Revolutionizing Network Management and Performance with ATC, HUD and AccelNet on Windows Server 2025

by Contributed | Nov 4, 2024 | Technology

This article is contributed. See the original author and article here.

In an era where seamless network management and enhanced performance are paramount, the release of Network ATC, Network HUD, and AccelNet for Windows Server 2025 marks a significant milestone. These groundbreaking innovations are designed to optimize the way we manage, monitor, and accelerate network operations, promising unprecedented efficiency and reliability.

Network ATC

Historically, deployment and management of networking for Failover clusters has been complex and error prone. The configuration flexibility with the host networking stack means there are many moving parts that can be easily misconfigured or overlooked. Keeping up with the latest best practices is also a challenge as improvements are continuously made to the underlying technologies. Additionally, configuration consistency across failover cluster nodes is vital for reliability.

Network ATC simplifies the deployment and network configuration management for Windows Server 2025 clusters. It provides an intent-based approach to host network deployment. Customers specify one or more intents (management, compute, or storage) for a network adapter, and we automate the deployment of the intended configuration.

Network ATC helps to:

• Reduce host networking deployment time, complexity, and errors


• Deploy the latest Microsoft-validated and supported best practices


• Ensure configuration consistency across the cluster


• Eliminate configuration drift

One of the greatest benefits of Network ATC is its ability to remediate configuration drift. Have you ever wondered “who changed that?” or said, “we must have missed this node.” You’ll never worry about this again with Network ATC at the helm. Expanding the cluster to add new nodes? Simply install the feature on the new node, join the cluster and within minutes, the expected configuration will be deployed.

For more details about deploying and managing Network ATC on Windows Server 2025, please check here: Deploy host networking with Network ATC. You can manage Network ATC through Powershell cmdlets or Windows Admin Center.

Figure: Network ATC management in Windows Admin Center

Network HUD (Coming Soon)

Network HUD is an upcoming Windows Server 2025 feature that will proactively identifies and remediates operational network issues.

Managing a network for business applications is challenging. Ensuring stability and optimization requires coordination across the physical network (switches, cabling, NICs), host operating system (virtual switches, virtual NICs), and the applications running in VMs or containers. Each component has its own configurations and capabilities, often managed by different teams. Even with a perfect setup, a bad configuration elsewhere in the network can degrade performance.

The complexity of managing these components has reached an all-time high, with numerous tools and technologies involved. Windows Server OS provides a wealth of information through event logs, performance counters, and tools, but analyzing this data when issues arise requires expertise and time, often after the problem has occurred.

Network HUD excels by analyzing real-time data from event logs, performance counters, tools like Pktmon, network traffic, and physical devices to identify issues before they happen. In many cases, it prevents issues by adjusting your system to avoid exacerbating problems. When prevention isn’t possible, Network HUD alerts you with actionable messages to resolve the issue.

Network HUD leverages capabilities in the physical switch to ensure that your configuration matches the physical network. For example, it can determine whether the locally connected switchports have the correct VLAN settings and the correct data center bridging configuration required for RDMA storage traffic to function.

Network HUD is built as a true cloud service that runs on-premises. It will ship as an Arc extension and will be part of Windows Server Azure Arc Management (WSAAM) services. This allows us to bring in more capabilities and make these available to you as soon as they are ready.

AccelNet

Accelerated Networking simplifies the management of single root I/O virtualization (SR-IOV) for virtual machines hosted on Windows Server 2025 clusters. SR-IOV provides a high-performance data path that bypasses the host, which reduces latency, jitter, and CPU utilization for the most demanding network workloads. This is particularly useful in High Performance Computing (HPC) environments, Real-time applications such as financial trading platforms, and virtualized network functions.  

The following figure illustrates how two VMs communicate with and without SR-IOV.

Without SR-IOV, all networking traffic in and out of the VM traverses the host and the virtual switch. With SR-IOV, network traffic that arrives at VM’s network interface (NIC) is forwarded directly to VM.

SR-IOV has been available in Windows Server since 2012 R2 days. So, what benefit does AccelNet provide?

1. Prerequisite checking: Informs users if the Windows Server cluster hosts support SR-IOV, checking for OS version and hyperthreading status among other things.


2. Host Configuration: Ensures SR-IOV is enabled on the correct vSwitch that hosts virtual machine workloads and allows configuration of reserve nodes in case of failover to prevent resource over-subscription.


