Comparison of the network protocol alternatives (2)

Use UDP... and then chose what you want get from TCP and implement it...

But not more than one or two options, or then come back to TCP/IP !

• Packet ordering ... Serial Number

• Common ordering ... Time stamp (+ NTP : Network Time Protocol)

• Recovery of lost data ... Acknowledgement (Positive or negative acknowledgement scheme)

• Flow control ... receiving application send quench packet when its queue is full)

Issue in broadcasting and Multicasting... mix of packet with other application

• Use the human planification

• Detect the conflict and switch to a new port number

• Use protocol and instance magic number (a "server" decide of a common ID for the session)

• Use encryption

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