3Com SuperStack 3 4900 SX, Getting Started Manual

Page: 23 / 54

Managing the Switch 23
Table 9
Problems with hardware
*To Power Cycle the unit: Remove and reconnect the AC mains supply. If the unit has no AC
mains supply, remove and reconnect the DC RPS supply.
For Technical Support information, see Appendix D .
Managing the
Switch
Your Switch can operate in its default state. However, to make full use of
the features offered by the Switch, and to change and monitor the way it
works, you have to access the management software that resides on the
Switch. This is known as managing the Switch.
Managing the Switch can help you to improve the efficiency of the
Switch and therefore the overall performance of your network.
There are several different methods of accessing the management
software to manage a Switch. These methods are explained in
Chapter 3
Setting Up for Management .
Problem Suggested Solution
An expansion module
is installed and the
unit will not power up Ensure that the expansion module is fully seated in the
slot and the connectors are engaged so that the securing
screws can be tightened.
An SNMP fan fail trap
is received 1 Power off the unit.
2 Check that the air vents are not obstructed.
3 Power up the unit.
4 If a further fan fail trap is received, return the unit.
Unit fails, no SNMP fan
fail trap is received 1 Power cycle the unit.*
2 Check the command line interface to determine
whether a thermal shutdown has occurred.
3 If no, return the unit.
If yes, check that:
■
The air vents are not obstructed.
■
The ambient temperature and environmental
conditions meet those specified in
Appendix C .
4 Power cycle the unit. If a further thermal shutdown
occurs, and all environmental conditions are
satisfactory, return the unit.
17702ua.bk Page 23 Friday, April 6, 2001 3:31 PM