Submission for mod-protocols-tcp-ip
gor...@maccs.uucp.uucp
From: gor...@maccs.UUCP (Gordan Palameta)
Newsgroups: mod.protocols.tcp-ip
Subject: TCP retransmission
Keywords: retransmission algorithm
Message-ID: <5...@maccs.UUCP>
Date: 4 Apr 87 03:48:50 GMT
Reply-To: gor...@maccs.UUCP (Gordan Palameta)
Distribution: world
Organization: DCSS, McMaster University, Hamilton, Ontario, Canada
Lines: 20
Hello...
I'm currently writing some TCP-IP code (for a PDP-11 running RT-11), and am
looking to do retransmissions correctly.
From what I've read here, poor retransmission behavior is a major source
of congestion... although my code is intended for a very lightly loaded
Ethernet and I can get away with being sloppy, if there's a painless way to
do it right for the general case, it would be nice to put it in.
I understand the idea of exponential backoff, and know of the RTT-based
algorithm suggested in the RFC (which I believe is what BSD 4.2 uses (?))...
is this the proper algorithm to use, or is there a better one?
Thanks for any info...
--
UUCP: ... !seismo!mnetor!lsuc!maccs!gordan (note ..dAn or mail may bounce)
BITNET: GP@TANDEM ^ <---'
Gordan Palameta
mh...@oce.nl.uucp
From: mh...@oce.nl (Maarten Schoonwater)
Newsgroups: mod.protocols.tcp-ip,comp.sys.m68k,mod.computers.68k
Subject: TCP-IP for 68000 VERSAdos system
Message-ID: <2...@oce-rd2.oce.nl>
Date: 8 Apr 87 10:02:23 GMT
Reply-To: mh...@oce-rd2.UUCP (Maarten Schoonwater)
Organization: Oce-Nederland bv, Venlo, the Netherlands
Lines: 10
We have several 68000 based systems that we need to interface with an
Ethernet using TCP-IP protocols. The systems run under the Motorola
VERSAdos operating system on a VME-bus. Till now we only found Unix based
TCP-IP implementations. Support for ftp and perhaps telnet would be
sufficient. Does anyone know of possible solutions??
Maarten Schoonwater Usenet: mh...@oce.nl
Oce-Nederland B.V. mail : P.O. 101 5900MA Venlo
R&D department The Netherlands
ha...@umn-cs.uucp.uucp
From: ha...@umn-cs.UUCP (Samudra E. Haque)
Newsgroups: mod.protocols.tcp-ip
Subject: Re: TCP on an HP 3000
Keywords: TCP HP3000 HP9000
Message-ID: <14...@umn-cs.UUCP>
Date: 11 Apr 87 04:52:09 GMT
Article-I.D.: umn-cs.1476
Posted: Fri Apr 10 22:52:09 1987
References: <59...@dartvax.UUCP>
Organization: CSci Systems Group,University of Minnesota,Mpls.
Lines: 24
In article <59...@dartvax.UUCP>, richb...@dartvax.UUCP (Richard E. Brown) writes:
>
> I wasn't paying much attention a couple of months ago, but I seem
> to remember that someone said that there was an implementation of
> TCP on HP3000 computers.
>
Speaking of HP's..
We have HP 9000/200 and /300 machines. While the /300 have full
networking (psuedo BSD), the /200 machines do not have any networking
hardware available for them. (according to our HP rep) We are running
HP/UX on them.
Am I wrong in assuming that there really is no future for networking
the /200 machines or that they might become very expensive to have
networking on ?
Samudra E. Haque
Computer Science Systems Group
University of Minnesota
Minneapolis, MN 55455
ha...@umn-cs.arpa or ..!dayton!umn-cs!haque
or (612) 625-0876
tai%h...@hplabs.hp.com.uucp
|
|We have HP 9000/200 and /300 machines. While the /300 have full
|networking (psuedo BSD), the /200 machines do not have any networking
|hardware available for them. (according to our HP rep) We are running
|HP/UX on them.
|
|Am I wrong in assuming that there really is no future for networking
|the /200 machines or that they might become very expensive to have
|networking on ?
|
| Samudra E. Haque
The 9000/200 is virtually identical to the 9000/300 series. That is,
they can run the same software (kernel is different though) and use the
same networking hardware. However, the 200 is no longer supported; the
5.17 release of HP-UX is the last release which works for the 200 series.
On the other hand, I've built a 5.17 kernel with the latest networking code
(5.3) for use with the 200 series.
..tai
dae...@decwrl.dec.com.uucp
From: mobb...@tpov02.dec.com (Mobby Lin, Taiwan Software Services)
Newsgroups: mod.protocols.tcp-ip
Subject: What's vendor support TCP-IP
Message-ID: <92...@decwrl.DEC.COM>
Date: 13 Apr 87 06:29:50 GMT
Sender: dae...@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 16
hi everyone,
I am more interested in TCP/IP. Does someone know what's third party software
and its hardware can support the tcp/ip and what's model and how to contact
those products can ported into Wang, Tandem, IBM and NEC.
Now I am planning to connect VAX to Wang, Tandem, IBM and NEC, based on X25
on layer 1, 2, 3 and layer 4,5 used on tcp/ip.
my address at
mobbylin%22599....@decwrl.arpa
Software Services, Taiwan Digital Equipment.
regards,
Mobby Lin