Re: Only 8Mb/s with a 10/100 card
This is not a problem with DLINK cards. This is true of ANY manufacturer's 16-bit PCMCIA card (Xircom, 3Com, Intel, etc.) Since there is no such thing as a "15mbps hub", or a "20mbps hub", it wouldn't make sense to call it a 20mbps PC Card. These kind of cards do connect to 100mbps networks, although they don't fully realize the entire bandwidth.
If you want the full throughput, you need a Cardbus PC Card instead.
Jared Valentine
hidden@xmission.com
At 08:40 AM 9/15/2000 -0300, Carlos Menezes wrote:
>People,
>I can not believe it. I'm not doubting about information sent by Jared, but how is possible
>this kind of misinformation by DLINK????????
>If I buy 1 10/100 PCMCIA card, it's clear that I intend to use it at 100 Mbps.........:-((
>Am I wrong??
>Please, send me suggestions!
>
>Carlos Menezes.
>
>Jared Valentine wrote:
>
>> PCMCIA = 16bit = Maximum of 15-20mbps throughput (this is a limitation of the 16-bit bus...)
>> Cardbus = 32bit = full 100mbps throughput (as long as the rest of the laptop can handle it)
>>
>> PC Card is used interchangably between the two. The DFE-650TX is only a 16-bit PCMCIA card, and therefore won't get anything over 20mbps. Now why is the throughput at 8mbps? Your guess is as good as mine...
>>
>> Jared Valentine
>> hidden@xmission.com
>>
>> At 07:18 PM 9/14/2000 +0200, Bart-Jan Vrielink wrote:
>> >On Thu, 14 Sep 2000, Carlos Menezes wrote:
>> >
>> >> I have a DLINK 10/100 PCMCIA card (DFE-650TX) in my laptop (I installed
>> >> the last version of PCMCIA package: 3.1.20) and a Realtek 8139 PCI
>> >> 10/100 card in my desktop. The adapters are linked by a crossover cable
>> >> with RJ-45 plugs.
>> >> DFE-650TX is setted up to autonegociation (it is the only one option;
>> >> when I try ifport eth0 100baseT, a error message is displayed) and I can
>> >> set up the link mode at Realtek 8139 with mii-diag program.
>> >> I got only 8 Mbits/s at a ftp test by copying a 14Mbytes archive.
>> >> Does anyone have suggestions???
>> >
>> >Is it a PCMCIA card or a PCcard ??
>> >PCcards are much newer and are much faster (compare with ISA vs. PCI).
>> >I have a Intel EtherExpress Pro/100 pcmcia card and I get the same results
>> >as you have. At best it is at 100 Mbit/s just a little bit faster than at
>> >10 Mbit/s but at 100Mbit it uses much more CPU time. So whenever I can
>> >choose between 10 MBit and 100 MBit, I have it set on 10 MBit.
>> >
>> >--
>> >Tot ziens,
>> >
>> >Bart-Jan
>> >
>> >
>> >--
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>>
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