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Default Hyperscaler 18432 VR300 CPX CX-9 Neocloud Giant Ethernet Cluster Configuration

OTHER-RubinUltra CPX-Eth

Default Hyperscaler · VR300 CPX · CX-9

Rack type
—
Cluster / location
Default VR300 CPX
Buyer profile
Hyperscaler
Networking type
Ethernet
Number of XPUs
18,432
NIC used
CX-9
NICs / XPU
1
Scale-out BW / XPU
1.6T
XPU / server
144

Scale-up network

Assigned blockDefault
VR300 CPX
Scale-UpXPU: VR300 CPX0 linesshared by 2 SKUs

Scale-up Units are based on the scale-up world size (144 XPUs).

XPU World Size

2
WS
Scale-Up Network LayerPart / Model
Units#
Unit BWGbit/s uni-d
Lane Count#
Lane BWGbit/s uni-d
XPUs per Node·8···
Scale-Up World Size·1440··

Switches

1
SW
Scale-Up Network LayerPart / Model
Units#
Unit BWGbit/s uni-d
Lane Count#
Lane BWGbit/s uni-d
Scale-Up Switch Total··0··

Connections & cabling

3
CN
Scale-Up Network LayerPart / Model
Units#
BW / PortGbit/s uni-d
Unit DP#
DP / Port#
Total DPs#
BW / ConnectorCable / Model
Cable Units#
Male Connectors·······Already Counted Below·
Female Connectors·······Already Counted Below·
Switch Total
Male Connectors·······Already Counted Below·
Notes
  • Scale-Up World Size — >>18 trays of 8 CPX per rack

Scale-Up Parts Summary

0
ItemQty/ClusterQty/ServerAttach/XPU

Backend network

4 rows
Assigned blockDefault
VR300 CPX - CX10 - 3L - ETH - TH6 - Generic
BackendXPU: VR300 CPX4 linesshared by 1 SKU

Backend Units are based on the cluster size (18,432 XPUs).

Switches

5
SW
 Network Layer
Switch and Server SpecAggregate Port UtilizationNetwork 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·18,4321,6001,600018,43218,432018,43218,432029,491.2·
NICs per NodeConnectX-10 NIC - 1.6T81,600···8······
LeafBlackBox Tomahawk 6 102.4T576102,4001,60032326418,43218,43236,86429,491.229,491.21
SpineBlackBox Tomahawk 6 102.4T576102,4001,60032326418,43218,43236,86429,491.229,491.21
CoreBlackBox Tomahawk 6 102.4T288102,4001,60064·6418,432018,43229,491.20·

Transceivers

6
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 NodesGeneric 1.6T DR8 (SiPho)36,86436,8641,600820058,982.4
Leaf
DownlinkGeneric 1.6T DR8 (SiPho)18,432321,600820029,491.2
UplinkGeneric 1.6T DR8 (SiPho)18,432321,600820029,491.2
Spine
DownlinkGeneric 1.6T DR8 (SiPho)18,432321,600820029,491.2
UplinkGeneric 1.6T DR8 (SiPho)18,432321,600820029,491.2
Core
DownlinkGeneric 1.6T DR8 (SiPho)18,432641,600820029,491.2
Uplink·······
Super-Core

Cables

6
CB
 Network Layer
Cable/ FiberType
Total Units#
Units per Transceiver#
Unit BWGbit/s
Lane Count#
SerDes BWGbit/s
XPU NodesGeneric 800G DR4 Single Mode73,72828004200
Leaf
DownlinkAlready counted above·····
UplinkGeneric 800G DR4 Single Mode36,86428004200
Spine
DownlinkAlready counted above·····
UplinkGeneric 800G DR4 Single Mode36,86428004200
Core
DownlinkAlready counted above·····
Uplink······
Super-Core

Backend Parts Summary

4
ItemQty/ClusterQty/ServerAttach/XPU
Generic 1.6T DR8 (SiPho)129,0241,008.007.00
Generic 800G DR4 Single Mode147,4561,152.008.00
ConnectX-10 NIC - 1.6T18,432144.001.00
BlackBox Tomahawk 6 102.4T1,44011.250.08

Frontend network

No converged frontend + storage fabric data for this cluster.

Frontend Parts Summary

0
ItemQty/ClusterQty/ServerAttach/XPU

Compute Tray Networking Content

Networking components inside the compute tray — accelerators, board-to-board connectors, retimers, and their per-tray bandwidth.

Assigned blockDefault
VR300 CPX - Generic
Compute TrayXPU: VR300 CPX0 linesshared by 2 SKUs
Tray layerPart / ModelUnits per Tray
Unit BWGb/s
Lanes
Lane BWGb/s
Per switch

Compute Tray Parts Summary

0
ItemQty/ClusterQty/ServerAttach/XPU