Avaya M770 Manual De Usuario

Chapter 19

Upgrading Avaya M770 ATM Switch Software

244

Avaya M770 ATM Switch User’s Guide

Downgrading the Main Software Version via TFTP from the CLI 

When returning to a previous Main S/W version, it is recommended to use the 
configuration file that was created using the previous version.  If a snapshot was not 
taken with the previous version, a configuration file was automatically taken for 
you and stored in flash after downloading and rebooting the module with the latest 
Main S/W version.  This file is called "oldconfiguration.X.Y.Z where X.Y.Z is the 
Main Software version.  
To return to a previous version you need to perform the following:
1

Change the main image that will be run on the next reboot by using the 

flash 

default

 command:

2

Restore the appropriate configuration file (the one that was used with the 
version changed in step 1 above), by typing the following:

3

After changing the configuration file and main image on each of the modules in 
the M770 ATM switch, reboot the switch using the system reboot switch 
command to run the previous version.

It is recommended that all modules in the M770 ATM switch use the same 

software version.  To check which software is currently running on the ATM 
module, use the command version.

If a new configurarion file and S/W Main Image is changed at the same time, 

a file called oldconfiguration.unknown will be saved in Flash memory on reboot of 
this module. 

Command:

M15-155s8:/>flash default <filename>

Example

M15-155s8:/>flash default m770ATM.2.0.16

Parameter: 

<filename>

The name of the image that the M770 ATM Switch will 
next run.

Command:

M15-155s8:/>/>flash config <filename>

Example

M15-155s8:/>flash config oldconfiguration.1.2.14

Parameters: 

<filename>

The name of the configuration file that you wish to 
activate