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