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Viewing Link-Layer Discovery Protocol Neighbors

The LLDP Neighbors page (Device Viewer > Device/Network Explorer > LLDP Neighbors) supports all devices running the LLDP protocol. The table lists all remote devices that are LLDP neighbors of the current device, listed against all local interfaces that report LLDP neighbors, and provides collected information regarding those devices from LLDP, including their identity, capabilities, and their own respective neighbors.

This menu item will not appear in the Device Viewer for devices that do not support the LLDP protocol.

You can also select additional columns of information for detected LLDP neighbors, including the following:

  • VRF: The network view belonging to the local interface that is connected to the discovered neighbor. This membership relation is inherited from the 'Network View' assignment of the local VRF in charge of this interface traffic.

  • Network View: The network view belonging to the local interface.

  • Neighbor Network View: The network view to which the neighboring interface belongs, if applicable.

  • Neighbor Version: Shows the complete IOS software version.

  • Neighbor ifindex: A standards-defined value for SNMP used as a unique identifying number associated with physical and logical interfaces, in this case for the LLDP protocol.

  • Neighbor MAC: Shows the physical-layer MAC address of each LLDP-reporting neighboring interface.