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2 – SNMP Overview
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When an SNMP request arrives at the agent, the agent will compose a message
and pass it on to Switch Management to process the message and provide a
response to the agent. The agent then provides a response to the originator of the
SNMP request. The SNMP agent does not have direct access to the internal
database of the switch.
Figure 2-1. SNMP Interface Architecture
2.3
Traps
Traps are notification messages sent from the switch to a registered manager
when a change of state occurs within the switch. A change of state can be an
alarm condition or simply a configuration change.
The Fibre Alliance MIB defines a trap table configurable through SNMP. A trap
table may have up to 5 entries, and can be configured using the SNMP Manager
or SANsurfer Switch Manager graphical user interface. The same trap table
information is available to both SNMP Manager and SANsurfer Switch Manager.
A trap event is reported when the incoming error has a severity level less than or
equal to the configured severity level. The trap event types and trap severity levels
are listed in Table 2-1. Refer to Table 5-1 for information on specific traps.
Workstation with SNMP Manager
SANbox2 Switch with Agent and
Common User Interface API
Ethernet Connection