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If you need to access the TFTP server to obtain the full image or the saved configuration files, enter the
Step 11
configuration dialog and provide the information necessary to access the TFTP server.
Installing a Redundant PRE2
Repeat
Step 1
Step 2
From the console ROMMON prompt, set the configuration to boot the full image and reload.
Troubleshooting
The PRE2 goes through a specific LED sequence at startup.
1.
2.
3.
4.
If this sequence does not occur, the STATUS LED is off, or the FAIL LED is yellow, check the following:
1.
2.
3.
Table 1
Table 1
LEDs/Switch
ACTIVITY
Green/Off
OL-24535-01
If you booted the full image, restore the startup configuration and running configuration
information, and set the boot variable for the new image. The upgrade is now complete.
If you booted from the helper image, download the full image, restore the startup and running
configuration information, set the boot variable to the new image, and reload the router. The
upgrade is now complete.
Step 1
through
Step 8
for slot B.
The FAIL LED briefly comes on and then goes off, and the STATUS LED starts flashing and
progress messages appear on the PRE2 display.
IOS RUN appears after a successful bootup.
The STATUS LED on the PRE2 turns green.
The redundant PRE2 boot sequence is similar, except that the STATUS LED remains off and the
final message is IOS STBY, indicating that the PRE2 is in standby state.
Are the LEDs on other modules on? If not, check for a problem in the power subsystem.
If other module's LEDs are on, remove the PRE2 from the slot, check for bent or broken pins on the
connectors, and reinsert it. Ensure that there is solid contact with the backplane and that the PRE2
is securely locked in place.
Verify the status of the PRE2 module's internal Ethernet interface (ethernet0/0/0). If this internal
interface is down, it could indicate that the PRE2 is not fully seated in the slot or that a hardware
failure has occurred. Do not confuse the PRE2 internal Ethernet interface (ethernet 0/0/0) with the
module's external Fast Ethernet interface (fastethernet 0/0/0), which is used for network
management and remote access.
provides LED status details for PRE2.
LED and Switch Description
Description
Packets are being transmitted and received
No packet activity
Cisco Performance Routing Engine (ESR-PRE2) Upgrade Installation
Troubleshooting
5
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