User guide

168 DSView Installer/User Guide
Modifying DSR switch or CPS appliance SNMP settings
The SNMP appliance settings allow the DSView software to be configured to log enterprise
(SNMP) traps sent by DSR switches and CPS appliances.
An SNMP trap is a notification sent by a DSR switch or CPS appliance to a host system indicating
that an event has occurred in the DSR switch or CPS appliance that may require further attention.
SNMP is a protocol used to communicate management information between network management
applications and DSR switches and CPS appliances using TCP/IP and IPX protocols. Other
external SNMP managers (such as Tivoli
®
and HP OpenView) may communicate with your DSR
switches and CPS appliances by accessing MIB-II (Management Information Base) and the public
portion of the enterprise MIB. MIB-II is a standard MIB that many SNMP target devices support.
DSR switches and CPS appliances will send their traps directly to the external SNMP manager in
addition to sending it to the DSView Server.
When you access a DSR switch or CPS appliance for the first time, the DSView software will
retrieve the SNMP parameters from the DSR switch or CPS appliance.
DSR switches and CPS appliances are defined in the DSView software using the following settings,
which appear beneath SNMP in the side navigation bar:
• System - Allows SNMP to be enabled or disabled
• Managers - Specifies which stations may manage the DSR switch or CPS appliance
• Community - The communities to which the traps belong
• Destinations - The stations which may receive SNMP traps from the switch
• Traps - Lists all available traps and allows the traps to be enabled or disabled
If you select System beneath SNMP in the side navigation bar and then select Enabled from the
Enable SNMP drop-down menu in the Appliance SNMP System Settings window, the DSR switch
or CPS appliance will log SNMP received messages over UDP (User Datagram Protocol) port 162.
The traps must be configured on each DSR switch and CPS appliance using the Command Line
Interface (CLI). The address of the server running the DSView software must be configured as a
trap recipient, the proper community must be set, and each desired trap must be enabled.
All SNMP traps are logged in the audit log file. See Working with Audit Logs on page 401 for
more information.