Snmp - D-Link DES-3326SR User Manual

DES-3326SR Layer 3 Fast Ethernet Switch User's Guide
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Authentication Failure This trap signifies that someone
has tried to logon to the switch using an invalid SNMP
community string. 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 the
switch 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 election
as the new root.
•
Topology Change (STP) 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 Up This trap is sent whenever the link of a port
changes from link down to link up.
•
Link Down This trap is sent whenever the link of a port
changes from link up to link down.

SNMP

The Simple Network Management Protocol (SNMP) is an OSI
layer 7 (the application layer) protocol for remotely monitoring
and configuring network devices.
management stations to read and modify the settings of
gateways, routers, switches, and other network devices. SNMP
can be used to perform many of the same functions as a
directly connected console, or can be used within an integrated
network management software package such as DView.
SNMP enables network
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