[Beowulf] Choice of GigE switch: again

Joel Jaeggli joelja at darkwing.uoregon.edu
Fri Sep 16 16:13:25 EDT 2005


On Fri, 16 Sep 2005, Mikhail Kuzminsky wrote:

> I'm looking for relative cheap GigE 16-port switch for building
> of Beowulf cluster. 
> 1) The choice I have (prices are here in Russia):
>
> NetGear GS116 ($280-$300)
> Linksys SR2016 ($315-$460) w/Lifetime warranty, "non-blocking"
> SMC GS16 ($320-$360)
> D-Link DGS-1016D ($260-$280)
>
> Many vendors don't say as usually about "system bus throughput",
> i.e. about possibility of simultaneous support of full GigE bandwidth
> on all the switch ports. D-Link say about 32 Gbps, Linksys - about
> "non-blocking".

The broadcom and marvell asics that most of these small switches are made 
on can do full capacity across all ports these days.

http://www.broadcom.com/products/Enterprise-Small-Office/Gigabit-Ethernet-Switching-Products/BCM5346M

http://www.broadcom.com/products/Enterprise-Small-Office/Gigabit-Ethernet-Switching-Products/BCM5388

http://www.marvell.com/products/switching/index.jsp

> Sorry, do somebody have any information about their pluses/minuses,
> 1st of all from the viewpoint of internal bus throughput ? 
> 2) Next step may be support of "Jumbo frames". I know only about SMC8524T 
> 24-port switch (it costs here $465-$480 w/1 year of warranty); Dell 
> PowerConnect 5324 costs about $1100+
> Is there some other not expensive swicthes w/Jumbo frames ?
>
> 3) May be some reasons to buy (for cluster) more expensive switches
> like HP ProCurve 27xx (24 port J4897A) ?
>
> Yours
> Mikhail Kuzminsky
> Computer Assistance to Chemical Research Center
> Zelinsky Institute of Organic Chemistry
> Moscow
> 
>
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Joel Jaeggli  	       Unix Consulting 	       joelja at darkwing.uoregon.edu
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