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Engineering notes, scaling guides and case studies on open networking — SONiC switching, VPP routing, optics and OpenWiFi.
How to Analyze Network Switch Performance: Key Metrics for AI & Data Center Fabrics
When evaluating enterprise or data center switches, many network engineers rely on simple datasheets listing port density and line rate. In modern AI compute…
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From KV Cache to RoCE: Why AI Inference Needs a High-Performance Network
As model size, context length, concurrency, and AI workloads grow, the memory and compute of a single GPU reach their limit. Inference systems then…
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LLM Inference and KV Cache: Where AI Inference Cost Comes From
Two concepts are required for anyone who uses large language models (LLMs) or builds applications on them: Inference and the KV Cache (key-value cache).…
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SMPTE ST 2110 Network Design Guide: PTP Timing, Multicast Control and Redundancy on SONiC
Broadcast production is moving from SDI-based workflows to fully IP-based architectures. We supports this transition with SONiC-based switches for two typical environments: OB vans…
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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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NPB GRE/VXLAN Tunnel Encapsulation: Overview and Configuration
As traffic analysis deployments grow more complex, directly connecting backend analysis tools to an NPB (Network Packet Broker) is often impractical. This article covers…
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Edge Router + PTP: Precision Timing at the Network Edge
In our previous article, we explored the evolving role of Edge Routers and Border Routers, as well as five core deployment scenarios for Border…
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Single-Mode vs Multimode Fiber: How to Choose the Right One
Nearly every difference between single-mode and multimode fiber traces back to one structural fact: core diameter. This one difference determines how light travels through…
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