Ivan

> IIRC (number 1)

You certainly have remembered correctly - I would wish my students could 
remember as well and summarise the 3 "X"s as competently!

The abbreviation for the class was X.25 and the abbreviation for the topic 
within the class was PAD. 

I never actually described the topic as "the X.3 PAD" since that tends to 
ignore the other two "X"s: the vital X.28 and the optional X.29. However that 
description is rather common since it highlights the parameters. Another 
description is actually, and perhaps confusingly, the "3 X PAD".

> IIRC (number 2)

Suddenly finding that what you key on the keyboard is no longer displayed on 
the monitor can be a deeply traumatic experience for those brought up on 
3270 or 2260!

Chris Mason

On Tue, 1 Jul 2008 13:14:05 +0200, Ivan Warren <[EMAIL PROTECTED]> 
wrote:

>Chris Mason wrote:
>> I learned all about this topic even before I started playing with UNIX 
systems
>> by having to teach X.25 PAD and the 3708 protocol converter. There's no
>> better way to drive the point home than by having students in an X.25 
class
>> enter set 2:0 .
>>
>>
><ot>
>
><knitpicking>
>Err..
>
>IIRC, actually, that'd be an X.3 PAD[1]. X.25 describes the packet
>interface, X.29 describes how to use X.25 to send control commands from
>a DCE to a PAD (using qualified packets), and X.28 defines how to
>interact with the PAD from a DTE (entering commands following and escape
>command, usually by sending a DLE (^P), but might be different when not
>using Prof0).
></knitpicking>
>
>IIRC, SET 2:0 should turn PAD echo off right (that is not the local
>echo, but the echo of characters received from the PAD back to the
>terminal).
>[1] For ref : PAD stands for Packet Assembler Disassembler and is
>designed to allow a start/stop terminal to interact with an X.25
>connected system.
>
></ot>

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