Event collection for SNMP traps

Event Management can process SNMP traps as events. In this configuration, a MID Server acts as a collection endpoint for SNMP traps. Event Management can then periodically pull events from the MID Server.

Before you begin

Before starting this procedure, confirm with your ServiceNow representative that the server and software specifications for hosting the MID Server are met. Also confirm that the MID Server version matches the ServiceNow instance version. For example, navigate to MID Server, click a Name, and confirm that the Version is the same as the ServiceNow instance version.

Role required: evt_mgmt_operator

About this task

Use the Discovery Trap Collector Extension to process SNMP traps as events. In this configuration, a MID Server acts as a collection endpoint for SNMP traps.

Procedure

  1. Navigate to MID Server > Extensions > SNMP Trap Collectors.
  2. Click New.
  3. Complete the form:
    OptionDescription
    Name Unique name for the SNMP Trap Collector.
    Short description [Optional] Short description of the MID Server extension execution context.
    Extension The MID Server extension of this context.
    UDP Port UDP port for SNMP Trap Collector to receive SNMP Traps. The default value is 1,162. However, if the port is already in use, you can use port 162 instead.
    Status The current status of this extension execution context.
    Execute on Select either Specific MID Server or Specific MID Server Cluster.
    MID Server MID Server or MID Server Cluster to host the SNMP Trap Collector from the MID Server reference field.
  4. In the Related Links section, click Test.
  5. Click Submit.
  6. (Optional) If the MID Server fails to start, review the MID Server log errors.
  7. (Optional) For high availability, add a second MID Server and configure the trap sender so that both MID Servers receive the same SNMP traps. To prevent duplication, only the active MID Server actually processes SNMP traps.