3. Simplified VM performance settings: It can be overwhelming to identify how many queue pairs may be needed for a VM that is being enabled through SR-IOV. AccelNet abstracts performance settings into “Low,” “Medium,” and “High” to simplify configuration.


4. Health Monitoring and Diagnostics: Leverages Network HUD to identify and remediate configuration/performance related issues. Examples include NIC SR-IOV support, Live migration management, etc. (Coming Soon)


5. Simplified management with Windows Admin Center: All AccelNet management functionality is available through Powershell and with an easy-to-use UI through Windows Admin Center (Latter coming Soon).

AccelNet is part of Windows Server Azure Arc Management (WSAAM) services. To learn more about Accelnet, please check here.

As organizations continue to navigate the challenges of an ever-evolving digital landscape, the integration of these advanced features into Windows Server 2025 ensures they are equipped with the tools needed to achieve excellence in network management and performance. Embrace the future of networking with Windows Server 2025 and experience the transformative power of Network ATC, Network HUD, and AccelNet.

We are excited to share all these innovations with you. Upgrade to Windows Server 2025 to try out these features, we look forward to your feedback. For any suggestions, opinions or issues, please reach out to us at edgenetfeedback@microsoft.com.

Introducing the modern web app pattern for .NET

by Contributed | Nov 1, 2024 | Technology

This article is contributed. See the original author and article here.

We are excited to introduce the Modern Web App (MWA) pattern for .NET. MWA is part of our Enterprise App Patterns (EAP), that offers guidance to accelerate app modernization to the cloud. MWA provides developer patterns, prescriptive architecture, reference implementation, and infrastructure guidance that aligns with the principles of the Azure Well-Architected Framework (WAF) and 12-factor app methodologies so you can be assured the guidance is real-world proven.

The Modern Web App (MWA) pattern marks the next stage in transforming monolithic web applications toward cloud-native architecture, with a focus on the Refactor modernization strategy. Building on the Reliable Web App (RWA) pattern, which helped organizations transition to cloud with minimal changes under a Replatform approach, MWA guides teams further by encouraging decoupling and decomposition of key functions into microservices. This enables high-demand areas to be optimized for agility and scalability, providing dedicated resources for critical components and enhancing reliability and performance. Decoupling also allows independent versioning and scaling, delivering cost efficiency and flexibility to evolve individual app components without affecting the entire system.

Key Features of Modern Web App pattern

The Modern Web App Pattern provides detailed guidance to decouple critical parts of a web application, enabling independent scaling, greater agility, and cost optimization. This decoupling approach ensures that high-demand components have dedicated resources and may be versioned and scaled independently, improving the reliability and performance of the application and agility to enhance features separately. By separating services, the risk of degradation in one part of the app affecting other parts is minimized. Here are some strategies MWA adopts: 

• Modernization through Refactoring 
  Built on top of the Reliable Web App Pattern, MWA focuses on optimizing high-demand areas of web applications by decoupling critical components. 


• Incremental modernization using strangler-fig pattern 
  Guidance for incremental refactoring from monolithic to decoupled services, reducing risks during modernization and improving agility for new features. 


• Embracing Cloud-Native architectures 
  Leverages Azure services such as Azure App Services, Azure Container Apps, Azure Container Registry, Azure Service Bus, Azure Monitor and more to build independently scalable, resilient cloud-native applications. 


• Independent scaling using Azure Container Apps 
  Allows key parts of the app to scale independently, optimizing resource usage and reducing costs. 


• Enhanced security and availability 
  Hub and Spoke architecture for production infrastructure improves security and isolates workloads, and multi-region deployment supports a 99.9% business srvice-level objectives (SLO). 

What’s covered in the reference implementation?

In this context, we use a fictional company, Relecloud’s, evolving business needs to illustrate the Modern Web App (MWA) pattern, which takes scalability further through decoupling and refactoring of monolithic line-of-business web app. This architecture enables independent scaling via microservices for high demand, supporting Relecloud’s growth while enhancing security, agility and reliability meeting the 99.9% business SLO uptime requirement.

Get started

• We created a full production-grade application that you can deploy easily to Azure to see all of the principles of MWA in action. Visit the MWA GitHub repo for more information.


• Check out all of the in-depth documentation on Microsoft Learn.


• Try out the patterns included in MWA and share your feedback in comments.