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Maintaining the EX6210 SRE Module

 

Taking the SRE Module Offline in an EX6200 Switch

Before removing a Switch Fabric and Routing Engine (SRE) module from an EX6200 switch, take the module offline.

The SRE module performs switching and system management functions in an EX6200 switch. Your switch can have either one or two SRE modules.

Taking an SRE Module Offline in a Switch With Redundant SRE Modules

To take an SRE module offline in a switch with two SRE modules:

  1. Determine whether the SRE module is the master or backup using one of these methods:
    • Look at the MST (master) LED on the SRE module faceplate. If the MST LED is lit steady green, the SRE module is the master. If it is blinking green, the SRE 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 SRE 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 new master SRE module, 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 backup SRE module is halted. If the Routing Engine has not yet halted, the following step returns an error.
  5. Take the SRE module offline:

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


    where slot-number is either 4 or 5 .

  6. (Optional) Confirm that the SRE module is offline by verifying the state of slots 4 or 5:

    user@switch> show chassis fpc

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

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

To take the SRE module offline:

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

    user@switch> request system halt


    The SRE module is gracefully halted but not powered off. You will see the following output (or something similar, depending on the hardware being shutdown) after entering the command:

The final output of any version of this command is the The operating system has halted. Please press any key to rebootmessage. When this message appears, it is safe to remove the SRE module. The Routing Engine might take up to 5 minutes to gracefully halt.

Removing an SRE Module from an EX6200 Switch

You must remove the Switch Fabric and Routing Engine (SRE) module from the EX6200 switch chassis if you need to replace the module or if you need to remove switch components before moving the chassis without using a mechanical lift.

Caution

Do not lift the SRE 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 SRE module from being properly seated in the chassis.

Before you begin to remove an SRE module:

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

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

  • Antistatic bag or antistatic mat

  • Replacement SRE module or cover panels for the SRE module slot

    Note

    The cover panel for the SRE module slot consists of one SRE module filler panel and one line card cover panel.

To remove an SRE module from the switch (see Figure 2):

  1. Take the SRE module offline. See Taking the SRE Module Offline in an EX6200 Switch.
  2. Attach the antistatic 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. Unscrew the screws on each side of the SRE module by turning them counterclockwise using the screwdriver until they are lose.
  5. Pull both the ejector levers outwards, away from the faceplate of the SRE module, until they go no further. This causes the SRE module to unseat and slide out of the chassis slightly. Figure 1 shows the open position of the SRE module ejector levers.
    Figure 1: Open and Closed Position of the SRE Module Ejector Lever
    Open and Closed Position of
the SRE Module Ejector Lever
  6. Grasp both the ejector levers and pull the SRE module out to about halfway.
  7. Taking care not to touch the leads, pins, or solder connections, place one hand underneath the SRE module to support it and slide it completely out of the chassis.
    Figure 2: Removing an SRE Module from an EX6200 Switch
    Removing an SRE Module
from an EX6200 Switch
  8. Place the SRE module in the antistatic bag or on the antistatic mat.
  9. If you are not replacing the SRE module, place the SRE module filler panel and the line card cover panel over the empty slot, insert the screws through the holes on each side of the filler panel and cover panel, and tighten the screws by turning them clockwise with the screwdriver. See Figure 3.
    Figure 3: Installing the SRE Module Cover Panel
    Installing the
SRE Module Cover Panel
    Caution

    Do not overtighten the screws. Applying excessive force might damage the screws.

Installing an SRE Module in an EX6210 Switch

You can install either one or two Switch Fabric and Routing Engine (SRE) modules in an EX6210 switch. The SRE modules install horizontally in the front of the chassis in the slots labeled 4 and 5.

Note

We recommend that you install two SRE modules for redundancy. If you install only one SRE module, we recommend that you install it in slot 4.

Caution

Do not lift the SRE 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 SRE module from being properly seated in the chassis.

Before you begin installing an SRE module in an EX6210 switch:

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

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

To install an SRE module in an EX6210 switch (see Figure 6):

  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 SRE module out from the bag.
  3. Pull both the ejector levers outward, away from the faceplate of the SRE module, until they go no further. Figure 4 shows the open position of the ejector lever.
    Figure 4: Open and Closed Positions of the SRE Module Ejector Lever
    Open and Closed Positions of the SRE Module Ejector Lever
  4. If the slot has a SRE module cover panel on it, unscrew the four screws, two on either side of the SRE module filler panel, and two on either side of the line card cover panel, counterclockwise using the Phillips (+) screwdriver. See Figure 5. Remove the cover panel and the filler panel. Save both panels for later use.Note

    The SRE module cover panel includes one line card cover panel and one SRE module filler panel.

    Figure 5: SRE Module Cover Panel
    SRE Module Cover Panel
  5. Carefully align the sides of the SRE module with the guides inside the chassis. Caution

    You must install the SRE module in the slots labeled 4 or 5. Installing the SRE module in any other slot will damage the module.

  6. Ensuring that the SRE 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 SRE module until the levers are parallel to the faceplate and are fully engaged. Figure 4 shows the closed position of the ejector lever. Note

    Ensure that the SRE module is fully seated in the chassis. It must be fully seated in order for it to be powered up and function correctly.

  8. Tighten the captive screws, one on each side of the SRE module, by turning them clockwise using the Phillips (+) screwdriver. Caution

    Do not overtighten the screws. Applying excessive force might damage the screws or module.

  9. Verify that the SRE module is installed correctly and functioning normally by checking the LEDs on the faceplate of the SRE module.
Figure 6: Installing an SRE Module in an EX6210 Switch
Installing an SRE
Module in an EX6210 Switch