I didn't know you could bind ports like that. Cool!
Russell, if they haven't got one already, get a 100Mbps switch
involved. The iMacs come with 10/100 Full Duplex capable ports, so
everything should be fine. However, their negotiation with 10/100 is
quite poor, so you'll need to tell Linux to tell the NIC to set at
100half or 100full duplex. If you're dual booting the iMacs, you'll
need an extension if the MacOS has trouble with the switch. I've had
difficulties with my NetGear 10/100 switch. Let me know offline if I
can help with the Mac stuff.
Mario
>Can you install multiple 100mps cards and bind them?
>----- Original Message -----
>From: "Derek Glidden" <dglidden@illusionary.com>
>To: <slug@nks.net>
>Sent: Wednesday, May 08, 2002 11:28 AM
>Subject: Re: [SLUG] NFS and bandwidth
>
>
>> On Wed, 2002-05-08 at 09:02, Russell Hires wrote:
>> > -----BEGIN PGP SIGNED MESSAGE-----
>> > Hash: SHA1
>> >
>> > Hello everyone,
>> >
>> > I volunteer at a Weightman Middle School in Wesley Chapel and there's a
>> > computer lab full of iMacs (about 30). I've finally gotten Linux
>installed on
>> > one of them, and now I'm going to use the one as an NFS server for the
>others
>> > that I plan on booting into Linux as diskless workstations. But the Tech
>> > coordinator voiced some trepidation about this as it relates to
>bandwidth,
>> > because even though there is a ton of Macs in that school, bandwidth
>still is
>> > ridiculously small. So, my question is: how much bandwidth does NFS use?
>How
>> > much will it affect the network? Are there any other questions I should
>be
>> > asking? Any suggestions?
>>
>> NFS is not known for its network efficiency, but it's certainly less
>> chatty than Appletalk (MacOS) or SMB (Windows) for filesharing, which
>> both rely on lots of broadcast traffic to figure out what's on the
>> network with them.
>>
>> Asking "how much bandwidth" for a network filesharing protocol is kind
>> of a non-question, though since it's going to be dependent on the size
>> file you're transferring, how many people are utilizing the NFS server,
>> etc. Obviously, if one person is reading one small file over the
>> network, it'll be fast. If twenty people are trying to read very large
>> files over the same network, it'll be slower. It's not going to be
>> significantly different from anything else they might be using there
>> overall since you're still just moving files around the network and the
>> whole question is more related to the size of the files than anything
>> else.
>>
>> I'd recommend, if possible, putting a 100Mbps card in the server if
>> that's all you can get away with. That would at least allow the server
>> to serve up, theoretically, ten different 10Mbps clients before hitting
>> its own bandwidth limitations. On a 100Mbps network, of course. If the
>> whole network is only 10Mbps, then never mind...
>>
>> > The reason for all of this is the GIMP. Photoshop licenses aren't cheap!
>> > There's an art professor that comes in to the school to teach some of
>the
>> > more artistically gifted students every so often. I don't know his
>schedule,
>> > though, which means I haven't been able to show him this free software
>yet.
>> > So I figure this is a great use for Linux! :-D
>>
>> I think once you show it off, and explain the fact that's it's all free
>> software, any complaints about network performance will be
>> overridden... :)
>>
>> --
>> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>> #!/usr/bin/perl -w
>> $_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map
>> {$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;
>> $t^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)
>> [$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h=5;$_=unxb24,join
>> "",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$d=
>> unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d
>> >>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*
>> 8^$q<<6))<<9,$_=$t[$_]^(($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}
> > print+x"C*",@a}';s/x/pack+/g;eval
>>
>> usage: qrpff 153 2 8 105 225 < /mnt/dvd/VOB_FILENAME \
>> | extract_mpeg2 | mpeg2dec -
>>
>> http://www.cs.cmu.edu/~dst/DeCSS/Gallery/
>> http://www.eff.org/ http://www.anti-dmca.org/
>>
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