MediaGateway
User Manual
74
3.7.5
Difference between all RAW modes
Speed RAW is faster than RAW. Incoming Ethernet RAW frames are fixed to
EtherType: 0x1886
Extreme RAW is the fastest mode. It is only accepting RAW Frames with
EtherType 0x1887
3.7.6
Structure of a CAN
Ethernet packet
3.7.6.1
Structure of UDP-Packet
Ethernet Header
(14 Bytes)
IP Header (20 Bytes)
Destination IP Address
(4 Bytes)
UDP Header (8 Bytes)
UDP Destination Port
(2 Bytes)
Payload (CAN packet)
(17 Bytes)
Table 3-2: Structure of UDP packet
The
blue text modules
are configurable by the user on
CAN Function
Tab
3.7.6.2
Structure of RAW-Packet
Destination MAC
address
(6 Bytes)
Source MAC address
(6 Bytes)
EtherType
(2 Bytes)
Payload (CAN packet)
(17 Bytes)
Table 3-3: Structure of UDP packet
The
blue text modules
are configurable by the user on
CAN Function
Tab
3.7.6.3
Structure of Payload from the UDP or RAW ethernet frame
The CAN packet is the payload of the UDP frame or RAW ethernet frame. The following
tables show the structure of this payload:
8 Byte
1
2
3
4
5
6
7
8
Version
CAN
Channel
ID
ID type
Frame
type
DLC
D0
D1
D2
D3
D4
D5
D6
D7
Table 3-4: Payload of CAN/Ethernet Packet
