4
S
OFTWARE
I
NSTALLATION
How to Obtain Software Image Files 41
Installation and Upgrade Prerequisites 41
Verifying and Updating Modules for an Existing Chassis 42
Verifying and Updating Modules for a New Chassis 43
Downloading Software 44
Downloading Release 3.0 Software 44
Update Emergency Download Parameters 46
Downgrading Switching Modules to Software Release 2.1.0 48
5
R
EFERENCE
Identifying Modules in the Switch 49
Applicable Documents 51
MIB Files 51
3Com Enterprise MIBs 52
Entering Commands 53
Understanding Autonegotiation 53
Year 2000 Compliance 54
6
T
ECHNICAL
S
UPPORT
Online Technical Services 55
World Wide Web Site 55
3Com Knowledgebase Web Services 55
3Com FTP Site 56
3Com Bulletin Board Service 56
Access by Analog Modem 56
Access by Digital Modem 57
3Com Facts Automated Fax Service 57
Support from Your Network Supplier 57
Support from 3Com 57
Returning Products for Repair 59