3com S7906E Istruzione Sull'Installazione

 

1-2 

Figure 1-1 Ethernet II-encapsulated LLDP frame format 

 

 

 

The fields in the frame are described in 

:  

Table 1-1 Description of the fields in an Ethernet II-encapsulated LLDP frame 

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 LLDP frame format 

Figure 1-2 SNAP-encapsulated LLDP frame format 

 

 

 

The fields in the frame are described in 

:  

Table 1-2 Description of the fields in a SNAP-encapsulated LLDP frame 

Destination MAC address 

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