Browse Prior Art Database

Echo Protocol (RFC0862)

IP.com Disclosure Number: IPCOM000003910D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 1 page(s) / 1K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR

Abstract

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

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 100% of the total text.

Network Working Group J. Postel

Request for Comments: 862 ISI

May 1983

Echo Protocol

This RFC specifies a standard for the ARPA Internet community. Hosts on

the ARPA Internet that choose to implement an Echo Protocol are expected

to adopt and implement this standard.

A very useful debugging and measurement tool is an echo service. An

echo service simply sends back to the originating source any data it

receives.

TCP Based Echo Service

One echo service is defined as a connection based application on TCP.

A server listens for TCP connections on TCP port 7. Once a

connection is established any data received is sent back. This

continues until the calling user terminates the connection.

UDP Based Echo Service

Another echo service is defined as a datagram based application on

UDP. A server listens for UDP datagrams on UDP port 7. When a

datagram is received, the data from it is sent back in an answering

datagram.