TRENDnet TEG-S224 Series, User Manual, Page: 45 / 206

Stackable NWay Ethernet Switch User’s Guide
Switch Management Concepts 31
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.
Trap managers are special users of the network who are given
certain rights and access in overseeing the maintenance of the
network. Trap managers will receive traps sent from the Switch;
they must immediately take certain actions to avoid future failure or
breakdown of the network.
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.
? ?
Warm Start This trap signifies that the Switch has been
rebooted, however the Power-On Self-Test (POST) is skipped.
? ?
Authentication Failure
This trap signifies that someone
has tried to logon to the switch using an invalid SNMP
community name. The switch automatically stores the source
IP address of the unauthorized user.
? ? 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 election as the new root. This implies that upon
expiration of the Topology Change Timer the new root trap is
sent out immediately after the Switch’s selection as a new root.
? ?
Topology Change A Topology Change trap is sent by the
Switch when any of its configured ports transitions from the
Learning state to the Forwarding state, or from the
Forwarding state to the Blocking state. The trap is not sent if
a new root trap is sent for the same transition.