As per Relevance of the word datagram, we have this rfc below:

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Network Working Group J.
Request for Comments: 862
May 1983



Echo




This RFC specifies a standard for the ARPA Internet community. Hosts
the ARPA Internet that choose to implement an Echo Protocol are
to adopt and implement this standard

A very useful debugging and measurement tool is an echo service.
echo service simply sends back to the originating source any data
receives

TCP Based Echo

One echo service is defined as a connection based application on TCP
A server listens for TCP connections on TCP port 7. Once
connection is established any data received is sent back.
continues until the calling user terminates the connection

UDP Based Echo

Another echo service is defined as a datagram based application
UDP. A server listens for UDP datagrams on UDP port 7. When
datagram is received, the data from it is sent back in an
datagram






















Postel [Page 1]

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if you see any problems within the linking, don't worry be happy,
this is version 0.1 of the Relevance System and you gotta expect some crappy subroutines sometimes,
just be content we did not write this in Java, which would have made this "bigger and better" HAHAHHA.



RFC documents can be found at I.E.T.F.



Relevance System Copyright © 2002 Spectrum WorldResearch
other technical nosh by ServerMasters Corporation
collaboration of BobX

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