To install or upgrade the internal compact flash disk in a Routing Engine, perform the procedures in the following sections:
To replace hardware components, you need the following tools and parts:
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:
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.
user@host> show chassis routing-engine
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.
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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. |
To remove a Routing Engine, follow this procedure:
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.
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Note: The CFEB might continue forwarding traffic for approximately 5 minutes after the request system halt command has been issued. |
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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. |
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Caution: Be careful to slide the Routing Engine straight out of the chassis. Damage can result if it gets lodged because of uneven movement. |
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:
To remove the internal compact flash disk, follow this procedure (see Figure 1 or Figure 2):
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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. |
Figure 1: Removing the Internal Compact Flash Disk from a Routing Engine 400, 850, S-1300, or S-2000
Figure 2: Removing the Internal Compact Flash Disk from a Routing Engine 600 or 1600
To insert the internal compact flash disk, follow this procedure (see Figure 3 or Figure 4):
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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. |
Figure 3: Inserting the Internal Compact Flash Disk into a Routing Engine 400, 850, S-1300, or S-2000
Figure 4: Inserting the Internal Compact Flash Disk into a Routing Engine 600 or 1600
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
For more information on how to remove or insert the compact flash disk for these Routing Engines, see the following procedures:
To remove the internal compact flash disk, follow this procedure:
Figure 6: Removing the Screw Securing the Internal Compact Flash on a Routing Engine A–1000 or A–2000
Figure 7: Removing the Internal Compact Flash Disk from a Routing Engine A–1000 or A–2000
To insert the internal compact flash disk, follow this procedure:
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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
Figure 9: Replacing the Screw to Secure the Internal Compact Flash on a Routing Engine A–1000 or A–2000
To install the Routing Engine, follow this procedure:
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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. |
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.
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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. |
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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:
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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. |
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.
user@host> request system reboot
The internal compact flash disk will now be the primary boot device.
For more information about the command, see the JUNOS System Basics and Services Command Reference.