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Meta 103680 GB200 NVL72 CX-7 Hyperscaler NSF Ethernet Cluster Configuration
META-GB200-CX7-WB-103k-THEORY
Meta · GB200 · CX-7
Rack type
NVL72
Cluster / location
All Other Clusters
Buyer profile
Hyperscaler
Networking type
NSF Ethernet
Number of XPUs
103,680
NIC used
CX-7
NICs / XPU
1
Scale-out BW / XPU
400G
XPU / server
72
Scale-up network
8 rows
Assigned blockDefault
GB200 - NVL72
Scale-UpXPU: GB200 NVL728 linesshared by 10 SKUs
Scale-up Units are based on the scale-up world size (72 XPUs).
XPU World Size
2
WS| Scale-Up Network Layer | Part / Model | Units# | Unit BWGbit/s uni-d | Lane Count# | Lane BWGbit/s uni-d |
|---|---|---|---|---|---|
| XPUs per Node | · | 4 | 7,200 | 18 | 400 |
| Scale-Up World Size | · | 72 | 518,400 | · | · |
Switches
2
SW| Scale-Up Network Layer | Part / Model | Units# | Unit BWGbit/s uni-d | Lane Count# | Lane BWGbit/s uni-d |
|---|---|---|---|---|---|
| per Switch | Nvidia NVSwitch 5.0 (NVLink 5) | 18 | 28,800 | 72 | 400 |
| Scale-Up Switch Total | · | 18 | 518,400 | · | · |
Connections & cabling
8
CN| Scale-Up Network Layer | Part / Model | Units# | BW / PortGbit/s uni-d | Unit DP# | DP / Port# | Total DPs# | BW / Connector | Cable / Model | Cable Units# |
|---|---|---|---|---|---|---|---|---|---|
| Ultrapass to Switch | NV 2 UltraPass OverPass 144 DP 224Gb/s | 36 | 400 | 144 | 4 | 5,184 | 14,400 | · | · |
| Male Connectors | NV Paladin HD2 224Gb/s 144 DP (Male) | 36 | 400 | 144 | 4 | 5,184 | 14,400 | Already Counted Below | · |
| Female Connectors | NV Paladin HD2 224Gb/s 144 DP (Female) | 36 | 400 | 144 | 4 | 5,184 | 14,400 | Already Counted Below | · |
| Switch Total | ** Two connectors per switch | · | · | · | · | · | 28,800 | · | · |
| Male Connectors | NV Paladin HD2 224Gb/s 72 DP (Male) | 72 | 400 | 72 | 4 | 5,184 | 7,200 | Already Counted Below | · |
| Female Connectors | NV Paladin HD2 224Gb/s 72 DP (Female) | 72 | 400 | 72 | 4 | 5,184 | 7,200 | NV 224Gb/s SkewClear EXD Gen 2 Cable | 5,184 |
| XPU Total | ** One connector per GPU | · | · | · | · | · | 7,200 | · | · |
| · | NVL Spine Chassis (NvLink 5) | 2 | · | · | · | · | · | · | · |
Scale-Up Parts Summary
8
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Nvidia NVSwitch 5.0 (NVLink 5) | 25,920 | 18.00 | 0.25 |
| NV 2 UltraPass OverPass 144 DP 224Gb/s | 51,840 | 36.00 | 0.50 |
| NV Paladin HD2 224Gb/s 144 DP (Male) | 51,840 | 36.00 | 0.50 |
| NV Paladin HD2 224Gb/s 144 DP (Female) | 51,840 | 36.00 | 0.50 |
| NV Paladin HD2 224Gb/s 72 DP (Male) | 103,680 | 72.00 | 1.00 |
| NV Paladin HD2 224Gb/s 72 DP (Female) | 103,680 | 72.00 | 1.00 |
| NV 224Gb/s SkewClear EXD Gen 2 Cable | 7,464,960 | 5,184.00 | 72.00 |
| NVL Spine Chassis (NvLink 5) | 2,880 | 2.00 | 0.03 |
Backend network
7 rows
Assigned blockDefault
GB200 - NVL72 - CX7 - 4L - ETH - Minipack-3 OCP Rack - META
BackendXPU: GB200 NVL727 linesshared by 1 SKU
Backend Units are based on the cluster size (103,680 XPUs).
