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PA2AGA > TCPDIG 31.08.96 03:58l 194 Lines 6729 Bytes #-10902 (0) @ EU
BID : TCP_96_175C
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Subj: TCP-Group Digest 96/175C
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Date: Fri, 30 Aug 96 22:38:38 MET
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Subject: TCP-Group Digest 96/175C
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>----------------Begin Forwarded Message----------------<
Date: Wed, 28 Aug 1996 19:48:28 -0700 (PDT)
From: "Dana H. Myers" <myers@bigboy>
Subject: Re: AX.25 - that darn PID
To: David Kelly <dkelly@hiwaay.net>
>
> On 20:27:06 Carl Makin wrote:
> >>
> >On Tue, 27 Aug 1996, Dana H. Myers wrote:
> >
> >> So, I've prototyped a DLPI AX.25 driver (under SunOS 5.x) and it works as
> w ell
> >> as I expected. I'm currently only using datagram mode for IP frames, and
> >> don't support AX.25 connections at all.
> >
> >Hmmm.. I run FreeBSD. I wonder how portable your implementation is?
>
> FreeBSD doesn't have streams for much the same sentiments as Alan voiced,
> namely "lack of respect for performance."
FreeBSD doesn't have streams because it is BSD, and everyone
knows that BSD is the one true Unix. Streams are an evil System
V thing, to be hated.
OK, sarcasm aside, there's this natural reaction people seem to have
when it comes to streams, to immediately complain about poor performance.
Other than the vague "it's complicated and stuff", what information are
people basing the performance complaints on? Are streams devices and
modules really fundamentally poor performers?
I don't think so. Streams devices and modules can be built differently -
I've seen modules that needlessly enqueue messages before processing them,
thus taking a big latency hit. Does anyone have anything solid to
explain the prejudice?
Dana KK6JQ
Dana@Source.Net
>----------------End Forwarded Message----------------<
------------------------------
Date: Wed, 28 Aug 1996 10:01:59 +0100 (BST)
From: Alan Cox <alan@cymru.net>
Subject: PPP/SLIP in connected AX25?
> Speaking of which, how widely are TCP timestamps supported? I've seen
> them in BSDI, and I did them in NOS a while ago.
Pretty variable. I've yet to add PAWS to Linux but it is in FreeBSD/NetBSD.
IPv6 makes the timestamps mandatory by accident as it removes the time of
packet life guarantees.
Alan
------------------------------
Date: Wed, 28 Aug 1996 07:31:49 +0100
From: Matthew Phillips <matt@nuthatch.dungeon.com>
Subject: PPP/SLIP in connected AX25?
Hi all,
I believe the idea of allowing users to access amprnet with standard
Win95 equipped PC's etc to be a very good one. It has always struck me
that with some minor mods the 'TheNet X1J' TNC2 software would do all that
is needed.
As a reminder TheNet X1J provides an IP router, NET-ROM and normal ax25
capability to a TNC2. It handles ARP correctly to can create ax25 packets
with all the correct callsigns etc without needing this info on a packet
by packet basis from the host.
TheNet X1J currently talks NRS (NET-ROM speak) or KISS out of its RS232
port. I would think it would not be difficult to add SLIP to this.
Myself and another ham here in the UK are just completing the development
of a TNC2 clone which runs upto 57K6 from its radio modem and feel this type
of setup could get a lot more users up and running on radio based IP.
---
Best Regards Matt
Internet:------- matt@nuthatch.dungeon.com
Amprnet :------- g6wpj@gb7eip.ampr.org
AX25 BBS:------- G6WPJ@GB7EIP.#31.GBR.EU
GMSK Radio modem kit details on:
http://www.g8stw.demon.co.uk/
------------------------------
Date: Wed, 28 Aug 96 10:45:00 -0000
From: mikebw@bilow.bilow.uu.ids.net (Mike Bilow)
Subject: PPP/SLIP in connected AX25?
Phil Karn wrote in a message to Mike Bilow:
PK> The local cable company (which has been trenching the
PK> streets just about everywhere for the past year) is mumbling
PK> something about cable Internet access coming to San Diego by
PK> the end of the year. They're tossing around prices like
PK> $19.95 or $29.95/mo flat rate, modem included.
PK> That certainly raises the ante, eh?
I have serious reservations about the cable companies. I don't know about
yours, but I have never yet seen a cable company for whom making a customer
appointment was not a major upheaval in their day. If these outfits ever hope
to compete with telephone companies, they have a lot to learn about service.
All cable modem ideas seem to depend upon technology which is grossly unsuited
to network access. In particular, they are highly asymmetric with lots of
bandwidth to you and little bandwidth from you, and what bandwidth there is to
you must be shared. I am convinced that they are really secretly building an
infrastructure for video on demand or -- worse -- home shopping.
-- Mike
------------------------------
Date: Wed, 28 Aug 1996 17:40:04 +0000 (EST)
From: csmall@gonzo.apana.org.au
Subject: PPP/SLIP in connected AX25?
> Karn>A Motorola BitSurfer and an ISDN line.
>
> BitSurfRs are $260 mailorder in the USA. PacBell wants $200 for the
> ISDN installation and $24 for the first month, which will give you 112
What's the cost for the line for the following months?
In Australia, ISDN is not really an option for normal users. It's been a
while since I've done some costings, but it was serious bucks, perhaps 10x
what you would pay. A normal phone line is about $8/mth rental, which is ok.
Ask for anything else, even a leased line, and the costs go up rapidly.
But hey, this is the place where most "high-speed" amateur nets are 4800.
- Craig vk2xlz
--
// /\ | | | | ... Craig Small ... ... csmall@gonzo.apana.org.au
||==|--|====|===|==|=| ... [44.136.13.17].. ...csmall@gonzo.vk2xlz.ampr.org
\\ \/ | | | | ... Minto, Australia... VK2XLZ@VK2GDM.NSW.AUS.OC..
------------------------------
Date: 28 Aug 96 12:14:18 -0700
From: "Jack Brindle" <jackb@apple.com>
Subject: PPP/SLIP in connected AX25?
>> What about plugging a standard Winsock stack that supports PPP or
>SLIP
>> (like the one that built into Windows 95) into a conventional (not
>> KISS) AX25 TNC and connecting it to a suitably configured NOS
>gateway?
>
>No, I'm wrong, doesn't matter how many times I read that, it says the
>same thing.
>
>Phil, what do you see here as attractive enough to pursue ?
Actually this is quite interesting. The metricom folks have been quite
To be continued in digest: tcp_96_175D
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