DUA1860-0AAA01
SNMP Configuration 2-47
Traps
An SNMP agent can send messages, traps, when exceptional
events occur. Traps include the name of the community involved
in the event. They are sent to an IP address that you define for
each community during configuration of the agent.
The main advantage of traps is that you do not have to constantly
monitor the bridge because it alerts you when any exceptional
events occur.
The bridge's SNMP agent supports the following bridge traps:
■Authentication Failure
An SNMP client has tried to access the agent using a community
name the agent does not recognize, or requesting an action not
allowed for the community.
■Cold Start
The agent is initializing itself. The values of MIB variables may
change.
■Interface Up
A port, previously not operational, is now operational.
■Interface Down
A port, previously operational, is now not operational.
■New Root
The bridge on which the agent is running has become the new
root of the Spanning Tree.
■Topology Change
One of the configured bridge's configured ports has gone into or
out of the Forwarding state. This could be due to STAP or manual
configuration.