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Whether to send MAC/PHY Configuration/Status TLV in LLDP, which indicates the interface capabilities, current setting of the duplex status, bit rate, and auto-negotiation. Only applies to the Ethernet interfaces. While TLV is optional in LLDP, it is mandatory when sending LLDP-MED, meaning this TLV will be included when necessary even though the property is configured as disabled.

Whether to send Maximum Frame Size TLV in LLDP, which indicates the maximum frame size capability of the interface in bytes (l2mtu + 18). Only applies to the Ethernet interfaces.

Two specific TLVs facilitate Power over Ethernet (PoE) management between Power Sourcing Equipment (PSE) and Powered Devices (PD):

• IEEE 802.3 Organizationally Specific Power Via MDI TLV
• TIA-1057 (LLDP-MED) Organizationally Specific Extended Power via MDI TLV

The lldp-poe-power attribute determines whether to transmit the Whether to send IEEE 802.3 Organizationally Specific Power Via MDI TLV in LLDP , which allows an exchange of information between a PSE and a PD. Only applies to the Ethernet interfaces that support PoE-Out.messages.

The transmission The sending of LLDP-MED Organizationally Specific Extended Power via MDI TLV is not configurable, and it . It is automatically included in outgoing LLDP-MED packets when other end the remote device has sent MED-Power.transmitted LLDP-MED capability of receiving power.

These TLVs are relevant only for Ethernet interfaces that support PoE-Out. The setting is available since RouterOS version 7.15, and it replaces PoE-out port port poe-lldp-enabled setting.

Advertised VLAN ID for LLDP-MED Network Policy TLV. This allows assigning a VLAN ID for LLDP-MED capable devices, such as VoIP phones. The TLV will only be added to interfaces where LLDP-MED capable devices are discovered. Other TLV values are predefined and cannot be changed:

• Application Type - Voice
• VLAN Type - Tagged
• L2 Priority - 0
• DSCP Priority - 0

When used together with the bridge interface, the (R/M)STP protocol should be enabled with protocol-mode setting. 

Additionally, other neighbor discovery protocols (e.g. CDP) should be excluded using protocol setting to avoid LLDP-MED misconfiguration.

Selects the neighbor discovery packet sending and receiving mode. The setting is available since RouterOS version 7.7.