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H3C Technologies H3C WX3000E Series Wireless Switches User Manual

Page 140

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131

Figure 40 Ethernet II-encapsulated LLDPDU format

The fields in the Ethernet II-encapsulated LLDPDU are described in

Table 20

.

Table 20 Fields in an Ethernet II-encapsulated LLDPDU

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 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

Figure 41 SNAP-encapsulated LLDPDU format

The fields in the SNAP-encapsulated LLDPDU are described in

Table 21

.

Table 21 Fields in a SNAP-encapsulated LLDPDU

Field Description

Destination MAC address

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

Data = LLDPU

(1500 bytes)

0

Destination MAC address

Source MAC address

Type

15

31

FCS