Select Page

WNV Deep Dive Part 1 – Introduction to Containers and Windows Network Virtualization

By James Kehr, Networking Support Escalation Engineer When I started writing this article it was going to be about Container networking, and nothing but Container networking. As the article progresses I realized there was a lot of useful information that ... continue reading
The Evolution of RDMA in Windows: now extended to Hyper-V Guests

The Evolution of RDMA in Windows: now extended to Hyper-V Guests

This post written by Don Stanwyck, Senior Program Manager, Windows Core Networking Remote DMA (RDMA) is an incredible technology that allows networked hosts to exchange information with virtually no CPU overhead and with extremely little latency in the end–system. Microsoft ... continue reading
SDN Troubleshooting: UDP Communication failures and changing the Network Controller Certificate

SDN Troubleshooting: UDP Communication failures and changing the Network Controller Certificate

With this blog post, I wanted to highlight a couple of issues that we have encountered recently with Software Defined Networking (SDN) customer deployments in Windows Server 2016. Issue #1: UDP communication isn’t working when outbound NAT is configured Customer ... continue reading

Core Network Stack Features in the Creators Update for Windows 10

By: Praveen Balasubramanian and Daniel Havey This blog is the sequel to our first Windows Core Networking features announcements post. It describes the second wave of core networking features in the Windows Redstone series. The first wave of features is ... continue reading

HTTPS Client Certificate Request freezes when the Server is handling a large PUT/POST Request

HTTPS Client Certificate Request freezes when the Server is handling a large PUT/POST Request There is a class of problems that may occur when using client-side certificates in HTTPS. Sometimes, the server’s request for a client certificate will freeze (until ... continue reading
dd

Troubleshooting certificate issues in Software Defined Networking (SDN)

As you may be aware, Network Controller in Windows Server 2016 uses certificate based authentication for communicating with Hyper-V hosts and Software Load Balancer MUX virtual machines (VMs). Some SDN customers have complained about communication issues between Network Controller and ... continue reading

Windows network performance suffering from bad buffering

Daniel Havey, Praveen Balasubramanian Windows telemetry results have indicated that a significant number of data connections are using the SO_RCVBUF and/or the SO_SNDBUF winsock options to statically allocate TCP buffers. There are many websites that recommend setting the TCP buffers ... continue reading
DHCP server configuration wizard

New DHCP Server Shows 169.254.xxx.xxx

When configuring a new DHCP server, often the configuration wizard automatically creates a binding to a random network adapter. If this adaptor is not configured or is unplugged, then the DHCP wizard will use the IP address available – often ... continue reading
Configure the Network Ports on a Windows Cluster

Configure the Network Ports on a Windows Cluster

Windows clustering requires the network configuration be complete and accurate. The network ports should be configured with IP Addresses, DNS, Default Gateways and any other relevant networking details. The DNS IP address will likely be your Active Directory servers, otherwise you ... continue reading
KB-18-1

Name the Systems and Join to Windows Domain

We are joining the Storage Spaces cluster to a Windows Domain.  Join every cluster node to your domain and rename the nodes to match your IT standard naming scheme. This is done in the standard Windows methodology via the Server ... continue reading