Using zmodem, Using zmodem with the load command, Using zmodem -4 – Alcatel Carrier Internetworking Solutions Omni Switch/Router User Manual

Page 160: Using zmodem with the load command -4

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Using ZMODEM

Page 5-4

Using ZMODEM

Normally you use

FTP

to transfer files to and from the switch. It is faster than using the serial

port. A

ZMODEM

transfer can take several minutes. There are generally two situations which

would require you to use the serial port to load software:

• You do not have access to an

FTP

client or server program. If the switch is up and

running, you can use the File commands to load software.

• You have deleted the image software files in the switch. If you are in this situation, the

only way to load software is using

ZMODEM

with the boot line prompt.

To use

ZMODEM

, you must have a terminal emulator that supports the

ZMODEM

protocol.

There are many packages on the market and they operate differently; therefore instructions
on how to use them are beyond the scope of this document. Consult the user manual which
came with your terminal emulation software.

Before doing a serial port transfer, you should set the baud rate to the highest possible
(however, it is not recommended that you run it at 38.4 Kbps). Running at

19200

is twice as

fast as

9600

. To set the baud rate, use the

ser

command. For more information on the

ser

command, see Chapter 6, “Configuring Management Processor Modules.”

Note

If a file you are transferring already exists in the
switch’s flash memory, you must remove the file before
transferring the new file via

ZMODEM

.

Using ZMODEM with the load Command

If your switch is up and running, log on to the switch. Type

ls

to list the files in flash

memory. If the file you are going to transfer exists, you must delete it first with the

rm

command.

From the File menu, type

?

to list the file commands. The command you use to start the

ZMODEM

process is

load

. The

load

command does not support speeds greater than 19,200

bauds.

/File % load

The Console (DCE) port is currently running at 19200 baud
Type ‘y’ to start ZMODEM download, ‘q’ to quit (y) : y

Upload directory: /flash
ZMODEM ready to receive file, please start upload (or send 5 CTRL-X’s to abort).

**B0100000023be50

Activate the

ZMODEM

transfer according to the instructions that came with your terminal

emulation software. When the transfer is completed use

ls

again to list the file or files you

have loaded.

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