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Engineering notes, scaling guides and case studies on open networking — SONiC switching, VPP routing, optics and OpenWiFi.
RoCEv2 vs. InfiniBand in AI Fabrics: Architecture, Benchmark & Selection Guide
As GPU clusters scale from hundreds to tens of thousands of accelerators, the interconnect fabric — not raw compute — increasingly decides how much…
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AsterNOS SRv6 DCI Cross-Domain Interconnection: Option A/B/C Architecture & Selection Guide
In traditional enterprise and cloud-provider networks, the data center (DC) internal network (typically built on a VXLAN overlay) and the external wide-area network (WAN,…
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Connecting CX732Q-N to NVIDIA ConnectX-7 and BlueField-3: A 400G Optics Guide
The Asteraix CX732Q-N is a 1U, 32-port 400G QSFP-DD switch built on the Marvell Teralynx 7 ASIC. Switching capacity is 12.8 Tbps, packet buffer…
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What Is a PTP Switch, Why It Matters, and How It Works
In traditional networks, we mainly focus on only two metrics: bandwidth and latency. Bandwidth determines how much data can be carried (like the thickness…
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What Is PTP Time Synchronization? ITU-T Class A, B, C in Networking Explained
In our previous article, we explored how PTP switches utilize hardware timestamping to relentlessly minimize synchronization errors down to the nanosecond level. However, there…
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Data Center Network vs Campus Network: One Article to Fully Demystify the Difference
In a lot of project evaluations, people always end up asking the same question: what's actually the difference between a data center switch and…
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AOC vs DAC vs ACC vs AEC Cables: Which Interconnect Is Right for Your Data Center?
Four interconnect technologies. One clear guide. Understand the trade-offs in distance, power, cost, and performance — so you can stop guessing and start deploying.
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Layer 2 vs Layer 2+ vs Layer 3 Switches: A Guide to L2/L2+/L3 Ethernet Switch Selection
When building a modern infrastructure, choosing among layer 2, layer 2+, and layer 3 switches often feels like a balancing game. Facing technical jargon…
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400G vs 800G Switch: How to Actually Choose for Your AI Network
As AI clusters continue to grow and data center traffic patterns evolve, choosing the right network is no longer just a matter of "how…
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