Switches
6
SW Network Layer | Switch and Server Spec | Aggregate Port Utilization | Network Bandwidth Aggregate | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SwitchPart Name / Model | Units# | Unit BWGbit/s | Port BWGbit/s | Downlink Ports / SW# | Uplink Ports / SW# | Max Ports# | Downlink Ports# | Uplink Ports# | Total Ports# | Downlink BWTbit/s | Uplink BWTbit/s | OversubRatio | |
| XPUs | · | 103,680 | 400 | 400 | 0 | 103,680 | 103,680 | 0 | 103,680 | 103,680 | 0 | 41,472 | · |
| NICs per Node | ConnectX-7 NIC - 400G | 4 | 400 | 100 | · | · | 8 | · | · | · | · | · | · |
| Leaf (RTSW) | Minipack-3 OCP Rack 51.2T | 2,160 | 51,200 | 400 | 48 | 48 | 128 | 103,680 | 103,680 | 276,480 | 41,472 | 41,472 | 1 |
| Spine (FTSW) | Minipack-3 OCP Rack 51.2T | 1,920 | 51,200 | 400 | 54 | 54 | 128 | 103,680 | 103,680 | 245,760 | 41,472 | 41,472 | 1 |
| Core (STSW) | Minipack-3 OCP Rack 51.2T | 1,080 | 51,200 | 400 | 96 | 24 | 128 | 103,680 | 25,920 | 138,240 | 41,472 | 10,368 | 4 |
| Super-Core (DTSW) | Arista 144T Modular Chassis (7800R4) | 144 | 144,000 | 400 | 360 | 0 | 360 | 51,840 | 0 | 51,840 | 20,736 | 0 | · |
Transceivers
7
CN Network Layer | Transceiver / CablePart Name / Model | Total Units# | Units per SW/GPU# | Unit BWGbit/s | Lanes# | BW per LaneGbit/s | Agg. BWTbit/s |
|---|---|---|---|---|---|---|---|
| XPU Nodes | None - AECs are Used -> | 103,680 | 103,680 | 400 | 8 | 50 | 41,472 |
| Leaf | |||||||
| Downlink | None - AECs are Used -> | 51,840 | 24 | 800 | 8 | 100 | 41,472 |
| Uplink | Generic 800G DR8 | 51,840 | 24 | 800 | 8 | 100 | 41,472 |
| Spine | |||||||
| Downlink | Generic 800G DR8 | 51,840 | 27 | 800 | 8 | 100 | 41,472 |
| Uplink | Generic 800G DR8 | 51,840 | 27 | 800 | 8 | 100 | 41,472 |
| Core | |||||||
| Downlink | Generic 800G DR8 | 51,840 | 48 | 800 | 8 | 100 | 41,472 |
| Uplink | Generic 800G 2xFR4 | 12,960 | 12 | 800 | 8 | 100 | 10,368 |
| Super-Core | |||||||
Cables
7
CB Network Layer | Cable/ FiberType | Total Units# | Units per Transceiver# | Unit BWGbit/s | Lane Count# | SerDes BWGbit/s |
|---|---|---|---|---|---|---|
| XPU Nodes | Generic 800G AEC | 51,840 | 0.5 | 800 | 8 | 100 |
| Leaf | ||||||
| Downlink | Already counted above | · | · | · | · | · |
| Uplink | Generic 400G Single Mode | 103,680 | 2 | 400 | 4 | 100 |
| Spine | ||||||
| Downlink | Already counted above | · | · | · | · | · |
| Uplink | Generic 400G Single Mode | 103,680 | 2 | 400 | 4 | 100 |
| Core | ||||||
| Downlink | Already counted above | · | · | · | · | · |
| Uplink | · | 25,920 | 2 | 400 | 4 | 100 |
| Super-Core | ||||||
Backend Parts Summary
7
