----- Original Message -----
From: "Or Botton" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, December 13, 2000 2:22 PM
Subject: [SURVPC] TCP/IP on XT
> Does anyone have TCP/IP working ok on an XT?
> According to an article on FreeDOS's site, this is impossible due
> to required CPU speeds. It says that its quite heavy, and therefor IPX
> is more recommended for anything below 286 systems.
Perhaps I wrote it. Is it then Dos Networking HT 0.2.3?
I wrote this because on slow XT computers attached to fast modems, PPP
compression and TCP/IP handling cause a lot of problems. Also memory
requirement are higher on TCP/IP than IPX. This happned because IPX has been
designed to work over a LAN, but TCP-IP has been designed to work over a
WAN; for examples TCP/IP checks packets integrity but IPX does not it, this
control consumes processor time.
If your computer is slow and your modem is fast, packet processing overhead
can be a serious problem.
Nobody can avoid you to use TCP/IP over a Commodore 64 but keep in your mind
that it is a heavy network stack.
If you use NCSA telnet on an old XT attached to Internet using DOSPPP, you
can make experience about how heavy is PPP & TCP/IP for 8088 (4.77 Mhz
computers). In this case one packet is sent for each keystroke using TCP
protocol, if PPP compression is enable software slow down, but if
compression is not enable packets are larger and take more time to be sent.
>
> This sounds rather strange to me, as I have heard of people in this
> list allready using nettamer and bobcat on an XT?..
This software is an all-in-one solution and surely code is optimezed, this
can be reached meltdown differents networks layers into a "BLOB". This kind
of software (like NCSA TCP/IP stack) is far from be a good TCP/IP since some
serivices' port are hardcoded and other minor hacks has been made.
IPX is simple, fast and does not consume too much processor time. IPX does
not need a DNS, it does not need ARP protocols and RARP one... ecc... It
easy for XTs get TCP/IP timeout when connected in LAN using TCP/IP.
>
> (not to mention the Atari ST)
>
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