Using SNMP

Working with SNMP Traps

 

 

 

 

Working with SNMP Traps

The SNMP agent in the switch has the ability to send traps to the management station. It is not required that the management station request them. Traps are messages alerting the SNMP manager to a condition on the network. A trap message is sent via a PDU issued from the switch’s network management agent. It is sent to alert the management station to some event or condition on the switch.

Traps can indicate improper user authentication, restarts, the loss of a connection, or other significant events. You can configure the switch so that traps are forwarded to or suppressed from transmission to the management station under different circumstances.

Trap Filtering

You can filter SNMP traps in at least two ways. You can filter traps by limiting user access to trap families or you can filter according to individual traps.

Filtering by Trap Families

Access to SNMP traps can be restricted by withholding access privileges for user accounts to certain command families or domains. (Designation of particular command families for user access is sometimes referred to as partition management.)

SNMP traps are divided into functional families as shown in the “SNMP Traps Table” on page 10-9. These families correspond to switch CLI command families. When read-only privileges for a user account are restricted for a command family, that user account is also restricted from reading traps associated with that family.

Procedures for filtering traps according to command families can be found in the Quick Steps for “Filter- ing by Trap Families” on page 10-4. For a list of trap names, command families, and their descriptions refer to the “SNMP Traps Table” on page 10-9.

Filtering By Individual Trap

You can configure the switch to filter out individual traps by using the snmp trap filter command. This command allows you to suppress specified traps from the management station. The following information is needed to suppress specific traps:

•The IP address of the SNMP management station that will receive the traps.

•The ID number of the individual traps to be suppressed.

Procedures for filtering individual traps can be found in the Quick Steps for “Filtering by Individual Traps” on page 10-5. For a list of trap names, ID numbers, and their descriptions refer to the table “SNMP Traps Table” on page 10-9.

OmniSwitch 6600 Family Switch Management Guide March 2005

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Alcatel Carrier Internetworking Solutions omniswitch Working with Snmp Traps, Trap Filtering, Filtering by Trap Families
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omniswitch specifications

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