Everything filed under Networking, newest first.
Keith and David Coleman discuss the benefits and deployment hurdles of standard power 6GHz Wi‑Fi indoors, focusing on automated frequency coordination, indoor geolocation for APs, and low-power indoor fallback strategies.
This Network Break episode covers follow-up on Cisco’s Teleport deal and Chinese models on U.S. public clouds, warns about critical HPE Aruba Networking Fabric Composer vulnerabilities, notes OpenAI and Anthropic outages plus upcoming Arista security disclosures, and begins broader news coverage.
Vincent Bernat created an exceptionally polished interactive introduction to the spanning tree protocol, apparently using WebAssembly, and it is so impressive that it may serve as the definitive STP explanation, with a video version also available.
APNIC 62 welcomes attendees to Mumbai, India, and invites them to look ahead to the upcoming days of the event.
A vintage TrueTime XL GPS time server, once used to distribute precise network time, is being examined for a demo but faces practical hurdles from obsolete antenna hardware, battery-backed settings, and GPS week rollover issues that can break trusted timekeeping.
Telxius has launched a carrier-neutral landing gateway and edge data centre in Cancun, Mexico, to improve regional connectivity and serve as a landing point for the Tikal submarine cable linking Guatemala and Boca Raton, strengthening network links across the Caribbean, the USA, Latin America, and Europe.
The APNIC Executive Council has published the Stage 1 report from its community consultation on improving diversity in APNIC community leadership, and the discussion will continue at APNIC 62 in Mumbai with remote participation available.
APNIC Labs has been experimenting with how DNS handles requests for nonexistent names, aiming to improve resilience against random name attacks by better understanding and strengthening this behavior.
Markus Schellenberg says Helsana uses ThousandEyes to gain visibility across internet, Azure, and home networks, quickly identify where issues originate, reduce troubleshooting time and tickets, and share clear snapshots that help teams and employees resolve problems collaboratively.
The content highlights the overwhelming variety of communication or privacy network options available, contrasting open source and commercial models as well as single-hop, multi-hop, and mixnet architectures.
The content highlights the challenge of maintaining network observability in dual-stack environments, focusing on whether current monitoring tools can actually see IPv6 traffic and the limitations vendors create as networks evolve.
Ethan and Holly explain how LLDP helps network engineers discover network topology and verify cabling by exchanging frames with mandatory and optional TLVs, while emphasizing that edge-port security remains important.
SR-MPLS can replace traditional MPLS control planes like LDP or RSVP without disrupting a BGP-free transport core, as shown in a workshop scenario where the same core topology continued working after swapping in SR-MPLS and adding hosts plus BGP routing.
This analysis by Ilyas Rahimi at the University of Amsterdam examines how locally served root zones affect traffic patterns, likely focusing on performance, latency, and network efficiency implications within DNS infrastructure.
Arista says that after two decades, product quality and security remain its top priorities, and it is responding to an increasingly fast-changing threat landscape by proactively communicating with customers about upcoming security-related actions and expectations.
Eric Chou, William Collins, Scott Robohn, and Chris Grundemann discuss how the Network Automation Forum grew from a question about slow automation adoption into a global, practitioner-focused, vendor-neutral community centered on AutoCon.
The vrnetlab project and its containerlab fork package virtual network devices as containers so they can be orchestrated like normal container workloads, but this raises a key challenge: how to make the underlying virtual networking plumbing actually work.
The post argues that although Layer 7 protocols are often difficult to parse, enforcing Layer 7 policies is usually simple enough that Beeline can remove the service proxy from the critical path for 89% of real-world policies.
ProLabs has launched two QSFP-DD coherent optical transceivers, the 800G ZR LH and 400G ZR ULH, to help carriers, service providers, and backbone networks extend transmission reach up to 2,400km for ultra-long-haul connectivity.
The Telstra outage underscored how modern networks depend on accurate time synchronization, revealing that even a seemingly minor infrastructure component can become critical when failures disrupt coordination, reliability, and service continuity across interconnected systems.
Devices that offer free perks may secretly turn home internet connections into part of a proxy network, using users’ bandwidth and IP addresses to route traffic for others.
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.
Lasse Haugen and Scott Robohn discuss Spec Driven Design at AutoCon 5, explaining how it helps NetOps and NetEng move from ad hoc experimentation to structured, reliable automation by defining clear specifications, practical use cases, and its impact on network engineering workflows.
BlueCat is expanding beyond IPAM and DDI by integrating LiveAction’s network observability capabilities, with Ryan Grande explaining how combining observability, flows, packets, and DDI improves operational effectiveness.
