[ale] Local electric/datacom supply retail stores?

[James P. Kinney III]

On Sun, 2004-08-15 at 17:47, Christopher Fowler wrote:
> Can PCI handle the full speed of a 10Gb card?

Need to use PCI-X bus for 10 Gb ethernet.

66MHz*32 bits = 2.112 Gb. This is the absolute flat out MAX the PCI bus
can push.

PCI-X:
4.3 GB/s=34.4 Gb/s = x3 10 Gb ethernet cards = $3700-$4700 EACH!!
(http://www.small-tree.com/10Gb_order.htm 
and
http://www.programmersparadise.com/Product.pasp?txtCatalog=Paradise&txtCategory=&txtProductID=ZHI+D57706)

{NOTE: The smalltree site has a 4 port Gigabit adapter for the PC that
is Linux supported :)}

The Peripheral Component Interface [PCI-X] addendum is an enhancement to
the current 64 bit 66MHz PCI bus specification. The minimum clock speed
for PCI-X is 66MHz [PCI-X 66]. Additional bus speeds include: PCI-X 133,
PCI-X 266 and PCI-X 533 providing up to 4.3GBps [PCI-X 1066 in the
works]
"http://www.interfacebus.com/Design_Connector_PCI_X.html"

> 
> On Sun, 2004-08-15 at 10:54, Mike Panetta wrote:
> > 1Gb/s (not including overhead) is 125MB/s, so its close, but not faster
> > (again not including overhead on the PCI Bus) as PCI is 132MB/s IIRC
> > for 32Bit PCI at 33 MHz.  64Bit PCI at 66MHz would be 4x faster, or
> > 528MB/s so it should be able to handle 4 cards.
> > 
> > Raw PCI bus speeds can be calculated by taking the number
> > of bytes in the bus (4 for 32 or 8 for 64) and multiplying by the
> > clock speed, either 33 or 66MHz.  This is raw bus speed, and
> > I doubt even a burst transfer can sustain that for very long, and
> > I know for a fact single transfers cannot (this ie because the address
> > and data lines are multiplexed in PCI).
> > 
> > Mike
> > 
> > -----Original Message-----
> > From: Christopher Fowler <cfowler at outpostsentinel.com>
> > Sent: Aug 15, 2004 10:38 AM
> > To: Atlanta Linux Enthusiasts <ale at ale.org>
> > Subject: Re: [ale] Local electric/datacom supply retail stores?
> > 
> > Isn't the PCI bus slower than 1GB?  
> > 
> > On Sat, 2004-08-14 at 16:26, James P. Kinney III wrote:
> > > Home Depot & MicroCenter. Lowes has stuff as well but they carry
> > > non-standard plugs and sockets. 
> > > 
> > > Cat6 cable can be found at MicroCenter often, Home Depot never, and
> > > Greybar always. Greybar is a large commercial electrical supply house.
> > > They will not be the least expensive but thy will have it in stock.
> > > 
> > > Price on cable varies depending on application. Cat5e riser is $45/1k'.
> > > Cat5e plenum is $120/1k'. Cat6 riser is around $80/1k' and $225/1k'
> > > plenum. The cost of the plugs and sockets is about double that of cat5e.
> > > 
> > > The wiring scheme is the same for cat6 and cat5 but the tolerances are a
> > > lot tighter on untwisted end lengths. When cat6 says 3/8" untwisted,
> > > THEY MEAN IT! So 3/8" from the last end of the last full twist to the
> > > punch down connector.
> > > 
> > > Cat5e will handle gigabit ethernet. Cat6 will do 10 gigabit. As the
> > > cards that can do 10Gb are still in the $1k+ range, cat5e will do just
> > > fine!
> > > 
> > > 
> > > On Sat, 2004-08-14 at 15:20, Chris Woodfield wrote:
> > > > Hello,
> > > > 
> > > > Are there any local electric/datacom supply retail establishments that 
> > > > one would recommend (other than Radio Shack)? I'm looking for a place 
> > > > that sells things like cable, tools, jacks and punchdown blocks, cable 
> > > > testers, etc.
> > > > 
> > > > I'm asking because I'm about to do a Cat5e cable pull in my house, and 
> > > 
> > > > I'd like to be able to do it as professionally as possible.
> > > > 
> > > > Also, how much would one expect to pay for a 500 foot reel of Cat6? 
> > > > Home Depot has a Cat5e reel for $40, I'm wondering if it's worth the 
> > > > extra cost to go with Cat6, whatever that extra cost may be...
> > > > 
> > > > No mail-order please...I need this stuff by Monday at the latest, as 
> > > > I'm coordinating the cable pull alongside an unexpected plumbing job. 
> > > > Better make the most of having holes in the drywall...
> > > > 
> > > > TIA,
> > > > 
> > > > -Chris
> > > > 
> > > > _______________________________________________
> > > > Ale mailing list
> > > > Ale at ale.org
> > > > http://www.ale.org/mailman/listinfo/ale
> > > > 
> > > > 
> > 
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> > 
> > 
> 
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-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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