K

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
49.7K

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...
26K

Introducing SDNSecurityToolkit

tojens on Apr 01 2020 06:00 AM
A new tool for analyzing vulnerabilities in SDN deployments
55.6K

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...
65.2K

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...
143K

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
39.3K

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...
32.9K

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.
32.4K

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.
48.9K

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...
36.6K

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...
21.1K

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!
28.5K

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...

Latest Comments

Scott_Dismukes
in Pointer: Domain Time Synchronization in the Age of Working from Home on Dec 08 2021 06:04 AM
The link mentioned is now no longer accessible - "Access Denied".
0 Likes
thecooldean
in Algorithmic improvements boost TCP performance on the Internet on Dec 05 2021 04:58 AM
When will this be implemented in Windows 10, this has been implemented in Windows 11 but not 10. I have been getting terrible upload speeds due to out of order packet delivery as mentioned in https://docs.microsoft.com/en-us/answers/questions/89768/slow-wired-upload-speed-vs-linux-on-same-hardware.h...
0 Likes
reuvygroovy
in Synthetic Accelerations in a Nutshell – Windows Server 2019 on Nov 29 2021 09:53 PM
Hi, is there any new posts for Hyper-V 2022?
0 Likes
ivanpash
in Deploying HTTP/3 on Windows Server at Scale on Nov 29 2021 01:16 PM
@devandops There isn't a way to proxy HTTP/3 yet. Existing proxies worked for HTTP/2 using the CONNECT verb to establish a tunnel, the same as HTTPS in HTTP/1.x. However, proxies that inspect the HTTP traffic, like Fiddler, are acting as MiTM. So, they have to add support for ALPN and parsing HTTP/2...
0 Likes
Thirupathi_Pendyala
in Making DoH Discoverable: Introducing DDR on Nov 29 2021 10:04 AM
Hello Mr. Tommy Jensen, The article was very good. The DDR feature is a good development for Secure DNS. But, I have some questions regarding the workings of DDR feature.1) If I configure a local network where Windows server 2022 acts as DNS server for Windows 11 (Client) and enable the DDR feature ...
0 Likes