Everything tagged network-design, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
An AP-on-a-Stick survey uses a real access point on a tripod to validate Wi-Fi design in difficult environments, but success depends less on RF work than on careful off-site preparation, client coordination, equipment selection, AP configuration, measurement planning, and organized file handling.
Keith reunites with Ferney Muñoz and Tom Hildebrand to answer listener questions and explore practical strategies for designing high-density Wi‑Fi at large-scale events, including DHCP scope management, client isolation tradeoffs, and other deployment realities.
euNetworks has set new environmental performance targets through a Sustainability-Linked Loan, integrating sustainability into network infrastructure design and aiming for continuous improvement in the GRESB infrastructure benchmark.
Keith, Ferney Muñoz, and Tom Hildebrand discuss strategies for designing reliable high-density Wi-Fi at large events, focusing on directional antennas, channel reuse, on-site verification, device roaming, troubleshooting, and collaboration.
EVPN introduces native active-active multihoming, enhancing data center network design by offering a vendor-neutral alternative to traditional dual-homing technologies like vPC and MLAG.
The blog post explores the functionality of ARP in an EVPN asymmetric IRB environment where PE devices utilize only an anycast MAC/IP address for packet forwarding.
AWS engineers have developed a new network design offering 33% better throughput, 69% fewer routers, 27% cost savings, 40% reduced power usage, and lower CO2 emissions, challenging traditional leaf-and-spine networks.
Drew and Ethan discuss with Tony Bourke the considerations for selecting between TradCore and EVPN VXLAN for network design, focusing on scale, redundancy, operational complexity, and workload mobility.
Networking is crucial for optimizing AI performance, with efficient network design and topology, such as leaf spine fabric, enhancing AI model scalability and productivity.
Ethan Banks and Ryan Hamel discuss at NANOG96 how boring network design, characterized by simplicity and standardization, is beneficial for long-term success in network operations.
Lenny Giuliano discusses multicast traffic's impact on Ethernet frame addressing, differences between IPv4 and IPv6 multicast, and introduces new hybrid multicast concepts in a podcast with Holly and Ethan.
AI training environments require a new data center design approach, moving beyond traditional models focused on compute density and virtualization efficiency, to accommodate unique demands.
OSPF and IS-IS differ in inter-area route handling, with OSPF copying intra-area routes into the backbone, while IS-IS uses level-1 areas like totally stubby OSPF areas without copying level-2 routes.
A reader struggled with implementing a multi-vendor multicast VPN over MPLS, finding GRE tunnels within a VRF as a workaround, highlighting fundamental differences between GRE/IPsec/VXLAN tunnels and MPLS paths, which are designed for different network functions and performance optimizations.
IS-IS, similar to OSPF, includes scalability mechanisms with different router levels, and understanding multilevel IS-IS is facilitated by a lab exercise available on GitHub Codespaces.
Eight widely accepted beliefs about networks have been consistently debunked, revealing misconceptions and clarifying their true implications.
High availability and redundancy are often confused, but they are distinct concepts; high availability is a network design goal, while redundancy is one technique to achieve it.
Holly and Ethan discuss designing networks for high availability and redundancy, defining key concepts and sharing practical examples from Holly's customer experiences.
The article explores troubleshooting multi-pod EVPN designs by intentionally breaking network elements within a lab topology featuring two interconnected sites, each with a spine and leaf switch.
This guest post provides a detailed checklist of essential considerations for designing a network edge, serving as a foundational guide for network architects.
The third part of a series examines the implementation of flow control in switch ASICs, crucial for high-performance network design.
When designing a network edge, consider path diversity, ASN filtering, resilience, and additional factors like security, scalability, cost, and compliance.
This article, part of a three-part series, explores the differences between rate-based and credit-based flow control methods in high-performance network design.
Flow control is a crucial element in high-performance network design, and this article is the first in a series exploring its principles.
Network engineers from leading tech companies gathered at @Scale:Networking 2025 to discuss advancements in AI network infrastructure design, operation, and debugging.
This podcast episode explores the process of designing Wi-Fi for office spaces using Hamina, focusing on user requirements, application needs, and access point placement.
The episode addresses listener feedback on OSPF, focusing on defending multi-area deployments and exploring OSPF LSA types in detail.
Designing Wi-Fi for high-density lecture halls involves strategic access point placement to minimize interference, accommodate future growth, and ensure seamless connectivity for interactive learning.
AI advancements are hindered by network limitations, as even minimal packet loss can significantly reduce GPU efficiency, emphasizing the need for reliable network infrastructure.
Ethan and Holly conclude their OSPF series by exploring OSPF area types, explaining their purpose, and testing knowledge with rapid-fire questions.
AI and machine learning are transforming wireless network design and site surveys, with companies like Hamina Wireless developing AI tools to enhance these processes.
The podcast episode discusses four essential goals of network design—stability, speed, scalability, and security—based on Ethan's extensive experience in network architecture.
This episode explores the history and development of Wide Area Networks (WANs), covering their emergence, types, and connections to Local Area Networks (LANs) and data centers.
At the AutoCon3 conference, Claudia de Luna emphasized the importance of focusing on clear requirements rather than debating tools in network automation.
The podcast discusses strategies and insights from Darrell DeRosia on designing and maintaining a fast, reliable wireless network for the 18,000-seat FedEx Forum, home to the Memphis Grizzlies.
The podcast episode clarifies the distinctions between routers and switches, exploring their definitions, historical context, and modern evolutions.
The final installment of the spanning tree series explores different versions, their network design implications, BPDU guard, and loop prevention strategies.
Virtualization products can create stub segments connected to a single router or switch, providing a realistic alternative to static routes for injecting IP subnets into routing protocols.
The content introduces advanced IS-IS features, focusing on the use and benefits of passive IS-IS interfaces, following basic IS-IS labs.
The three primary methods for connecting network devices are point-to-point links, multi-access layer-1 networks, and multi-access switched layer-2 networks, with virtual lab implementation posing unique challenges.
The show explores the challenges of designing networks for AI computing at the edge, focusing on managing network traffic patterns from AI workloads.
Drut discusses dynamic system composability, GPU utilization, and the importance of offloading traffic from traditional networking to optimize data center operations.
Network design discussions often overlook the importance of planning for natural disasters like fires and floods, despite their critical impact.
The debate between simplified and nuanced views of network layers highlights differing perspectives on the importance of IP versus underlying physical layers.
The initial videos of the Leaf-and-Spine Fabric Architectures webinar are publicly available, covering basics, physical design, and Layer-3 fabrics.
An Internet Exchange Point (IXP) operates multiple secure services within a single broadcast domain to ensure reliable peering for its members.
The podcast episode on IPv6 address planning, featuring Tom Coffeen, covers essential strategies, pitfalls, and considerations for effective IPv6 address allocation and management.
A user requested a Cisco ASAv topology example with inside and outside routers, prompting the creation of a simple topology with routers, a firewall, and hosts.
The article discusses a creative EVPN design using IBGP sessions over EBGP, highlighting the challenge of differing autonomous system assumptions and the solution of using BGP local AS functionality.
Designing Out-of-Band (OOB) networks for ISPs can be enhanced by adopting strategies from data center networking to improve reliability and efficiency.