Error Reporting - Cisco Catalyst 4500 Series Software Configuration Manual
Cisco ios xe release 3.9.xe and cisco ios release 15.2(5)ex
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Also See for Catalyst 4500 Series:
- Administration manual (1814 pages) ,
- Configuration manual (1610 pages) ,
- Command reference manual (1230 pages)
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Chapter 84
ROM Monitor
If you are using a PC to download a Cisco IOS image over the router console port at 115,200 bps, ensure
Note
that the PC serial port is using a 16550 universal asynchronous transmitter/receiver (UART). If the PC
serial port is not using a 16550 UART, we recommend using a speed of 38,400 or less when downloading
a Cisco IOS image over the console port.
Error Reporting
Because the ROM monitor console download uses the console to perform the data transfer, error
messages are only displayed on the console when the data transfer is terminated.
If an error does occur during a data transfer, the transfer is terminated, and an error message is displayed.
If you have changed the baud rate from the default rate, the error message is followed by a message
telling you to restore the terminal to the baud rate specified in the configuration register.
With ROMMON version 15.1(1r)SG4 and 15.1(1r)SG5on Supervisor Engine 8-E, the follow error
message is displayed if the supervisor is idle for more than an hour. You can ignore this message; it does
not affect device performance.
Debug Commands
Most ROM monitor debugging commands are functional only when Cisco IOS software has crashed or
is halted.
The following are ROM monitor debugging commands:
•
•
rommon 0 >ICMP: Unsupported type/opcode! d00
ICMP: Unsupported type/opcode! d00
ICMP: Unsupported type/opcode! d00
ICMP: Unsupported type/opcode! d00
ICMP: Unsupported type/opcode! d00
ICMP: Unsupported type/opcode! d00
ICMP: Unsupported type/opcode! d00
Pinging 10.64.71.1
!!!!
10.64.71.1 is alive!
rommon 2 >version
frame—Displays an individual stack frame.
sysret—Displays return information from the last booted system image.
This information includes the reason for terminating the image, a stack dump of up to eight frames,
and, if an exception is involved, the address where the exception occurred.
For example:
rommon 8> sysret
System Return Info:
count: 19,
reason: user break
pc:0x801111b0,
error address: 0x801111b0
Stack Trace:
FP: 0x80005ea8, PC: 0x801111b0
FP: 0x80005eb4, PC: 0x80113694
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Debug Commands
84-5
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