Enabling SNMP notifications
Enable an SNMP notification only if necessary. SNMP notifications are memory-intensive and might affect device performance.
To generate linkUp or linkDown notifications when the link state of an interface changes, you must perform the following tasks:
Enable linkUp or linkDown notification globally by using the snmp-agent trap enable standard [ linkdown | linkup ] * command.
Enable linkUp or linkDown notification on the interface by using the enable snmp trap updown command.
After you enable notifications for a module, whether the module generates notifications also depends on the configuration of the module. For more information, see the configuration guide for each module.
To enable SNMP notifications:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enable SNMP notifications. | snmp-agent trap enable [ configuration | protocol | standard [ authentication | coldstart | linkdown | linkup | warmstart ] * | system ] | By default, SNMP configuration notifications, standard notifications, and system notifications are enabled. Whether other SNMP notifications are enabled varies by modules. |
3. Enter interface view. | interface interface-type interface-number | N/A |
4. Enable link state notifications. | enable snmp trap updown | By default, link state notifications are enabled. |