Modern service discovery has become flexible enough to let services use arbitrary ports, but DNS still remains tied to the traditional port 53 convention.
Kevin and Alexis talk with Justin Ryburn, Kentik’s VP of Global Solution Engineering and Field CTO, about the demands of technical leadership on the road, including balancing executive duties, speaking, team management, and frequent travel.
The video demonstrates how UDP simply drops missing packets and keeps going, while TCP preserves ordered delivery by withholding later data until gaps are repaired, creating head-of-line blocking that can hurt real-time applications like voice calls and games where stale data is less useful than missing data.
The content previews the European Commission’s topics under consideration before the September meeting leading up to APNIC 62, signaling an agenda-setting overview rather than a detailed policy announcement.
Late June netlab added GRE tunnel support, including Junos, but integration tests with FRR containers exposed a Junos OSPFv3 failure because it incorrectly sent DBD packets over GRE tunnels with MTU set to zero, a behavior meant for virtual links.
RPKI has significantly improved protection against prefix hijacking, but a broader review of BGP attacks shows that four attack classes remain unaddressed by cryptographic validation and still depend on local filtering, static limits, and reactive mitigation.
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.
Cisco and Basler are collaborating on a validated machine vision design that connects cameras, industrial networking, and AI-driven decision-making to deliver reliable, scalable vision data transmission across factory and other industrial environments.
LINX and JPIX have expanded their 2018 partnership by launching direct London-to-Tokyo network routes, enabling European networks to access JPIX’s Japanese interconnection platform and local peering opportunities while extending cross-border connectivity between the two exchange ecosystems.
More than 100 APNIC Members attended the South Asia APNIC Sub-Regional Forum at SANOG 44 in Kathmandu, where their feedback will help shape APNIC’s future regional priorities.
The post introduces a Segment Routing workshop example demonstrating multi-vendor SR-MPLS in the same lab topology, with Arista EOS on PE1, FRRouting on P, and SR Linux on PE2, marking a return to regular programming after summer and linking it to prior workshop examples.
At IETF 126, participants discussed how AI is increasingly influencing Internet infrastructure, emphasizing IPv6 as essential for scaling AI ecosystems and considering new technical approaches to support that growth.
Rowell and François discuss the hardware, software, AI, and automation tools they’ve used in 2026 for daily work, client visits, business operations, Wi-Fi troubleshooting, and surveys, with plans to revisit which tools prove most useful by year’s end.
Meta introduced MetaRoCE, a new RDMA transport protocol designed specifically for AI-scale training and serving on commodity Ethernet, aiming to improve fast, reliable GPU data movement while reducing wasted compute, and it is releasing the specification, reference software, and compliance testing tools.
The content argues that claims about using digital twins or AI agents to validate network ideas often ignore practical limitations, highlighting a new gotcha: Arista cEOS containers do not apply inbound ACLs to control-plane traffic, unlike vEOS VMs.
A guest post argues that a homelab is incomplete without a solid networking setup, warning that while the effort can be risky and complex, it is ultimately worthwhile for building a more capable and realistic lab environment.
IXPs influence far more than Internet speed, shaping latency, cost, resilience, and technology adoption, and their importance is growing as the Internet evolves, as emphasized in a BPF 2026 panel discussion.
Upgrading to Wi-Fi 7 requires considering switchboards for optimal throughput and power, alongside other factors like clients and drivers.
Network to Code's leaders discuss their community-first approach to open-core development and the scalable automation capabilities of Nautobot 3.1, including AI enhancements, in a sponsored podcast episode with Scott Robohn.
The APNIC 62 Open Policy Meeting will discuss various policy proposals related to IPv4 management, IPv6 allocation, and Internet abuse handling.
Nick Burgalio and Tom Coffeen discuss a Reddit post about federal guidance on IPv6 adoption, questioning the effectiveness of mandates in promoting IPv6 implementation.
Ethan Banks and Holly Podbielak explore wireless security basics, roaming standards, and access point analysis to help organizations choose the best AP brand for their Wi-Fi networks.
Geoff Huston explores the unpredictable nature of DNS queries following a 'cold start', where no cached data is available, highlighting the complexities and inefficiencies that arise in such scenarios.
Alexis Bertholf, renowned for revitalizing network engineering through engaging tech content, discusses her career and storytelling skills with Eric Chou at AutoCon 5.
RFC 9234 enables routers to autonomously prevent route leaks by utilizing BGP Roles and the Only to Customer attribute, with observations revealing unexpected behavior from two Tier 1 networks stripping the OTC attribute.
Sakar commented on a blog post about Cisco IOS/XE's BGP CONNECT state, prompting a scenario test to verify TCP SYN behavior between routers.
