GE MDS Master Station Technical Manual page 60

TCP Server/Client specific configuration options include:
Local IP Port – The TCP port number that the server will listen for connections on.
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Server IP Address – The IP address of the server the Master Station is to connect to.
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Remote IP Port – The TCP port that the server is listening on.
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IPv4 Bind IP – If the Master Station is configured with multiple IP interfaces; you can
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specify that the IP Payload service only will listen for connections on one of the IP
addresses of the system. This is useful in VLAN configurations where you wish to only
make the IP Payload server available on a specific VLAN in the system.
UDP:
When operating in UDP mode, the IP Payload service uses the connectionless UDP protocol.
Since UDP is connectionless, there must be receiving sockets at each end of the connection to
allow for bi-directional communications. In this mode, when an application has traffic to send
out over the SD network, it will establish a UDP connection to the Master Station and transmit
the payload data. When the Master Station receives over-the-air payload data from remote SD
radios, the Master Station will establish a UDP connection to the application and transmit the
payload data. These connections are not persistent, and as such must be established for each
transmission. Unlike TCP, transmissions are not guaranteed when using the UDP protocol;
however UDP has a far smaller network overhead than TCP, and as such will result in lower la-
tency.
56 MDS™ Master Station MDS 05-6399A01, Rev. E