2 – SNMP Overview
A
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.
Workstation with SNMP Manager
Ethernet Connection
SANbox2 Switch with Agent and
Common User Interface API
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
