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Depending on RouterOS configuration, different type-length-value (TLV) can be sent in the LLDP message, this includes:
- Chassis subtype ID (MAC address)
- Port subtype ID (interface name)
- Time To Live
- System name Name (system identity)
- System description Description (platform - MikroTik, software version - RouterOS version, hardware name - RouterBoard name)
- Management address Address (all IP addresses configured on the port)
- System capabilities Capabilities (enabled system capabilities, e.g. bridge or router)
- Port Description (combined interface name like "bridge/ether1" if the sending interface is part of bridge or bond, or interface name same as Port ID)
- IEEE 802.3 MAC/PHY Configuration/Status
- IEEE 802.3 Power Via MDI
- IEEE 802.3 Maximum Frame Size
- LLDP-MED Media Capabilities (list of MED capabilities)
- LLDP-MED Network Policy (assigned VLAN ID for voice traffic)
- LLDP-MED Extended Power via MDI
- Port Extension (Port Extender and Controller Bridge advertisement)
- End of LLDPDU
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