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device)
• GetResponse: The reply of the Management Agent on a GetRequest, GetNextRequest, SetRequest or
the management station.
Figure 4.1.: Case-diagram of all SNMPv1 Supported Commands
4.1.2.
Trap
A trap is sent from the switch to the SNMP manager to indicate that an event has been
detected by the switch. The switch detects the following events:
Trap
Description
coldStart
Sent after each cold start
linkDown
Sent when a connection is inactive
linkUp
Sent when a connection is activated
enterpriseSpecific
Sending in a freely configurable event
Table 4.1.: Traps
The cold start trap is always sent to the management station when the switch is started (must be defined
in the Yacoub MIB). Whenever an Ethernet cable is plugged or unplugged on a port, a linkUp/linkDown-
trap is sent to the management station. This trap message has the appropriate port number in the data
field.
