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Maintaining the EX8216 Host Subsystem

 

Taking the RE Module Offline in an EX8216 Switch

Before removing a Routing Engine (RE) module from an EX8216 switch, take the module offline.

The RE module performs switching and system management functions in an EX8216 switch. Your switch can have either one or two RE modules.

Taking an RE Module Offline in a Switch with Redundant RE Modules

To take an RE module offline:

  1. Determine whether the RE module is the master or backup using one of these methods:
    • Look at the MS (master) LED on the RE module faceplate. If the MS LED is lit steady green, the RE module is the master. If it is blinking green, the RE module is the backup.

    • Issue the following CLI command:



      user@switch> show chassis routing-engine

      Routing Engine status:

      Slot 0: Current state Master

      Election priority Master (default) ...
  2. If the RE module that you want to remove is the master, make it the backup module:

    user@switch> request chassis routing-engine master switch
  3. From the master, halt the other Routing Engine:

    user@switch> request system halt other-routing-engine
  4. Wait a minute or two for the Routing Engine to halt before proceeding. If you are using a console connection, you will see a message when the system is halted. If the Routing Engine has not yet halted, the following step returns an error.
  5. Take the backup RE module offline:

    user@switch> request chassis cb offline slot slot-number


    where slot-number is either 0 (slot SRE0) or 1 (slot SRE1).

  6. (Optional) Confirm that the RE module is offline:

    user@switch> show chassis environment cb

If the state field in the command output shows that the module is offline, then it is safe to remove the RE module.

Taking an RE Module Offline in a Switch With One RE Module

To take the RE module offline:

  1. Connect to the console port on the RE module.
  2. From the console, halt the RE module:

    user@switch> request system halt


    The RE module is gracefully halted but not powered off.

When a message appears confirming that the operating system has halted, it is safe to remove the RE module. The Routing Engine might take up to 5 minutes to gracefully halt.

Removing an RE Module from an EX8216 Switch

You must remove the Routing Engine (RE) module from the EX8216 switch chassis if you need to replace the module.

Caution

Do not lift the RE module by holding the ejector levers. The levers cannot support the weight of the module. Lifting the module by the levers might bend the levers. Bent levers will prevent the RE module from being properly seated in the chassis.

Before you begin to remove an RE module:

Ensure that you have the following parts and tools available to remove an RE module:

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

  • Antistatic bag or antistatic mat

  • Replacement RE module or cover panel for the RE module slot

To remove an RE module from an EX8216 switch (see Figure 1):

  1. Take the RE module offline. See Taking the RE Module Offline in an EX8216 Switch.
  2. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. Place the antistatic bag or antistatic mat on a flat, stable surface.
  4. Loosen the screws on each side of the RE module by turning them counterclockwise using the screwdriver until they are completely unseated.
  5. Pull both ejector levers outwards, away from the faceplate of the RE module, until they go no further. This action causes the RE module to slide out of the chassis slightly.
  6. Grasp the ejector levers and pull the RE module out to about halfway.
  7. Taking care not to touch the leads, pins, or solder connections, place one hand underneath the RE module to support it and slide it completely out of the chassis.
  8. Place the RE module in the antistatic bag or on the antistatic mat.
  9. If you are not replacing the RE module, place the cover panel over the empty slot, insert the screws through the holes on each side of the cover panel, and tighten the screws with the screwdriver.
Figure 1: Removing an RE Module from an EX8216 Switch
Removing an RE Module
from an EX8216 Switch

Installing an RE Module in an EX8216 Switch

You can install either one or two Routing Engine (RE) modules in an EX8216 switch. The RE modules install horizontally in the front of the chassis in the slots labeled RE0 and RE1. See Slot Numbering for an EX8216 Switch.

Note

We recommend that you install two RE modules for redundancy. If you install only one RE module, we recommend that you install it in the slot RE0.

Caution

Do not lift the RE module by holding the ejector levers. The levers cannot support the weight of the module. Lifting the modules by the levers might bend the levers, and the bent levers will prevent the RE module from being properly seated in the chassis.

Before you begin installing an RE module in an EX8216 switch:

Ensure that you have the following parts and tools available to install an RE module:

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

To install an RE module in an EX8216 switch (see Figure 2):

  1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Taking care not to touch the leads, pins, or solder connections, pull the RE module out from the bag.
  3. Pull both the ejector levers outward, away from the faceplate of the RE module, until they go no further.
  4. If the slot has a cover panel on it, unscrew the two screws on either side of the cover panel counterclockwise using the Phillips (+) screwdriver, number 2. Remove the cover panel. Save the cover panel for later use.
  5. Carefully align the sides of the RE module with the guides inside the chassis.
  6. Ensuring that the RE module is correctly aligned, carefully slide it into the chassis until you feel resistance.
  7. Push both the ejector levers towards the faceplate of the RE module until the levers are flush against the faceplate and are fully engaged.
  8. Tighten the screws, one on each side of the RE module, by turning them clockwise using the Phillips (+) screwdriver, number 2. Ensure that the RE module is fully seated in the chassis. It must be fully seated in order for it to be powered up.
  9. Verify that the RE module is installed correctly and functioning normally by checking the LEDs on the faceplate of the RE module. The ON LED and ST LED should be lit steady green a few minutes after the RE module is installed.

    If the ON LED is unlit, verify that there are enough power supplies installed. See Calculating Power Requirements for an EX8216 Switch. If more power supplies are needed, install additional power supplies. See Installing an AC Power Supply in an EX8200 Switch or see Installing a DC Power Supply in an EX8200 Switch. If there are enough power supplies in the switch, remove and install the RE module again. See Removing an RE Module from an EX8216 Switch.

