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Upgrading to an EX9200-SF3

 

If you are upgrading to the EX9200-SF3 from an older SF module, the Routing Engine must be upgraded to the first supported Junos release for the EX9200-SF3 (20.3.R1) before you install it in the EX9200-SF3. Also, we recommend that you update the recovery snapshot with the 20.3R1 or later image before you begin the upgrade. If the Routing Engine fails to boot from the primary image, it will attempt to boot from the recovery image. Since the older recovery image does not support the EX9200-SF3, the Routing Engine will crash if it attempts to boot from the old recovery image.

Caution

If you plug the Routing Engine into the EX9200-SF3 without first upgrading Junos to 20.3R1 or later, Junos might crash and go to a db prompt. Should this occur, you’ll need to recover the router by copying the Junos software image for the 20.3R1 or later release and then booting from the USB drive to install 20.3R1 Junos on the EX9200-SF3. The USB install will wipe out the router configuration and all user files on the Routing Engine.

Preparing the EX9200 Switch for an EX9200-SF3 Upgrade

To prepare the switch for the upgrade:

  1. Verify that the system runs Junos OS Release 20.3R1 or later by issuing the show version command on the switch.
    user@switch> show version
  2. If the system is NOT running Junos OS Release 20.3R1 or later, upgrade the software now.

    For information about how to verify and upgrade Junos OS, see the Junos OS Installation and Upgrade Guide.

Powering Off the Switch

You must power off the switch before you install EX9200-SF3. See Powering Off an EX9200 Switch.

Removing a Routing Engine from an SF Module

To remove a Routing Engine from an SF Module:

  1. Remove the cables connected to the Routing Engine.
  2. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  3. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  4. Loosen the captive screws on the top and bottom of the Routing Engine.
  5. Flip the ejector handles outward to unseat the Routing Engine.
  6. Grasp the Routing Engine by the ejector handles, and slide it about halfway out of the chassis.
  7. Place one hand underneath the Routing Engine to support it, and slide it completely out of the chassis.
  8. Place the Routing Engine on the antistatic mat.

Replacing the EX9200-SF or EX9200-SF2 with the EX9200-SF3

To replace the existing SF module with the EX9200-SF3:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Remove and replace the offline SF module with the EX9200-SF3.

Installing a Routing Engine into an EX9200-SF3

To install a Routing Engine into an EX9200-SF3:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Ensure that the ejector handles are not in the locked position. If necessary, flip the ejector handles outward.
  3. Place one hand underneath the Routing Engine to support it.
  4. Carefully align the sides of the Routing Engine with the guides inside the opening on the EX9200-SF3.
  5. Slide the Routing Engine into the EX9200-SF3 until you feel resistance, and then press the faceplate of the Routing Engine until it engages the connectors.
  6. Press both of the ejector handles inward to seat the Routing Engine.
  7. Tighten the captive screws on the top and bottom of the Routing Engine.
  8. Connect the management device cables to the Routing Engine.

Powering On the Switch

See Powering On an AC-Powered EX9200 Switch or Powering On a DC-Powered EX9200 Switch.

Completing the EX9200-SF3 Upgrade

To complete the upgrade procedure:

  1. Verify that the installation is successful and the EX9200-SF3 is online by issuing the show chassis environment cb command:
    user@switch> show chassis environment cb 0
    user@switch> show chassis environment cb 1

    Other details, such as, temperature, power, etc are also displayed along with the state.

  2. Verify that the fabric planes come online correctly by issuing the show chassis fabric summary command:
    user@switch> show chassis fabric summary
  3. Verify that the backup Routing Engine is back online by issuing the show chassis routing-engine 1 command:
    user@switch> show chassis routing-engine 1
  4. Verify that the EX9200-SF3s appear in output from the show chassis hardware command:
    user@switch> show chassis hardware