LLDP Neighbor Information

Below is documented how a driver should set this information, and where it shows.

This typically is loaded when the driver’s get_my_client_data() function is called. I.e. This is when the user click the ‘Read Arp/LLDP’ button.

The NeighborDevice() class is used to store LLDP information. See the definition in openl2m/switches/connect/classes.py

Neighbor information is stored for each Interface(), in the interface.lldp* dictionary, with key “” as string.

I.e. the interface.eth dictionary contains the ethernet address heard on a particular interface.

Storing Neighbor Objects

There are a number of functions to help with storing NeighborDevice objects:

connector.add_neighbor_object(if_name, neighbor)

This can be used to add a newly created NeighborDevice() object to an interface name.

interface.add_neighbor(neighbor)

Same as above, but can be used if you already have the Interface() object.

Where It Shows

This shows under the ‘Arp/LLDP’ tab, and is rendered in the file templates/_tab_if_arp_lldp.html

See the code segment similar to this, inside the ‘for each interface’ loop:

# around line 29:
{% for key,iface in connection.interfaces.items %}

    # around line 97:
    {% if connection.neighbor_count > 0%}
        <td>{# lldp neigbors #}
            {% for lldp_index,neighbor in iface.lldp.items %}
            <div>{{ neighbor|get_lldp_info }}
            </div>
            {% endfor %}
        </td>