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10/100 Fast Ethernet Switch User’s Guide
22
Switch Management
Traps
Trap managers are special users of the network who are given certain rights
and access in overseeing the maintenance of the network. Trap managers can
receive traps sent from the Switch; they must immediately take certain
actions to avoid future failure or breakdown of the network.
Traps are messages that alert you of events that occur on the Switch. The
events can be as serious as a reboot (someone accidentally turned OFF the
Switch), or less serious like a port status change. The Switch generates traps
and sends them to the network manager (trap managers). The following lists
the types of events that can take place on the Switch.
◊
System resets
◊
Errors
◊
Status changes
◊
Topology changes
◊
Operation
You can also specify which network managers may receive traps from the
Switch by setting a list of IP Addresses of the authorized network managers.
The following are trap types a trap manager will receive:
♦
Cold Start
: This trap signifies that the Switch has been powered up
and initialized such that software settings are reconfigured and
hardware systems are rebooted. A cold start is different from a
factory reset.
♦
Authentication Failure
: This trap signifies that an addressee (or
manager/ user) on the Switch is not a valid user of the Switch and may
have entered an incorrect community name.
♦
New Root
: This trap indicates that the Switch has become the new
root of the Spanning Tree, the trap is sent by a bridge soon after its