Configure SNMP Trap
Trap is the information that SNMP agents actively send to network workstations to report specific events. Trap packets can be divided into general Trap and custom Trap. General Trap includes Authentication, Linkdown, Linkup, Coldstart, Warmstart, crc-error, out- packet-error, out-usage-rate, in-packet-error, and in-usage-rate. Custom Trap is output according to the requirements of each module.
Table 8–12 Configure Trap
|
Step
|
Command
|
Description
|
|
Enter the global configuration mode
|
configure terminal
|
-
|
|
Enable the trap of the link interface down or up
|
snmp-server enable traps snmp [ linkup | linkdown ]
|
Mandatory
By default, SNMP Trap is disabled.
|
|
Enter the interface configuration mode
|
interface interface-type interface-num
|
Optional
|
|
Configure the trap of the interface status change
|
snmp trap link-status
|
Optional
|
|
Configure Trap target host
|
snmp-server host { ip-address | host-name } traps { community community-name version { 1 | 2 } | user username authnopriv | authpriv | noauth version 3 }[ port port-num | vrf vrf-name ]
|
Mandatory
It is necessary to specify ip-address as the IP address of the network work station.
|
|
Configure the source address of the Trap packet
|
snmp-server trap-source ip-address
|
Optional
|
-
Usually, there is much Trap information, so it will occupy equipment resources and affect equipment performance. Therefore, it is recommended that the Trap function of specified modules be enabled as needed, not all modules are enabled.
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