Instruction manual

12
10 GB Communication
Version
1.0
3
& Control Card Instruction Manual
4.2.3 DDToIPv3 Protocol
Digital Data Transmission over IP Version 3 (DDToIPv3) is a flexible
device management protocol originally developed for the Gigabit Ethernet
Controller II. board. The instructions can be encapsulated in UDP/IP packets
as shown in Figure 3 or in HTTP POST messages.
Figure 3. DDToIPv3 Protocol
The DDToIP instruction chain (contained by the UDP payload or the
HTTP POST body) must start with “DDToIP” characters (44-44-54-6F-49-50
hexadecimal). It is followed by a 15-character user-defined string (User
Text). User can use this field to place his company name into the packet. V
(version number) must be 0x03.
The DDToIP packet can contain one or more instructions. The
instructions are performed sequentially.