4SOFTWARE INSTALLATION
This chapter contains the following topics:
How to Obtain Software Image Files
Installation and Upgrade Prerequisites
Downloading Software
Downgrading Switching Modules to Software Release 2.1.0

How to Obtain

Software Image

Files

To obtain image files for software Release 3.0, contact your network
supplier or 3Com representative, or visit the 3Com Web site at:
http://support.3com.com/infodeli/swlib/index.htm
CAUTION: Before you upgrade software on CoreBuilder 9000 switch
fabric modules and interface modules to Release 3.0, you must upgrade
management software on the EME module to Release 3.0. You must also
upgrade the EMC operational file to Release 3.0 and the EMC boot file to
software Release 2.1.0. See the CoreBuilder 9000 Release Notes for
Management Modules for instructions.

Installation and

Upgrade

Prerequisites

Before you upgrade the Fast Ethernet and Gigabit Ethernet Layer 2
switching modules to Release 3.0, read this section for important
procedures that pertain to other modules in a n existing chassis or to other
modules in a new chassis.
CAUTION: All modules in a CoreBuilder 9000 chassis must operate at
compatible software levels. You must verify the software release on all
new and existing modules in your chassis and upgrade as necessary. See
Table1 in Chapter 1 for module software compatibility requirements. See
“Verifying and Updating Modules for an Existing Ch assis” and “Verifying
and Updating Modules for a NewChassis” next for procedures and
important information.