HP V1910 Switch Series User Manual

214
Field Descri
p
tion
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 184 SNAP-encapsulated LLDPDU format
Table 89 Fields in a SNAP encapsulated LLDPDU
Field Descri
p
tion
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-encoded LLDP Ethernet 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.
LLDPDUs
LLDP uses LLDPDUs to exchange information. An LLDPDU comprises multiple TLV sequences. Each carries
a specific type of device information, as shown in Figure 185.
Figure 185 LLDPDU encapsulation format
An LLDPDU can carry up 28 types of TLVs. Mandatory TLVs include Chassis ID TLV, Port ID TLV, Time To
Live TLV, and End of LLDPDU TLV. Other TLVs are optional.
TLVs
TLVs are type, length, and value sequences that carry information elements. The type field identifies the
type of information, the length field indicates the length of the information field in octets, and the value
field contains the information itself.
LLDPDU TLVs fall into the following categories:

HP V1910 Switch Series Specifications

General

Product Series	V1910
VLAN Support	Yes
QoS	Yes
Ports	8, 24, or 48 10/100/1000 ports
MAC Address Table Size	8K entries
Power Supply	Internal power supply
Jumbo Frame Support	Yes
Operating Humidity	10% to 90% (non-condensing)