    If the ST LED is lit steady yellow, the RE module has failed. Remove the module and install a new RE module. See Removing an RE Module from an EX8216 Switch.

Figure 2: Installing an RE Module in an EX8216 Switch
Installing an RE Module
in an EX8216 Switch

Taking the SF Module Offline in an EX8216 Switch

Before removing a Switch Fabric (SF) module from an EX8216 switch, take the module offline.

The SF modules provide switching functionality for an EX8216 switch. Your switch can have eight SF modules. We recommend that you install all eight SF modules for normal switch operation.

To take the SF module offline:

  1. Enter the following CLI command:

    user@switch> request chassis sib offline slot slot-number


    where the slots are numbered from 0 through 7. See Slot Numbering for an EX8216 Switch.

  2. Confirm that the SF module is offline:

    user@switch# show chassis sibs slot-number

    When the state field in the command output shows that the SF module is offline, it is safe to remove and replace the SF module. See Removing an SF Module from an EX8216 Switch.

Removing an SF Module from an EX8216 Switch

You must remove the Switch Fabric (SF) module from the EX8216 switch if you need to replace the module.

An EX8216 switch can have up to eight SF modules. All SF modules are installed in the rear of the chassis in the slots labeled SF7 through SF0. We recommend that all eight SF modules be installed in the chassis at all times.

Note

Do not lift the SF module by holding the ejector levers. The levers cannot support the weight of the module. Lifting the modules by the levers might bend the levers. Bent levers will prevent the SF module from being properly seated in the chassis.

Use the handle provided on the faceplate of each SF module to lift the module.

Before you begin to remove an SF module:

Ensure that you have the following parts and tools available to remove an SF module:

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

  • Antistatic bag or antistatic mat

  • Replacement SF module



To remove an SF module (see Figure 3):

  1. Before you remove an SF module, take it offline. See Taking the SF Module Offline in an EX8216 Switch.
  2. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to the ESD point on the chassis.
  3. Place the antistatic bag or antistatic mat on a flat, stable surface.
  4. Loosen the screws on each side of the SF module by turning them counterclockwise using the screwdriver until they are completely unseated.
  5. Pull both ejector levers outwards simultaneously, away from the faceplate of the SF module, until they go no further. This action causes the SF module to slide out of the chassis slightly.
  6. Grasp the handle on the faceplate of the SF module with one hand and pull the SF module to about halfway out.
  7. Taking care not to touch the leads, pins, or solder connections, place one hand on the base of the SF module to support its weight, and slide it out of the chassis completely.
  8. Place the SF module in the antistatic bag or on the antistatic mat.
Figure 3: Removing an SF Module from an EX8216 Switch
Removing an SF Module
from an EX8216 Switch

Installing an SF Module in an EX8216 Switch

You can install up to eight Switch Fabric (SF) modules in an EX8216 switch. All shipping configurations of an EX8216 switch include eight SF modules. See EX8216 Switch Configurations.

The SF modules are installed vertically in the rear of the chassis in the slots labeled SF7 through SF0.

Note

You can install SF modules in any slot. You do not have to install the SF modules in serial order.

Note

Do not lift the SF module by holding the ejector levers. The levers cannot support the weight of the module. Lifting the module by the levers might bend the levers. Bent levers prevent the SF module from being properly seated in the chassis.

Use the handle provided on the faceplate of each SF module to lift the module.

Before you begin installing an SF module in an EX8216 switch:

Ensure that you have the following parts and tools available to install an SF module:

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

To install an SF module (see Figure 4):

  1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Taking care not to touch the leads, pins, or solder connections, pull the SF module out from the bag.
  3. Pull both the ejector levers outwards, away from the faceplate of the SF module, until they go no further.
  4. Turn the SF module so that you can insert it in one of the vertical slots, then hold the handle with one hand and support the base of the SF module with the other hand as you align the SF module with the guides inside the chassis.
  5. Ensuring that the module remains correctly aligned, slide the SF module into the chassis until you feel resistance.

    Ensure the ejector levers are engaged in the horizontal ejector rail. If the levers are not engaged, push the module’s faceplate just inside the hinges of the levers till the ejectors are engaged in the ejector rail.

  6. Push both the ejector levers simultaneously towards the faceplate of the SF module until the levers are flush against the faceplate and are fully engaged.
  7. Tighten the screws on each side of the SF module by turning them clockwise using the Phillips (+) screwdriver, number 2. Ensure that the SF module is fully seated in the chassis.
  8. Verify that the SF module is installed correctly and functioning normally by checking the LEDs on the faceplate of the SF module. The ST LED and SF LED should be lit steady green a few minutes after the SF module is installed.

    If the ST LED is unlit, check whether there are enough power supplies installed. See Calculating Power Requirements for an EX8216 Switch. If more power supplies are needed, install additional power supplies. See Installing an AC Power Supply in an EX8200 Switch or Installing a DC Power Supply in an EX8200 Switch. If there are enough power supplies in the switch, remove and install the SF module again. See Removing an SF Module from an EX8216 Switch.

    If the ST LED or the SF LED is lit steady yellow, the SF module has failed. Remove the SF module and install a new one. See Removing an SF Module from an EX8216 Switch.

Figure 4: Installing an SF Module in an EX8216 Switch
Installing an SF Module
in an EX8216 Switch