Data-Center

Nvidia has declared the traditional data center dead. At GTC 2026, CEO Jensen Huang unveiled a complete architectural overhaul that replaces file-serving buildings with AI factories purpose-built for token generation — and the catalyst is the agentic AI explosion driven by OpenClaw. The Vera Rubin POD packs 40 racks, 1,152 GPUs, and 60 exaflops into a single co-designed supercomputer, while AI Grids extend inference across 100,000+ telecom edge sites worldwide. For network engineers, this isn’t a product refresh — it’s a structural redefinition of what data center networking means. ...

Nvidia’s networking division generated $31 billion in fiscal year 2026 revenue — $11 billion in Q4 alone — making a GPU company the largest data center Ethernet switch vendor on the planet. According to Nvidia’s Q4 FY2026 earnings report, networking revenue surged 267% year-over-year, and the division now generates more quarterly revenue than Cisco’s entire annual data center switching business. This isn’t a side project. Networking is now Nvidia’s second-largest business segment, and it’s reshaping who builds, sells, and operates data center networks. ...

NVIDIA Spectrum-X is the platform that proved Ethernet can compete with InfiniBand for AI training workloads — and it’s winning. By tightly coupling Spectrum-4 switch ASICs with BlueField-3 SuperNICs, Spectrum-X achieves 1.6x better AI workload performance than off-the-shelf Ethernet while maintaining the cost, ecosystem, and operational advantages that made Ethernet the standard for everything else in the data center. Key Takeaway: Spectrum-X is not faster Ethernet — it’s a fundamentally different architecture that ports three InfiniBand innovations (lossless transport, adaptive routing, in-network telemetry) to Ethernet, and network engineers who understand these mechanisms will design the AI fabrics of the next decade. ...

Cisco NDFC (Nexus Dashboard Fabric Controller) is the platform that provisions, manages, and monitors VXLAN BGP EVPN data center fabrics — and it’s the controller platform tested on the CCIE Data Center v3.1 lab exam. If you’ve been studying with DCNM, you’re working with a tool that reaches end-of-support in April 2026. NDFC is what you’ll face in the exam room. Key Takeaway: NDFC’s Easy Fabric workflow can deploy a complete VXLAN EVPN fabric in minutes, but CCIE candidates who don’t understand the NX-OS configuration NDFC generates underneath will fail troubleshooting tasks — you need both the GUI workflow and the CLI verification skills. ...

Eridu, an AI networking startup founded by serial entrepreneur Drew Perkins, emerged from stealth on March 10, 2026 with an oversubscribed $200 million Series A to build clean-sheet network switches with custom silicon designed from the ground up for AI data centers. The company argues that existing networking hardware — from Broadcom, Nvidia, Cisco, and Marvell — is hitting an architectural ceiling that incremental improvements can’t fix, and that connecting millions of GPUs requires a fundamentally different approach to switch design. ...

Meta is spending up to $135 billion on AI infrastructure in 2026 — the largest single-company technology investment in history — and the networking layer that ties it all together runs on Nvidia Spectrum-X Ethernet, not InfiniBand. This multiyear partnership covers millions of Nvidia Blackwell and next-generation Rubin GPUs, and the deliberate choice of Ethernet over InfiniBand sends a clear signal: the future of AI-scale networking is open, Ethernet-based, and built on the same fabric principles that CCIE-level engineers have been mastering for years. ...

STMicroelectronics just entered high-volume production of its PIC100 silicon photonics platform — the manufacturing technology behind the 800G and 1.6T optical modules going into every major AI data center buildout. For network engineers, this is the plumbing layer beneath your VXLAN EVPN overlays and BGP fabrics, and understanding it is becoming essential as data centers push past 400G. Key Takeaway: Silicon photonics and co-packaged optics are the technologies enabling AI data center fabrics to scale to 800G/1.6T per link while cutting power consumption by up to 70% — and network engineers who understand the optical layer will design better fabrics and troubleshoot faster. ...

Cisco calls itself an “AI infrastructure leader.” HPE-Juniper is “AI-native networking.” Arista powers “AI data centers.” At MWC 2026, every networking vendor pitched an AI story. But when you strip away the marketing decks, what’s actually changed in the protocols you configure, the architectures you design, and the career bets you should make? Key Takeaway: The AI pivot is real at the revenue level — $630B+ in hyperscaler capex is flowing through networking vendors — but the skills that matter are protocol-level (VXLAN EVPN, BGP, RDMA/RoCE, 800G Ethernet), not vendor-specific AI branding. CCIE fundamentals aren’t going away; they’re becoming more valuable. ...

Cisco ACI’s standalone architecture is being absorbed into the broader NX-OS VXLAN EVPN ecosystem. While Cisco hasn’t issued a formal end-of-life notice, their Nexus One strategy, aggressive EVPN feature additions to NX-OS, and industry feedback all point to the same conclusion: CCIE Data Center candidates should be investing the majority of their study time in EVPN fabric skills, not ACI-specific knowledge. Key Takeaway: Cisco’s Nexus One initiative is converging ACI and NX-OS under unified VXLAN/EVPN standards — if you’re preparing for CCIE DC or planning your next data center refresh, EVPN fabric expertise is the skill with the longest career runway. ...

Marvell Technology just projected fiscal 2028 revenue near $15 billion, blowing past Wall Street estimates on the back of explosive AI data center demand. For network engineers, this isn’t just a stock market story — Marvell silicon sits inside the switches, optics, and DPUs you configure every day. Understanding what’s driving this growth tells you exactly where data center networking is headed. Key Takeaway: AI workloads are fundamentally reshaping data center network architecture, and the silicon providers like Marvell building custom ASICs, 800G/1.6T optics, and DPUs are the clearest signal of where your career should be pointing. ...

Broadcom’s AI chip business is on track to surpass $100 billion in annual revenue by 2027, according to CEO Hock Tan’s March 2026 earnings call. For network engineers, this isn’t just a semiconductor headline — it’s a signal that demand for high-speed data center fabric expertise is about to explode. Every dollar spent on AI silicon requires corresponding investment in 800G switching, lossless Ethernet fabrics, and EVPN-VXLAN overlays to connect those chips. ...

Cisco ACI and VMware NSX are the two dominant data center SDN platforms, but they solve fundamentally different problems. ACI is a hardware-integrated fabric that manages both physical and virtual infrastructure through an application-centric policy model. NSX is a hypervisor-based overlay that virtualizes networking entirely in software. In 2026, the landscape has shifted dramatically — Broadcom’s acquisition of VMware has disrupted NSX licensing, while ACI continues to deepen its VXLAN EVPN integration. For CCIE Data Center candidates, understanding both platforms (and why employers want ACI expertise specifically) is a career differentiator. ...

CCIE Data Center holders earn $142,000–$168,000 on average in the US in 2026, with senior architects and ACI specialists pushing well past $225,000. The AI data center construction boom has turned DC networking expertise into one of the hottest — and highest-paying — specializations in the Cisco certification ecosystem. Key Takeaway: CCIE DC specialists earn a consistent premium over CCIE Enterprise Infrastructure holders, and the gap is widening as AI workloads drive unprecedented demand for engineers who can design and troubleshoot VXLAN EVPN fabrics and ACI policy-driven networks at scale. ...

Master VXLAN EVPN multi-homing with ESI on Cisco Nexus 9000. Configuration guide with NX-OS examples and troubleshooting commands.