Planning a QFX3000-G QFabric System Deployment

• The number of devices in the QFabric system and location—You can interconnect up to 128 QFX3500 Node devices and 4 QFX3008-I Interconnect Devices; each QFabric system must have 2 QFX3100 Director devices operating in a Director group. For information about the size and strength of racks for the devices, see the following topics:
  • Rack Requirements for a QFX3100 Director Device
  • Rack Requirements for a QFX3008-I Interconnect Device
  • Rack Requirements for a QFX3500 Device
  • Rack Requirements for EX4200 Switches

  For the dimensions and weights of the devices, see the following topics:

  • Chassis Physical Specifications for a QFX3100 Director Device
  • Chassis Physical Specifications for a QFX3008-I Interconnect Device
  • Chassis Physical Specifications for a QFX3500 Chassis
  • Chassis Physical Specifications for EX4200 Switches
• Cabling requirements for the control plane and management network—The control plane and management network are interconnected using standard 1000BASE-T Ethernet over copper wiring. Each network segment can be a maximum length of 100 m (328 ft). See Cable Specifications for Control Plane Connections for the QFX Series.
• Cabling requirements for the data plane—The data plane is interconnected using standard 40GBASE-SR 40-Gigabit Ethernet QSFP+ optical transceivers over fiber-optic wiring. If you use OM3 optical fiber, each network segment can be a maximum of 100 m (328 ft). If you use OM4 optical fiber, each network segment can be a maximum of 150 m (492 ft). However, keep in mind that each network segment in the control plane and management network is limited to a maximum length of 100 m (328 ft). See Interface Specifications for Data Plane Connections for the QFabric System .
• Power supply—You must plan the installation site to meet the power requirements of all the devices in the QFX3000 QFabric system. For information on power requirements and configuration options for each device, see the following topics:
  • AC Power Specifications for a QFX3100 Director Device
  • AC Power Specifications for a QFX3008-I Interconnect Device with Single-Phase Wiring Trays
  • AC Power Specifications for a QFX3008-I Interconnect Device with Three-Phase Delta Wiring Trays
  • AC Power Specifications for a QFX3008-I Interconnect Device with Three-Phase Wye Wiring Trays
  • AC Power Specifications for a QFX3500 Device
  • Power Specifications for EX4200 Switches
• For more information about the site preparation requirements for each device, see the following topics:
  • Site Preparation Checklist for a QFX3100 Director Device
  • Site Preparation Checklist for a QFX3008-I Interconnect Device
  • Site Preparation Checklist for a QFX3500 Device
  • Site Preparation Checklist for EX4200 Switches