leaf-spine | BestHub

Architects' Tech Alliance

May 3, 2024 · Fundamentals

From OSI Model to RDMA: High‑Performance Networking, Leaf‑Spine Architecture, and Switch Selection

This article examines the evolution of network protocols from the OSI seven‑layer model and TCP/IP to RDMA technologies such as InfiniBand and RoCE, compares traditional three‑tier and leaf‑spine data‑center designs, and evaluates Ethernet, InfiniBand, and RoCE switches for high‑throughput, low‑latency HPC environments.

High Performance ComputingInfiniBandRDMA

0 likes · 13 min read

From OSI Model to RDMA: High‑Performance Networking, Leaf‑Spine Architecture, and Switch Selection

Architects' Tech Alliance

Nov 26, 2023 · Fundamentals

Switches: Computing Base and New Opportunities (2023) – Definitions, Classifications, Architecture, and Applications

This article provides a comprehensive overview of network switches, covering global market trends, definitions, OSI‑based classifications, hardware components, various switching architectures such as CLOS and leaf‑spine, performance metrics, differences from hubs and routers, industrial switch requirements, and the overall industry chain.

CLOSdata centerindustrial

0 likes · 15 min read

Switches: Computing Base and New Opportunities (2023) – Definitions, Classifications, Architecture, and Applications

Architects' Tech Alliance

Jun 3, 2021 · Cloud Computing

Leaf‑Spine Architecture in Large‑Scale Data Centers: Structure, Equipment Breakdown, and CAPEX Analysis

The article explains the leaf‑spine network architecture introduced by Facebook, details its three layers (cabinet, Leaf, Spine), quantifies the required servers, switches and optical modules per cabinet, and analyzes the associated CAPEX for ultra‑large cloud data centers.

CAPEXdata centerleaf-spine

0 likes · 11 min read

Leaf‑Spine Architecture in Large‑Scale Data Centers: Structure, Equipment Breakdown, and CAPEX Analysis

Qunar Tech Salon

Jun 22, 2018 · Operations

Evolution of Data Center Network Architecture at Qunar: From Traditional STP to Leaf‑Spine and VXLAN

The article outlines Qunar's data‑center network evolution, describing the limitations of traditional STP‑based designs, the adoption of vPC for active‑active redundancy, the transition to leaf‑spine topology for scalability, and the implementation of VXLAN to support large‑scale multi‑tenant cloud environments.

VPCVxLANdata center

0 likes · 8 min read

Evolution of Data Center Network Architecture at Qunar: From Traditional STP to Leaf‑Spine and VXLAN