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From j...@apache.org
Subject [jira] Commented: (DIRSEDA-4) Create an Echo ProtocolProvider in examples
Date Thu, 16 Sep 2004 04:45:39 GMT
The following comment has been added to this issue:

     Author: Alex Karasulu
    Created: Wed, 15 Sep 2004 9:45 PM
       Body:
This RFC is so darn small we might as well just plug it in here:

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.


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View this comment:
  http://issues.apache.org/jira/browse/DIRSEDA-4?page=comments#action_53122

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View the issue:
  http://issues.apache.org/jira/browse/DIRSEDA-4

Here is an overview of the issue:
---------------------------------------------------------------------
        Key: DIRSEDA-4
    Summary: Create an Echo ProtocolProvider in examples
       Type: Task

     Status: In Progress
   Priority: Major

    Project: Seda Framework

   Assignee: Alex Karasulu
   Reporter: Alex Karasulu

    Created: Wed, 15 Sep 2004 9:41 PM
    Updated: Wed, 15 Sep 2004 9:45 PM

Description:
We will be implementing the trivial echo protocol as defined by RFC 862 here: http://www.faqs.org/rfcs/rfc862.html.


The neat thing about this example is it will bring into question response synchronization
especially if we want to presume a chunk = a request as we receive data and stream it back
out.  This is an important consideration that may not have come about without using this protocol
as an example.



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