user manual

4–Diagnostics/Troubleshooting
Recovering a Switch Using Maintenance Mode
59229-05 A 4-15
Recovering a Switch Using Maintenance Mode
A switch can become inoperable or unmanageable for the following reasons:
 Firmware becomes corrupt
 IP address is lost
 Switch configuration becomes corrupt
 Forgotten password
In these specific cases, you can recover the switch by placing the primary CPU
blade in maintenance mode. Maintenance mode temporarily returns the switch IP
address to 10.0.0.1 and provides opportunities to perform the following tasks:
 Exiting the Maintenance Menu
 Unpacking a Firmware Image File
 Resetting the Network Configuration.
 Resetting User Accounts
 Copying Log Files
 Removing the Switch Configuration
 Remaking the File System\
 Resetting a Blade
To recover a switch, do the following:
1. Place the switch in maintenance mode. Refer to “Placing the Switch in
Maintenance Mode” on page 1-11 for detailed instructions.
2. Allow one minute for the switch to complete its tests. When the switch is in
maintenance mode, the Heartbeat LED will illuminate continuously.
3. Establish a Telnet session with the switch using the maintenance mode IP
address 10.0.0.1.
4. Enter the maintenance mode account name and password (prom, prom),
and press the Enter key.
Sanbox login: prom
Password:xxxx
Trying 10.0.0.1...
Connected to 10.0.0.1.