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Upgrading to T1600 SIBs

 

To convert an operational T640 router to a T1600 router, you upgrade the standard SIBs or SIBs version B in the T640 router to T1600-SIBs or LCC-SIBs. You repeat the upgrade procedures for each of the five SIBs in the router.

Note

During the SIB upgrade:

  • The router should not experience packet loss if the traffic is less than 50 percent per Packet Forwarding Engine in each FPC.

  • The router might experience some packet loss if the traffic is more than 50 percent per Packet Forwarding Engine in each FPC, depending on the operational environment.

For more information, contact your customer support representative.

  1. Preparing to Upgrade the SIBs

  2. Removing a Standard SIB or SIB Version B

  3. Installing a T1600-SIB

  4. Verifying the Installation of a T1600-SIB

  5. Exiting Upgrade Mode

  6. Verifying Operation

Preparing to Upgrade the SIBs

To prepare to upgrade the SIBs:

  1. The T640 router must contain five standard SIBs or SIBs version B before the upgrade. Verify that four SIBs are in the Online state and one SIB is in the Spare state. Display the status of the SIBs by issuing the show chassis sibs command:
    user@host> show chassis sibs

    To bring a SIB online, issue the request chassis sib online operational mode command. To install additional SIBs, use the standard installation procedure described in the T640 Core Router Hardware Guide.

    Note

    Do not proceed with the upgrade until all five SIBs are present and operational.

  2. Enter configuration mode.
    user@host> configure
  3. Include the fabric upgrade-mode statement in the configuration at the [edit chassis] hierarchy level.
    user@host# set chassis fabric upgrade-mode
  4. Commit the configuration:

    • If GRES is enabled, commit the configuration on both the master and the backup Routing Engines:

      user@host# commit synchronize
    • If GRES is not enabled, commit the configuration on the master Routing Engine:

      user@host# commit
  5. Exit configuration mode.
    user@host# exit

Removing a Standard SIB or SIB Version B

Note

Replace the spare SIB first, and verify the operation of the replacement before replacing the other SIBs.

To remove a standard SIB or SIB version B:

  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. Take the SIB offline by using one of the following methods:
    • Press and hold the ONLINE/OFFLINE button on the SIB faceplate for about five seconds until the OK LED is not lit.

    • Issue the request chassis sib offline command. For example:

      user@host> request chassis sib offline slot 0
      Note

      When you bring an active SIB offline, the spare SIB becomes active and transitions to the Online state.

  3. Loosen the captive screws (using a Phillips (+) screwdriver, number 2) on the ejector handles on each side of the SIB faceplate.
  4. Flip the ejector handles outward to unseat the SIB.
  5. Grasp both ejector handles, pull firmly, and slide the SIB about three-quarters of the way out of the chassis.
  6. Place one hand underneath the SIB to support it and slide it completely out of the chassis. Place the SIB on the antistatic mat.Caution

    Do not stack hardware components on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.

Figure 1: Removing a SIB from a T640 Router
Removing a SIB from a T640
Router
Figure 2: Standard SIB Supported in a T640 Router
 Standard SIB Supported in a T640
Router

Installing a T1600-SIB

Each T1600-SIB weighs approximately 6.5 lb (3 kg). To install a T1600-SIB (see Figure 3):

  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. Place one hand underneath the T1600-SIB to support it. With the other hand, hold one of the ejector handles on the T1600-SIB faceplate.
  3. Carefully align the sides of the T1600-SIB with the guides inside the chassis.
  4. Slide the T1600-SIB into the chassis, carefully ensuring that it is correctly aligned.
  5. Grasp both ejector handles and press them inward to seat the T1600-SIB. Ensure that the ejector handle tabs are properly mated inside their corresponding chassis slots. You might have to close and open the handles a few times before the tabs catch the slots.
  6. Tighten the captive screws on the ejector handles.
  7. Bring the T1600-SIB online using one of the following methods:

    • Press and hold the ONLINE/OFFLINE button on the T1600-SIB faceplate. The green OK LED on the faceplate begins to blink. Hold the button down until the LED blinks.

    • Issue the following CLI command on the router:

      user@host> request chassis sib online slot 0
Figure 3: Installing a T1600-SIB
Installing a T1600-SIB

Verifying the Installation of a T1600-SIB

To verify that the T1600-SIB is functioning normally:

  1. Check the LEDs on the T1600-SIB faceplate.
    • The green OK LED should light steadily a few minutes after the T1600-SIB is installed.

    • If the FAIL LED is lit steadily, remove and install the T1600-SIB again. Make sure that the T1600-SIB is seated properly. If the FAIL LED still lights steadily, the T1600-SIB is not functioning properly. Contact your customer support representative.

  2. Verify that four T1600-SIB are in the Online state and one SIB is in the Spare state. Display the status of the T1600-SIB by issuing the show chassis sibs command:
    user@host> show chassis sibs

    To bring a T1600-SIB online, issue the request chassis sib online operational mode command.

Exiting Upgrade Mode

After all five T1600-SIBs have been installed, exit upgrade mode:

  1. Determine if graceful Routing Engine switchover (GRES) is enabled.
    user@host> show system switchover
  2. Verify that the Routing Engines are operating properly by issuing the show chassis routing-engine command.
    user@host> show chassis routing-engine
  3. Enter configuration mode.
    user@host> configure
  4. Delete the fabric upgrade-mode statement in the configuration at the [edit chassis] hierarchy level.
    user@host# delete chassis fabric upgrade-mode
  5. Commit the configuration:

    • If GRES is enabled, commit the configuration on both the master and the backup Routing Engines:

      user@host# commit synchronize
    • If GRES is not enabled, commit the configuration on the master Routing Engine:

      user@host# commit
  6. Exit configuration mode.
    user@host# exit

Verifying Operation

Use the following commands to verify proper operation of the T1600 router:

  1. Verify that the model number is now T1600 by issuing the show version command.
    user@host> show version
  2. Verify that no alarms are present by issuing the show chassis alarms command.
    user@host> show chassis alarms
  3. Verify that the LEDs and indicators on the craft interface show that the router is operating properly by issuing the show chassis craft-interface command.
    user@host> show chassis craft-interface
  4. Verify that all FPCs in the router are detected and online by issuing the show chassis fpc and show chassis hardware commands.
    user@host> show chassis fpc
    user@host> show chassis hardware
  5. Verify that all interfaces in the router are up by issuing the show interfaces terse command:
    user@host> show interfaces terse