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Signamax Managed Hardened PoE Industrial DIN-rail Mount Switch User Manual

Page 49

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9 LLDP

44

Field

Description

Destination MAC
address

The MAC address to which the LLDPDU is advertised. It is
fixed to 0x0180-C200-000E, a multicast MAC address.

Source MAC address

The MAC address of the sending port. If the port does not
have a MAC address, the MAC address of the sending
bridge is used.

Type

The Ethernet type for the upper layer protocol. It is
0x88CC for LLDP.

Data

LLDP data unit (LLDPDU)

FCS

Frame check sequence, a 32-bit CRC value used to
determine the validity of the received Ethernet frame

(2) SNAP-encapsulated LLDPDU format

Field

Description

Destination MAC
address

The MAC address to which the LLDPDU is advertised. It is
fixed to 0x0180-C200-000E, a multicast MAC address.

Source MAC address

The MAC address of the sending port. If the port does not
have a MAC address, the MAC address of the sending
bridge is used.

Type

The SNAP type for the upper layer protocol. It is
0xAAAA-0300-0000-88CC for LLDP.

Data

LLDPDU

FCS

Frame check sequence, a 32-bit CRC value used to
determine the validity of the received Ethernet frame

When Ethernet II encapsulation format is adopted, LLDPDUs sent from the port with LLDP
enabled will be encapsulated with Ethernet II format, and the device will only deal with the