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Installing or Upgrading the Internal Compact Flash Disk in a Routing Engine

To install or upgrade the internal compact flash disk in a Routing Engine, perform the procedures in the following sections:

Tools and Parts Required

To replace hardware components, you need the following tools and parts:

Manually Switching from Master to Backup Routing Engine

On routers with two Routing Engines, one Routing Engine is the master and one is the backup. By default, the Routing Engine in slot 0 is the master and the one in slot 1 is the backup. If you are upgrading the master Routing Engine, you can switch mastership so that routing can continue during the upgrade.

To switch Routing Engine mastership:

  1. Enter CLI operational mode, and issue the following command to copy the currently running and active file system partitions on the router to standby partitions on the internal compact flash disk.

    user@host> request system snapshot

    Wait until a message appears on the console confirming that the procedure is complete.

    For more information about the command, see the JUNOS System Basics and Services Command Reference.

  2. To determine which Routing Engine is the master, issue the following CLI command. The master Routing Engine is marked as Master in the Current state field:

    user@host> show chassis routing-engine

  3. If the Routing Engine you are removing is the master, issue the following CLI command to switch mastership to the standby host module:

    user@host> request chassis routing-engine master switch

    If the Routing Engines are running JUNOS Release 6.0 or later and are configured for graceful switchover, the standby Routing Engine immediately assumes Routing Engine functions and there is no interruption to packet forwarding. Otherwise, packet forwarding halts while the standby Routing Engine becomes the master and the Packet Forwarding Engine components reset and connect to the new master Routing Engine. For information about configuring graceful switchover, see the section about Routing Engine redundancy in the JUNOS System Basics Configuration Guide.

    Note: Router performance might change if the standby Routing Engine's configuration differs from the former master's configuration. For the most predictable performance, configure the two Routing Engines identically, except for parameters unique to a Routing Engine, such as the hostname defined at the [edit system] hierarchy level and the management interface (fxp0 or equivalent) defined at the [edit interfaces] hierarchy level.

    To configure Routing Engine-specific parameters and still use the same configuration on both Routing Engines, include the appropriate configuration statements under the re0 and re1 statements at the [edit groups] hierarchy level and use the apply-groups statement. For instructions, see the JUNOS System Basics Configuration Guide.

Removing a Routing Engine

To remove a Routing Engine, follow this procedure:

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. If the router is not powered down already, use the console or other management device connected to the Routing Engine you are removing to enter CLI operational mode and issue the following command. The command shuts down the Routing Engine cleanly, so its state information is preserved:

    user@host> request system halt

    Wait until a message appears on the console confirming that the operating system has halted.

    For more information about the command, see the JUNOS System Basics and Services Command Reference.

    Note: The CFEB might continue forwarding traffic for approximately 5 minutes after the request system halt command has been issued.

    Note: If the router is using a single Routing Engine, it continues forwarding traffic for a few minutes after the request system halt command has been issued. If the router uses more than one Routing Engine, it continues forwarding traffic with a brief halt while mastership is switched.

  4. If there is a cover over the Routing Engine, unscrew the screws holding the cover in place and remove the cover.
  5. Remove the Routing Engine using one of the following methods:
  6. Grasp the handle or, if the Routing Engine does not have a handle, grasp the ejector handles and slide the unit about halfway out of the chassis.

    Caution: Be careful to slide the Routing Engine straight out of the chassis. Damage can result if it gets lodged because of uneven movement.

  7. Place one hand under the Routing Engine to support it, slide it completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.

Removing or Inserting the Compact Flash Disk Secured by a Clasp

The internal compact flash disk is located in a slot on the Routing Engine board and is secured by a plastic or wire clasp on the following Routing Engines:

For more information on removing or inserting the compact flash disk for these Routing Engines, see the following procedures:

Removing the Internal Compact Flash Disk

To remove the internal compact flash disk, follow this procedure (see Figure 1 or Figure 2):

Note: Depending on your configuration, the router might not have an internal compact flash disk. If there is no internal compact flash disk installed, you can proceed directly to the next section, Inserting the Internal Compact Flash Disk.

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. Remove the Routing Engine as described in Removing a Routing Engine.
  4. Use needlenose pliers with grooved jaws to pull the wire clasp out from under the compact flash disk and lift it up (see Figure 1 or Figure 2).
  5. Use the needlenose pliers to gently grasp the compact flash disk and slide it out of the connector. Place the compact flash disk on the antistatic mat or in the electrostatic bag.

Figure 1: Removing the Internal Compact Flash Disk from a Routing Engine 400, 850, S-1300, or S-2000

Image g003214.gif

Figure 2: Removing the Internal Compact Flash Disk from a Routing Engine 600 or 1600

Image g003170.gif

Inserting the Internal Compact Flash Disk

To insert the internal compact flash disk, follow this procedure (see Figure 3 or Figure 4):

  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. If the compact flash disk is in a PC Card adapter, slide it out of the adapter.
  3. Orient the compact flash disk with the Juniper Networks logo facing up. Slide the compact flash disk into the connector on the Routing Engine (see Figure 3 or Figure 4).

    Note: If there is no Juniper Networks logo on the compact flash disk, orient the compact flash disk so that the manufacturer product code sticker is facing down.

