Simple Network Management Protocol (SNMP)

Reference Manual

Version 5.2.12

Table of Contents




Module Summary

Behaviour module for the SNMP agent notification filters.


This module defines the behaviour of the agent notification filters. A snmpa_notification_filter compliant module must export the following functions:

  • handle_notification/2

The semantics of them and their exact signatures are explained below.

The purpose of notification filters is to allow for modification and/or suppression of a notification.

A misbehaving filter will be removed.



Reply = send | {send, NewNotif} | dont_send
Notif = NewNotif = notification() | trap()
Data = term()

Handle a notification to be sent. The filter can either accept the notification as is, return send, modify the notification, return {send, NewNotif} or suppress the notification, return dont_send.

Data is supplied at filter registration time, see register_notification_filter.