Adding a network device

To configure a new network device, select Add Device under Configuration > Network Devices, and then do the following:

  1. In the Name section of the Add Network Device page, enter a unique, case-sensitive name to identify the device and the IP address that it uses for SNMP queries.

  2. (Optional) To add the device to an existing network device group, select the group name from the dropdown menu.

  3. In the Access section of the page, select the SNMP version to use for communication with the device, and then enter the read-only community string. The community string is required for SNMP v1 and v2c.


When a network device is assigned to a device group, the group’s SNMP version and community string settings will override its individual device settings.

3a. If SNMPv3 is selected as the communication method, then the following settings will also need to be configured:

  • User Name - Used to authenticate an SNMPv3 session with the device.

  • Security Level - Enables or disables hashing and/or encryption.

  • Hash Type - Hash function that is used by the device (SHA1 or MD5, only available for AuthNoPriv and AuthPriv security levels).

  • Authentication Passphrase - Passphrase that is used with the selected hash type.

  • Encryption Type - Encryption type that is used by the device (AES128 or DES, only available with AuthPriv security level).

  • Privacy Passphrase - Passphrase that is used with the selected encryption type.

  1. Select Poll as Endpoint to allow Plixer Endpoint Analytics to treat the device as an endpoint rather than a network device. If the device does not support MAC notification traps (i.e. not a Cisco or Enterasys device or has MAC notification traps disabled), then select Does not support MAC notification traps.

  2. (Optional) In the RADIUS section of the page, select Enable RADIUS to allow the system to process RADIUS accounting data from the device, and then enter the Shared Secret set on the device.

  3. (Optional) In Trunk Ports, select Edit All to manually designate ports as trunk ports. This process is used when the system is unable to automatically identify trunk ports using CDP or by inspecting the SAT of the device. Port numbers can be entered as individual comma-separated numbers or port ranges (e.g., “1-5”).


Designating a port as a trunk does not disable endpoint discovery on that port, but it instructs the UI not to display the MAC addresses learned on that port when viewing endpoints by network device port.

  1. (Optional) In Ignored Trunk Ports, click Edit All to add known trunk ports to be treated as regular switch ports so that the UI displays the MAC addresses learned on those ports.

  2. Click Save to save the configuration and establish SNMP communication with the network device.