Hitachi WL200 Series

Chapter 8 PROFINET Specification
25
8.4.6 LLDP8023MACPHY
This data is particular TLV to IEEE802.3 (Ethernet), and indicates the information about Ethernet.
OUI which is 0x00 0x12 0x0F indicates IEEE802.3.
Item
Length
Value
Type
7 bits
0x7F
Length
9 bits
9
Value
OUI
3 bytes
0x00 0x12 0x0F
subtype
1 byte
1
auto negotiation
1 byte
3
Bit 0 indicates that WJ-PN supports Auto
negotiation.
Bit 1 indicates that Auto negotiation is active.
transmission speed
2 bytes
0x0400
Bit 11 indicates that WJ-PN supports
100BASE-TX.
The other bits indicate that WJ-PN doesn’t
support the other transmission speed.
actually
transmission speed
2 bytes
0x0010
This indicates that the transmission speed is
100BASE-TX Full.
8.4.7 LLDPManagement
This data indicates the management information. OID (Object Identifier) is enterprise number of PI.
Item
Length
Value
Type
7 bits
8
Length
9 bits
20
Value
Management address
length
1 byte
5
Management address
subtype
1 byte
1
Management address
4 bytes
IP address
Interface numbering
subtype
1 byte
2
Interface number
4 bytes
1
OID length
1 byte
8
OID
8 bytes
0x2B 0x06 0x01 0x04 0x01 0x81 0xC0 0x6E
This indicates that OID is ‘1.3.6.1.4.1.24686’.
8.4.8 End
This data indicates the end of LLDP packet.
Item
Length
Value
Type
7 bits
0
Length
9 bits
0