Console Download; Command Description - Cisco 2431 - IAD Router Software Configuration Manual

Appendix C Using the ROM Monitor
enabled are:
diagnostic mode
console baud: 9600
boot: the ROM Monitor
do you wish to change the configuration? y/n
You must reset or power cycle for new config to take effect

Console Download

You can use console download, which is a ROM monitor function, to download either a software image
or a configuration file over the router console port. After download, the file is either saved to the
mini-flash memory module or to main memory for execution (image files only).
Use console download when you do not have access to a TFTP server.
If you want to download a software image or a configuration file to the router over the console port, you
Note
must use the ROM monitor dnld command.
Note If you are using a PC to download a Cisco IOS image over the router console port at 115,200 bps, ensure
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 bps or less when
downloading a Cisco IOS image over the console port.

Command Description

The following are the syntax and descriptions for the xmodem console download command:
xmodem [-cyrx] destination_file_name
c
y
r
OL-4306-03
Optional. Performs the download using 16-bit cyclic redundancy check (CRC-16) error
checking to validate packets. Default is 8-bit CRC.
The IAD2435 IAD only supports c and y.
Note
Optional. Sets the router to perform the download using Ymodem protocol. The default
is Xmodem protocol. The protocols differ as follows:
Xmodem supports a 128-block transfer size. Ymodem supports a 1024-block
•
transfer size.
Ymodem uses CRC-16 error checking to validate each packet. Depending on the
•
device that the software is being downloaded from, this function might not be
supported by Xmodem.
Note The IAD2435 IAD only supports c and y.
Optional. Image is loaded into DRAM for execution. The default is to load the image
into flash memory.
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
[n]:
Console Download
C-7