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Remove the QFX5700 Switch

To power off and remove a QFX5700 Switch, read the following sections.

Power Off a QFX5700 Switch

Before you power off a QFX5700 switch.

  • Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you don’t need to forward traffic through the switch.

  • Ensure that you have the following parts and tools available to power off the switch:

    • An ESD grounding strap

    • An external management device such as a PC

    • An RJ-45 to DB-9 rollover cable to connect the external management device to the console port on one of the Routing and Control Boards (RCBs)

To power off a QFX5700 switch:

  1. Connect to the switch using one of the following methods:

    • Connect a management device to the console (CON) port on an RCB.

    • Connect a management device to one of the two management (MGMT) ports on the RCB.

  2. Shut down Junos OS from the external management device by using the request node power-offnode operational mode CLI command followed by the request chassis cb slot 0|1. These commands shut down a single RCB gracefully and preserves system state information.

    You see the following output (or something similar) after entering the command:

    CAUTION:

    The final output of any version of the request node shutdown power-off command is the “System Haulted” message. Wait at least 60 seconds after first seeing this message before following the instructions in Step 4 and Step 5 to power off the switch.
  3. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to one of the ESD points on the chassis. One ESD point is located above the status LED panel on the front of the switch chassis, and the other ESD point is located in the rear below the power supplies.
  4. Disconnect power to the switch by performing one of the following tasks:

    • AC power supply—Set the enable switch to the off (O) position and gently pull out the coupler for the power cord from the faceplate.

    • DC power supply—Switch the circuit breaker on the panel board that services the DC circuit to the off position.

  5. Remove the power source cable from the power supply faceplate:

    • AC power supply—Remove the power cord from the power supply faceplate by detaching the power cord retainer and gently pulling out the power cord plug that is connected to the power supply faceplate.

    • DC power supply—Loosen the thumbscrews by securing the DC power connector on the power source cables. Remove the power source cables from the power supply.

  6. Remove any remaining cables and optics before you remove the chassis from the rack.

Remove a QFX5700 from a Four-Post Rack Using a Mechanical Lift

Before you remove the switch using a lift:

  • Ensure that the rack is stable and secured to the building.

  • Ensure that there is enough space to place the removed switch in its new location and along the path to the new location.

  • Review General Safety Guidelines and Warnings.

  • Review the chassis lifting guidelines described in Chassis and Component Lifting Guidelines.

  • Ensure that the switch is safely powered off.

  • Ensure that you have the following parts and tools to remove the switch:

    • A Phillips (+) screwdriver, number 2 or number 3, depending on the size of your mounting screws

CAUTION:

When removing more than one switch chassis from a rack, remove the switches in order from top to bottom.

Because of the switch's size and weight, we strongly recommend that you use a mechanical lift to install the QFX5700.

To remove the switch using a mechanical lift:

  1. Use the appropriate Phillips (+) screwdriver to remove the 8 mounting screws that attach the chassis flange to the rack.
  2. Move the lift to the rack and position it so that its platform is centered about 0.5 in. (1.27 cm) below the bottom of the switch chassis and as close to it as possible.
  3. Carefully slide the switch from the adjustable mounting brackets attached to the rack onto the lift.
  4. Move the lift away from the rack and lower the platform on the lift (see Figure 1).
  5. Use the lift to transport the switch to its new location.
    Figure 1: Move the QFX5700 Using a Mechanical LiftMove the QFX5700 Using a Mechanical Lift

Manually Remove a QFX5700 from a Four-Post Rack

Before you manually remove the switch from a rack:

  • Ensure that the rack is stable and secured to the building.

  • Ensure that there is enough space to place the removed switch in its new location and along the path to the new location.

  • Review General Safety Guidelines and Warnings.

  • Review the chassis lifting guidelines described in Chassis and Component Lifting Guidelines.

  • Ensure that the switch is safely powered off.

  • Ensure that you have a Phillips (+) screwdriver, number 2 or number 3, depending on the size of your mounting screws.

If you cannot use a mechanical lift to remove the switch (the preferred method), you can install it manually.

CAUTION:

The chassis weighs approximately 110 lb (50 kg) with only the fan tray controllers installed. Lifting the chassis and mounting it in a rack or cabinet requires at least three people.

Make sure the chassis is empty (contains only the fan tray controllers) before you lift it.

CAUTION:

When removing more than one switch chassis from a rack, remove the switches in order from top to bottom.

To manually remove a QFX5700 from a rack:

  1. Remove all optics, line cards, RCBs, power supplies, fan trays, and FEBs before you attempt to move the switch chassis.

    Ensure that all of the removed components are stored in antistatic bags.

  2. Use the appropriate Phillips (+) screwdriver to remove the eight mounting screws that attach the chassis flange to the rack.
    Warning:

    To prevent injury, keep your back straight and lift with your legs, not your back. Do not twist your body as you lift. Balance the load evenly and be sure that your footing is firm.

  3. Position one person on each side and another in the rear of the chassis. There are two handles on the side, but these handles are only meant to help guide the empty chassis out of the base and rear brackets.
  4. On each side, hold the bottom of the chassis and carefully lift it up from the base and rear brackets on the four-post rack.
  5. Carefully lift it out of rack. If you have a pallet jack, move the switch onto the pallet jack. See Figure 2.
    Figure 2: Lift the QFX5700 Without Using a Mechanical LiftLift the QFX5700 Without Using a Mechanical Lift
  6. Carefully move the chassis to its new location.

    After moving the switch to its new location, reinstall the components in the chassis or store the components in antistatic bags.