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Link Layer Discovery Protocol (LLDP)
Link Layer Discovery Protocol (LLDP)

How to identify which switch port a sensor is connected to.

Updated over a week ago

Your HPE Aruba Networking User Experience Insight (UXI) sensor is now capable of transmitting LLDP information. This feature helps you identify the exact switch port a sensor is connected to. No action is required to enable LLDP on the sensor.

For HPE Aruba Networking switches running ArubaOS-Switch, the command to view LLDP information is:

cssCopy codeshow lldp info remote-device [port-number]

The UXI sensor will not respond to LLDP until it is connected to the UXI dashboard.

Note: Performing "Device Profiling" on CX creates a catch-22 situation. Without LLDP, the sensor cannot be profiled, which means the correct VLAN cannot be applied to the port, preventing the sensor from accessing the UXI dashboard.

To resolve this:

  • Use ClearPass to profile the sensor and apply the correct VLAN to the switch port.

  • Once the sensor is connected to the dashboard (enabling LLDP), the switch can then perform "Device Profiling" to apply the required CX port settings.

Example "Device Profile" config is as follows:

port-access lldp-group HTEC-UXI-Group
seq 10 match vendor-oui 00120F type 1
seq 20 match vendor-oui 00120F type 3

port-access role HTEC-UXI-Role
description Aruba UXI Sensor
poe-priority high
vlan access 51

port-access device-profile Aruba-UXI
enable
associate role HTEC-UXI-Role
associate lldp-group HTEC-UXI-Group

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