Ethernet Switching Tables¶

The ethernet_switching collector ingests learned MACs from a switch's forwarding table.

NAPALM call¶

• driver.get_mac_address_table().

What it produces¶

For each MAC table entry:

{
  "mac": "aa:bb:cc:11:22:33",
  "interface": "ge-0/0/12",
  "vlan": 100
}

Action: confirmed if a MACAddress already exists, else new.

object_repr is MACAddress <mac> on <interface markdown link>.

Apply behavior¶

• Get-or-create the MACAddress (tagged auto-discovered if new).
• Add the local interface to MACAddress.interfaces.
• Set discovery_method = ethernet_switching and refresh last_seen.

Skip conditions¶

• MAC or interface name is empty.
• The interface name does not match valid_interfaces_re.
• The interface does not exist in NetBox (logged warning, skipped).
• Duplicate MACAddress rows exist for the address (logged warning, manual cleanup expected).