Slot Numbering for a QFX3008-I Interconnect Device

The QFX3008-I Interconnect device accepts eight 16-port QSFP+ front cards, two Control Boards, eight rear cards, ten fan trays, six power supplies, and two wiring trays.

The slots on the chassis are numbered, and except for the cooling system, labels on the chassis describe the slot numbers:

• Front card slots—All eight slots for the front cards run vertically across the front of the chassis. The label for the front cards is at the bottom of the card cage on the front of the chassis, above the front panel display. The front card slots are labeled 0 through 7. In the command-line interface (CLI), the front cards are described as fpc 0 through fpc 7.
• Control Board slots—The two slots for the Control Boards run horizontally on the rear of the chassis. The label for the Control Board slots and the rear card slots is attached to the rear of the chassis along the right side. The Control Board slots are labeled CB 0 and CB 1.
• Rear card slots—All eight slots for the rear cards run horizontally in the rear of the chassis directly below the Control Board slots. The label for the Control Board slots and the rear card slots is attached to the rear of the chassis along the right side. The rear card slots are labeled 0 through 7 on the chassis. In the CLI, the rear card slots are described as fpc 8 through fpc 15.
• Cooling system—Eight side fan tray slots run vertically on the sides of the front of the chassis; four on one side of the chassis behind two identical access panels, four on the other side of the chassis behind two identical access panels. Each side fan tray has an air filter installed on it. The front fan tray and front panel display is installed at the bottom front of the chassis. The front air filter is installed directly below the front fan tray and front panel display, behind a hinged door. The rear fan tray is installed behind a hinged door at the top rear of the chassis. The fan tray and air filter slots are not numbered on the chassis.
• Power supply slots and wiring tray slots—The six power supply slots run vertically across the bottom rear of the chassis. The two wiring trays are installed on either side of the power supplies at the bottom rear of the chassis. The label for the power supplies and wiring trays is attached to the rear of the chassis directly above the power supplies and wiring trays. The power supply slots are labeled 0 through 5. The wiring tray slots are labeled Wiring Tray 0 and Wiring Tray 1.