Ethernet · RoCE · InfiniBand
AI 集群 Spine-Leaf 组网计算器
把 GPU 服务器连接需求换算成可复核的 Leaf、Spine、Pod 和介质规划。计算器会区分物理笼口与拆分后的逻辑端口，并明确标注未来产品或芯片参考平台。
计算结果
计算方法
端点可按共享 Leaf 容量或 GPU Rail 隔离放置。求解器枚举完整物理笼口的上下行划分，剔除超过超售目标的方案，再检查 Spine 端口密度、两层 Pod 上限及单台 Spine 故障后的容量。
oversubscription = (D × endpoint rate) ÷ (U × uplink rate)
规划边界
结果是架构和数量估算，不是可直接下单的物料清单。拆分支持、光模块、线缆距离、固件、电源、散热、Rail 映射和具体 SKU 仍须向厂商核验。
平台证据
端口规格与供货状态来自所列厂商来源。所有容量统一按单方向线速计算，避免把全双工宣传数字重复计入。
平台证据 (2026-07-26)
| Vendor / model | Protocol | Line rate | Status |
|---|---|---|---|
| Broadcom Tomahawk 5 BCM78900 | ethernet | 51.2 Tb/s | Silicon reference — select a shipping system for procurement |
| Broadcom Tomahawk 6 family | ethernet | 102.4 Tb/s | Silicon reference — system profiles vary |
| Juniper QFX5240-64OD | ethernet | 51.2 Tb/s | Current documented platform |
| Juniper QFX5250-64OE-L | ethernet | 102.4 Tb/s | Shipping; confirm exact orderability |
| Arista 7060X6-64PE | ethernet | 51.2 Tb/s | Current product |
| Arista 7060XE7-64PS | ethernet | 102.4 Tb/s | Planning reference — announced availability Q4 2026 |
| Arista 7800R4-AI | ethernet | 460.8 Tb/s | Catalog reference — modular chassis solver required |
| Cisco N9364E-SG2-O | ethernet | 51.2 Tb/s | Current documented platform |
| Cisco N9364E-SP2R | ethernet | 51.2 Tb/s | Current documented spine |
| Cisco N9164E-NS4-O | ethernet | 51.2 Tb/s | Planning reference — confirm SKU lifecycle and orderability |
| Ruijie RG-S6990-64OC2XS | ethernet | 51.2 Tb/s | Current product page |
| Ruijie RG-S6990-128QC2XS | ethernet | 51.2 Tb/s | Current product |
| NVIDIA SN5400 | ethernet | 25.6 Tb/s | Current documentation; confirm exact SKU/NOS lifecycle |
| NVIDIA SN5600 | ethernet | 51.2 Tb/s | Current documentation; confirm exact SKU/NOS lifecycle |
| NVIDIA SN5610 | ethernet | 51.2 Tb/s | Current documentation; confirm exact SKU/NOS lifecycle |
| NVIDIA SN3420 | ethernet | 4.8 Tb/s | Model disambiguation only |
| NVIDIA QM9700 | infiniband | 25.6 Tb/s | Mass Production |
| NVIDIA QM9790 | infiniband | 25.6 Tb/s | Mass Production |
| NVIDIA Q3400-RA | infiniband | 115.2 Tb/s | Planning reference — NVIDIA lifecycle P-Rel |
| NVIDIA Q3450-LD | infiniband | 115.2 Tb/s | Prototype planning reference |