Hitachi WJ200 Series Quick Reference Manual page 31

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