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Gigabit Ethernet Switch User's Guide
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 POST (Power On Self-Test) is skipped.
♦ Authentication Failure
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 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.
♦ Link Change Event This trap is sent whenever the link of
a port changes from link up to link down or from link down
to link up.
MIBs
The information stored in the Switch is known as the Management
Information Base (MIB). The Switch uses the standard MIB-II
Management Information Base module. Consequently, MIB values
inside the Switch can be retrieved from any SNMP-based network
manager. In addition to the standard MIB-II, the Switch also
supports its own proprietary enterprise MIB as an extended
Management Information Base. These MIBs may also be retrieved
20
This trap signifies that an
Switch Management
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