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Home > Success Center > Network Performance Monitor (NPM) > Change the polling engine for multiple nodes

Change the polling engine for multiple nodes

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This article describes how to change the polling engine assignment for multiple nodes.


NPM 10.2 and later


If you do not want to change the polling methods used to poll the selected nodesonly select nodes of the same polling method type (SNMP, WMI, or ICMP), and then click Change Polling Engine to change the assigned polling engine for the selected nodes.

If you want to change the polling methods used to poll the selected nodes, use Node Management, as follows:

  1. Log in to the Orion Web Console as an administrator.
  2. Go to Settings > Manage Nodes.
  3. Select the node and then click Edit Properties.
  4. Select the appropriate Polling Method:
    • If you are only monitoring an object on the selected node and not the node itself, select No Status: External Node.
      Note: No data is collected for external nodes.
    • If you only want to use ICMP to monitor the selected node, select Status Only: ICMP.
      Note: Select this option for limited data collection for nodes that support neither WMI or SNMP. Only status, response time, and packet loss data are collected for ICMP only nodes.
    • If the selected node is a Windows Server, and you only want to use WMI and ICMP for monitoring it, select Windows Servers: WMI and ICMP, and then provide appropriate WMI credentials for the Windows Server you are adding.
      Note: Using WMI to monitor your added node may not provide as much data as you may be able to obtain using SNMP.
    • If you are adding a node for typical monitoring, select Most Devices: SNMP and ICMP, and then provide the SNMP Version and SNMP Port fields, as appropriate. 
      Note: If the SNMP port on the added node is not the Orion default of 161, provide the actual port number in the SNMP Port field.
  5. If you are using SNMP to poll the selected node and you want to provide additional community strings, provide them in the Community String field.
    • For most SNMPv2c devices, the community string public gives Orion NPM sufficient access. If you are providing multiple community strings, separate them with spaces, as shown in the following example: Cstring1 Cstring2 Cstring3
    • Orion uses SNMPv2c by default. If the device you are adding supports or requires the enhanced security features of SNMPv3, select SNMPv3. If SNMPv2c is enabled on a device you want NPM to monitor, by default, NPM will attempt to use SNMPv2c to poll for performance information. If you only want NPM to poll using SNMPv1, you must disable SNMPv2c on the device to be polled.
  6. If you have selected SNMPv3 as the SNMP version for the selected node and you want to provide additional read/write community strings, provide them in the Read/Write Community String field, as shown in the following example: RWCstring1 RWCstring2 RWCstring3


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