Re: [SLUG] Network Errors

2000-04-20 Thread Ben Donohue

Australian PCAuthority had a fairly good article on how and why these
sort of network errors cause problems.
April 2000 issue. page 188.

basically try manually setting the cards to half duplex first, 10mbs,
etc.
also some hubs set themselves (all their ports) to the speed and/or
duplex of the *first* network card that connects. all the others have to
conform to that. too bad if the second connecting card is switched to
full duplex, 100mbs. it will have problems connecting etc.

well this is what the article says anyway.
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Re: [SLUG] Network Errors

2000-04-17 Thread Adrian Chiang


I had a similar problem about a year ago at a client's site. I tried
several cards. 
Acer PCI Realtek RTL8139 cards, generic ISA  PCI NE2000 cards,
none of them worked with a Netgear 100Mb Hub.

The problem occured when people sent large attachments from their 100Mb
card desktop, 
through the linux gateway. It does IP Masq. thru a modem dialup. It
seems to
flood the network card and bring down the network interface requiring a
reboot.

But then I tried a 3com515 ISA 10/100 card, and it was the only one 
that worked. Apparently even though the 3c515 card is 10/100 the ISA
port doesn't go that fast, hence restricting the speed. 

Anyway, you can't buy those cards anymore, so like the old saying,
"they don't make it like they use to" applies once more. :)

You may be able to pick them up second hand though 

Regards,
Adrian.


"Grahame M. Kelly" wrote:
 
 Hi All.
 
 I have five machines of a 10BaseT HUB. Two machines have 100/10BaseT
 cards, the others have either ISA or PCI 10BaseT cards. I am running
 kernel 2.2.14.
 
 I have checked all cables with the specific cable tester, and
 exchanged the HUB with the same model but still the same problem
 remains.
 
 Transferring 200MB of ftp data from/to 100/10BaseT machines - NO
 problems or errors are indicated by ifconfig.

snip
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Re: [SLUG] Network Errors - Final

2000-04-17 Thread Grahame M. Kelly


Hi all. Well the problem solved itself yesterday - the 10BaseT HUB
burst into smoke and flame - good indication I had to get another HUB
sadly  ;-(

The network problems have gone now I have a 100BaseT Switch (only
$180 from North Rocks Computer Markets).

 "Grahame M. Kelly" wrote:
  
  Hi All.
  
  I have five machines of a 10BaseT HUB. Two machines have 100/10BaseT
  cards, the others have either ISA or PCI 10BaseT cards. I am running
  kernel 2.2.14.
  
  I have checked all cables with the specific cable tester, and
  exchanged the HUB with the same model but still the same problem
  remains.
  
  Transferring 200MB of ftp data from/to 100/10BaseT machines - NO
  problems or errors are indicated by ifconfig.

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Re: [SLUG] Network Errors

2000-04-13 Thread Angus Lees

On Thu, Apr 13, 2000 at 04:37:11PM +1000, Dean Hamstead wrote:
 Ive found that 100mbps -- 10mbps transfers go badly.
 This is due (from what ive gathered from various lists) 
 that my switch is just dropping packets and not telling, so the sender
 waits for a time out then sends again.
 I fixed this by locking down the 100mbps to 10hd. Which is bad
 considering the cash i paid for the intel inbuisness switch.
 I think smart switches might be better at 100 -- 10 mbps conversion

if you were really bored and still didn't want to buy another 100M
card, you could try messing around with the 2.2/2.4 routing stuff and
throttling traffic destined for the 10M host down to 10Mbps - leaving
the rest still running at 100Mbps..

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Re: [SLUG] Network Errors

2000-04-13 Thread Dave Fitch


Dean Hamstead [EMAIL PROTECTED]
 I fixed this by locking down the 100mbps to 10hd. Which is bad
 considering the cash i paid for the intel inbuisness switch.
  ^^^
sounds like the problem to me!

Dave.
(ok I'm biased and think intel sucks)
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[SLUG] Network Errors

2000-04-13 Thread Grahame M. Kelly

Thanks DaZZa, Dean, Gus and others.

I have tried using the setup disk to 10 Mb mode but without result.
I assume purchasing a 100BaseT HUB would be the best solution
- Yes ?

Thanks Grahame.
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Re: [SLUG] Network Errors

2000-04-13 Thread Moo!

On Thu, 13 Apr 2000, Kieran wrote:

 Sorry, I won't stand by and have you bash Intel.  My Intel InBusiness
 4port Hub works sweetly, haven't had a problem with it and my 3com
 cards
 
 Okay so I like name brands :-)

I don't :)  My Skymaster 10/100 cards (rebadged Accton with Realtek chip)
and Mototech 10/100Mbit switch (rebadged Skymaster rebadged Accton), give
quite considerable results aswell *grins*

Andrew.

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Re: [SLUG] Network Errors

2000-04-13 Thread Dave Fitch


Kieran [EMAIL PROTECTED]
 Sorry, I won't stand by and have you bash Intel.  My Intel InBusiness
 4port Hub works sweetly, haven't had a problem with it and my 3com
 cards

there's probably less for them to stuff up in a hub rather than
a switch.

 Okay so I like name brands :-)

Cisco good, 3com good, intel bad.

Dave.
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Re: [SLUG] Network Errors

2000-04-13 Thread DaZZa

On Thu, 13 Apr 2000, Kieran wrote:

 Sorry, I won't stand by and have you bash Intel.  My Intel InBusiness
 4port Hub works sweetly, haven't had a problem with it and my 3com
 cards

Then you're amongst the .01% who haven't.

Seriously, 3Com and Intel cards are amongst _the_ most problematical I've
worked with - and, believe me, I've been working with LAN gear a _long_
time.

 Okay so I like name brands :-)

I don't. I like working brands. :-)

DaZZa

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