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configuring aggregated links.
An incompatibility exists when changing link speed from 10 Mbps Half Duplex to 100 Mbps half duplex. If
auto-negotiation on the Switch is disabled and the link speed on the Switch is changed from 10 Mbps half
duplex to 100 Mbps half duplex, there is a possibility that the link partner will not detect the change. The link
will have to be broken and reconnected before the link partner will detect the speed and change link speed
to 100 Mbps half duplex.
Although it is possible to set up a slip connection from a PC running Windows 2000 to the console port of
the switch using the "Communications Cable between 2 computers" modem type, the resulting setup only
works intermittently.
Software Upgrades
How do I upgrade the Software on my Switch?
To upgrade the software on the Switch do the following:
1. Locate the upgrade software for the Switch and run the (filename.exe) executable file.
2. If necessary, download the TFTP server applications into the management station.
3. Install the TFTP server (file name 3ts01_04.exe) on a Microsoft Windows 95, 98, NT or 2000 machine.
4.
Launch the TFTP server application.
5. Point the Upload/Download default directory on the TFTP server to the directory where the upgrade
file is located.
6. Make sure the Switch being upgraded has an IP address assigned to it.
7. Telnet to the Switch.
a. To Telnet to the Switch, click Start in Microsoft Windows 95, 98, NT or 2000 machine.
b.
Click Run.
c.
In the text area, type telnet IP address.
d.
Click OK.
8. Press Enter to receive a login prompt.
9. Log into the Switch management.
a.
The default user login is admin.
b.
There is no default password for admin (press Enter).
10. From the main menu, select System, then select Control.
11. Select SoftwareUpgrade.
12. Enter the IP address of the TFTP server connected to the Switch.
13. Enter the upgrade file name.
a.
This message will appear "Software upgrade in progress..."
b. The entire time the upgrade is in process, the Power/Self test LED will flash ON/OFF Green,
and a series of dots will indicate that the upgrade is progressing successfully
c.
When the software upgrade is complete, the Switch will reboot itself
3Com Network Supervisor
The CD-ROM contains 3Com Network Supervisor.
3Com Network Supervisor provides powerful yet easy-to-use network management. Focused on the needs
of small to medium enterprises, it enables you to manage your network more efficiently. For larger networks
(up to 2,500 nodes) and extra functionality you can purchase the 3Com Network Supervisor Advanced