  4. Use needlenose pliers with grooved jaws to lower and secure the wire clasp.
  5. Install the Routing Engine as described in Installing the Routing Engine.

Figure 3: Inserting the Internal Compact Flash Disk into a Routing Engine 400, 850, S-1300, or S-2000

Image g003213.gif

Figure 4: Inserting the Internal Compact Flash Disk into a Routing Engine 600 or 1600

Image g003169.gif

Removing or Inserting the Compact Flash Disk Secured by a Screw

The internal compact flash disk is located in a slot on the Routing Engine board and is secured by a plastic nut and screw on the following Routing Engines (see Figure 5):

Figure 5: Routing Engine A-1000 and A-2000 Compact Flash Components

Image g003900.gif

For more information on how to remove or insert the compact flash disk for these Routing Engines, see the following procedures:

Removing the Internal Compact Flash Disk

To remove the internal compact flash disk, follow this procedure:

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. Remove the Routing Engine as described in Removing a Routing Engine.
  4. Use needlenose pliers with grooved jaws to hold the plastic nut in place.
  5. With your other hand, use a 3/16–in flat-blade screwdriver to remove the plastic screw (see Figure 6).

    Figure 6: Removing the Screw Securing the Internal Compact Flash on a Routing Engine A–1000 or A–2000

    Image g003901.gif

  6. Gently grasp the sides of the compact flash disk and slide it out of the connector (see Figure 7). Place the compact flash disk on the antistatic mat or in the electrostatic bag.

    Figure 7: Removing the Internal Compact Flash Disk from a Routing Engine A–1000 or A–2000

    Image g003902.gif

Inserting the Internal Compact Flash Disk

To insert the internal compact flash disk, follow this procedure:

  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. If the compact flash disk is in a PC Card adapter, slide it out of the adapter.
  3. Orient the compact flash disk with the Juniper Networks logo facing down. Slide the compact flash disk into the connector on the Routing Engine (see Figure 8).

    Note: If there is no Juniper Networks logo on the compact flash disk, orient the compact flash disk so that the manufacturer’s product code sticker is facing up.

    Figure 8: Inserting the Internal Compact Flash Disk into a Routing Engine A–1000 or A–2000

    Image g003903.gif

  4. Use needlenose pliers with grooved jaws to hold the plastic nut in place directly below the hole for the screw.
  5. With your other hand, use a 3/16–in flat-blade screwdriver to tighten the plastic screw (see Figure 9).

    Figure 9: Replacing the Screw to Secure the Internal Compact Flash on a Routing Engine A–1000 or A–2000

    Image g003904.gif

  6. Install the Routing Engine as described in Installing the Routing Engine.

Installing the Routing Engine

To install the Routing Engine, follow this procedure:

  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. If the Routing Engine has ejector handles, verify that the ejector handle at each end of the Routing Engine is flipped toward the outer edge of the unit. If necessary, use your thumbs to push and hold the red tab on each ejector handle toward the outer edge, then push the ends of the ejector handles outward.
  3. Place one hand under the Routing Engine to support it and grasp the handle on the faceplate with the other hand.
  4. Align the rear of the Routing Engine with the guide rails inside the chassis and slide it in completely.

    Caution: Be careful to align the Routing Engine correctly with the guide rails and push it in evenly. Damage can result if it gets lodged in the rails because of uneven movement.

  5. Secure the Routing Engine using one of the following methods:
  6. If there was a cover over the Routing Engine that you removed, reinstall the cover and tighten the screws to secure it to the chassis.
  7. You can verify correct Routing Engine functioning by issuing the show chassis routing-engine command.

Configuring the Internal Compact Flash Disk

After installing the internal compact flash disk for the first time, you must copy the software from the Routing Engine's hard disk to the internal compact flash disk.

Note: RE-A-1000 and RE-A-2000 require JUNOS Release 8.1R2 or later to function properly with the 1 GB compact flash disk. RE-S-1300 and RE-S-2000 require JUNOS Release 8.2 or later to function properly with the 1 GB compact flash disk.

Note: To configure the internal compact flash disk, you must be connected to the Routing Engine through the console or other management device.

To copy software to the compact flash disk:

  1. Install the internal compact flash disk as described in either Inserting the Internal Compact Flash Disk or Inserting the Internal Compact Flash Disk, and replace the Routing Engine as described in Installing the Routing Engine.
  2. On the console or other management device connected to the Routing Engine, boot from the hard drive.

    Note: If the compact flash disk has not yet been partitioned with JUNOS software, you may get an error message and prompted for a keystroke. If after pressing the keystroke, the Routing Engine does not immediately boot from the hard drive, it may take up to 10 minutes for the Watchdog timer to reset the Routing Engine and boot from the hard drive.

  3. Enter CLI operational mode, and issue the following command to copy the currently running and active file system partitions on the router to standby partitions on the internal compact flash disk.

    user@host> request system snapshot partition

    Wait until a message appears on the console confirming that the procedure is complete.

    For more information about the command, see the JUNOS System Basics and Services Command Reference.

  4. Issue the following command to reboot the router's software:

    user@host> request system reboot

    The internal compact flash disk will now be the primary boot device.

  5. You can verify correct boot order by issuing the show system boot-messages command. The output lists the devices mounted. The internal compact flash disk is located at ad0.

    For more information about the command, see the JUNOS System Basics and Services Command Reference.

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