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Generic 800G AEC | 51,840 | 36.00 | 0.50 |
| Generic 800G DR8 | 207,360 | 144.00 | 2.00 |
| Generic 400G Single Mode | 207,360 | 144.00 | 2.00 |
| ConnectX-7 NIC - 400G | 103,680 | 72.00 | 1.00 |
| Minipack-3 OCP Rack 51.2T | 5,160 | 3.58 | 0.05 |
| Generic 800G 2xFR4 | 38,880 | 27.00 | 0.38 |
| Arista 144T Modular Chassis (7800R4) | 144 | 0.10 | 0.00 |
Frontend network
11 rows
Assigned blockDefault
GB200 - NVL72 - Minipack-3 - META
FrontendXPU: GB200 NVL7211 linesshared by 1 SKU
Converged Frontend + Storage Fabric
11
| Layer | Part / Model | Units | Attach / XPU |
|---|---|---|---|
| · | Minipack-3 OCP Rack 51.2T | 1,245 | 0.0120 |
| · | Minipack-1 OCP Rack 12.8T | 5 | 0.0000 |
| · | WhiteBox Tomahawk 2 6.4T | 185 | 0.0018 |
| · | Generic 1GbE Ethernet | 1,522 | 0.0147 |
| · | Generic 800G DR8 | 60,207 | 0.5807 |
| · | Generic 400G DR4 | 59,894 | 0.5777 |
| · | Generic 100G DR4 QSFP28 | 26,578 | 0.2563 |
| · | Generic 800G Single Mode | 82,399 | 0.7947 |
| · | Generic 400G Single Mode | 422 | 0.0041 |
| · | Generic 100G Single Mode | 11,839 | 0.1142 |
| · | RJ45 Cables | 73,070 | 0.7048 |
Frontend Parts Summary
11
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| Minipack-3 OCP Rack 51.2T | 1,245 | 1 | 0.0120 |
| Minipack-1 OCP Rack 12.8T | 5 | 0 | 0.0001 |
| WhiteBox Tomahawk 2 6.4T | 185 | 0 | 0.0018 |
| Generic 1GbE Ethernet | 1,522 | 1 | 0.0147 |
| Generic 800G DR8 | 60,207 | 42 | 0.5807 |
| Generic 400G DR4 | 59,894 | 42 | 0.5777 |
| Generic 100G DR4 QSFP28 | 26,578 | 18 | 0.2563 |
| Generic 800G Single Mode | 82,399 | 57 | 0.7947 |
| Generic 400G Single Mode | 422 | 0 | 0.0041 |
| Generic 100G Single Mode | 11,839 | 8 | 0.1142 |
| RJ45 Cables | 73,070 | 51 | 0.7048 |
Compute Tray Networking Content
3 rows
Networking components inside the compute tray — accelerators, board-to-board connectors, retimers, and their per-tray bandwidth.
Assigned blockDefault
GB200 - NVL72 - Generic
Compute TrayXPU: GB200 NVL723 linesshared by 10 SKUs
| Tray layer | Part / Model | Units per Tray | Unit BWGb/s | Lanes | Lane BWGb/s | Per switch |
|---|---|---|---|---|---|---|
| XPUs per Tray | Blackwell 200 | 4 | · | · | · | · |
| Bianca Board | NV MCIO PCIe x16 Connector | 2 | · | · | · | · |
| Bianca Board | NV MCIO PCIe x16 Cable | 2 | · | · | · | · |
| Mezz Board to OSFP | NV DensiLink OverPass to OSFP Cage | 4 | · | · | · | · |
Compute Tray Parts Summary
3
| Item | Qty/Cluster | Qty/Server | Attach/XPU |
|---|---|---|---|
| NV MCIO PCIe x16 Connector | 51,840 | 36.00 | 0.50 |
| NV MCIO PCIe x16 Cable | 51,840 | 36.00 | 0.50 |
| NV DensiLink OverPass to OSFP Cage | 103,680 | 72.00 | 1.00 |