13
Operations Guide
931080C
CyberData Corporation
2 POE Clock Messages
2.1 UDP Messages Definition
For UDP broadcast commands that are directed to a specific POE Clock, commands are qualified by
matching MacAddr and SerialNum values in the command with internal storage programmed at
manufacture.
2.1.1 Discover
Discover UDP Broadcast is a request from a Host to CDNetDevices, one of which is POE Clock, to
make them known to the Host. CyberData POE Clock receives a UDP broadcast Discover Request
on port 10004 then broadcasts a UDP Discover Response to the port from which the request was
received.
Table 2-1. Discover
From >
To
Content
Comment
Host >
Device
<XML>\n
<PacketType>Request</PacketType>\n
<VendorName>CyberData</VendorName>\n
<ProductName>CDNetDevice</ProductName>\n
</XML>\n
Discover
Request
Device >
Host
<XML>\n
<PacketType>Response</PacketType>\n
<VendorName>CyberData</VendorName>\n
<ProductName>CDNetDevice</ProductName>\n
<ProductType>CDPOEClock</ProductType>\n
<MacAddr>00:50:C2:02:0F:0D</MacAddr>\n
<SerialNum>313000001</SerialNum>\n
<DevName>CDPOEClock0001</DevName>\n
<IPAddr>192.168.6.23</IPAddr>\n
<CMDPort>30998</CMDPort>\n
<SubnetMask>255.255.255.0</SubnetMask>\n
<Gateway>192.168.6.1</Gateway>\n
<DNS1>192.168.6.1</DNS1>\n
<DNS2>0.0.0.0</DNS2>\n
Discover
Response