Instruction manual

Upgrading to Release 4.1 from Prior Releases
1-10 296-1011-220 Rel. 4.1, Doc. Rev. 07.02
CVX Multi-Service Access Switch 4.1 Release Notes
Upgrading to Release 4.1 from Prior Releases
The following procedures describe how to install CVX Release 4.1 from a
previous release or maintenance release. Use these procedures if you are
performing either a local upgrade or a remote upgrade using FTP and Telnet.
This section contains the following procedures:
• Checking Your Flash Memory Card (page 1-10)
• Backing Up the Current Release (page 1-12)
• Performing a Local Upgrade (page 1-13)
• Performing a Remote Upgrade Using FTP and Telnet (page 1-19)
• Restoring the CVX Access Switch to the Backup Software Release (page
1-22)
Checking Your Flash Memory Card
Before you perform an upgrade, you must check your flash memory card to
ensure that you have sufficient memory space to perform an upgrade. The
minimum requirement for an upgrade is 45 Mb of available memory.
To check the amount of available flash memory, at the CVX> prompt, enter dir.
CVX> dir
Directory of: c:\
.
.
(list of directories and files)
.
24 file(s) 18573814 bytes
29739836 bytes free
CVX>
Note: Before upgrading the CVX switch to Release 4.1, be sure to save a
copy of all the contents of your Release 2.0, 3.0, 3.1, 3.6, or 4.0
Nortel-supplied flash card. This step will allow you to restore your
previous configuration should you experience problems with the upgrade.