Robert Parkhurst | 2 Jul 23:48 2007
Travis | 3 Jul 01:51 2007
Mark R Ward | 3 Jul 04:11 2007
Jim C. Nasby | 3 Jul 17:48 2007

Re: network switch benchmark comparision

On a related note... anyone know of any comparisons of lower-end Gig-E
switches? I bought one recently and tried to find a good one, but the
latency seems really crappy (> 1ms, unloaded).

On Mon, Jul 02, 2007 at 06:51:51PM -0500, Travis wrote:
> On Mon, Jul 02, 2007 at 04:48:46PM -0500, Robert Parkhurst wrote:
> > I'm looking into network switches at work.  We're standardized on D-Link GbE
> > "workgroup" switches, but I don't think we're getting a lot out of them 
> > (i.e.
> > general LAN use seems to go slower than it should being GbE).  I'm curious
> > if anyone knows of any sort of benchmark comparisions between various
> > switches (like D-Link, Linksys, Cisco, Extreme, Netgear, etc.).
> 
> Ultimately, you have two things to really worry about:  how fast/large the
> switch fabric is on the backplane and how many uplinks you have between
> your switches to your cores.
> 
> From the descriptions of the D-link hardware that I see on their website, it
> looks like their switch fabric is capable of driving all end-user ports at full
> duplex at the same time (so, 24 Gb ports has a 48Gbps switch fabric).  I can't
> tell if their uplink ports can be used in addition to all ports or if they
> "piggyback" on some of the copper ports (for example, I know Nortel baystacks
> treat ports 47 and 48 as either copper or fiber uplinks, but not both
> at the same time).
> 
> I think the real issue you're going to be dealing with is the number of
> uplinks you're sticking on each switch and being able to trunk your uplinks
> together for increased bandwidth.  One thing to realize is that when you're
> doing trunking like this, any one system contacting another system on the
> other side of the uplink is still only going to get a maximum of 1Gb/s.  
(Continue reading)

Jim Parkhurst | 3 Jul 17:54 2007
Tony Jarnigan | 3 Jul 18:00 2007
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Re: network switch benchmark comparision

On 7/3/07, Jim C. Nasby <decibel-ft4DTYm7hStAfugRpC6u6w@public.gmane.org> wrote:

On a related note... anyone know of any comparisons of lower-end Gig-E
switches? I bought one recently and tried to find a good one, but the
latency seems really crappy (> 1ms, unloaded).

Try this:

http://www.smallnetbuilder.com/content/view/29915/51/
<div>
<p>On 7/3/07, Jim C. Nasby &lt;<a href="mailto:decibel@...">decibel@...</a>&gt; wrote:</p>
<div>
<span class="gmail_quote"></span><blockquote class="gmail_quote">
On a related note... anyone know of any comparisons of lower-end Gig-E<br>switches? I bought one recently and tried to find a good one, but the<br>latency seems really crappy (&gt; 1ms, unloaded).<br>
</blockquote>
</div>
<br>
Try this:<br><br><a href="http://www.smallnetbuilder.com/content/view/29915/51/">http://www.smallnetbuilder.com/content/view/29915/51/</a><br>
</div>
Jim C. Nasby | 3 Jul 21:33 2007

Re: network switch benchmark comparision

On Tue, Jul 03, 2007 at 11:00:38AM -0500, Tony Jarnigan wrote:
> On 7/3/07, Jim C. Nasby <decibel@...> wrote:
> >
> >On a related note... anyone know of any comparisons of lower-end Gig-E
> >switches? I bought one recently and tried to find a good one, but the
> >latency seems really crappy (> 1ms, unloaded).
> >
> 
> Try this:
> 
> http://www.smallnetbuilder.com/content/view/29915/51/

Thanks, I'll have to keep that site in mind next time I'm buying
infrastructure!
-- 
Decibel!, aka Jim C. Nasby, Database Architect  decibel@... 
Give your computer some brain candy! www.distributed.net Team #1828
On Tue, Jul 03, 2007 at 11:00:38AM -0500, Tony Jarnigan wrote:
> On 7/3/07, Jim C. Nasby <decibel@...> wrote:
> >
> >On a related note... anyone know of any comparisons of lower-end Gig-E
> >switches? I bought one recently and tried to find a good one, but the
> >latency seems really crappy (> 1ms, unloaded).
> >
> 
> Try this:
> 
> http://www.smallnetbuilder.com/content/view/29915/51/

Thanks, I'll have to keep that site in mind next time I'm buying
infrastructure!
--

-- 
Decibel!, aka Jim C. Nasby, Database Architect  decibel@... 
Give your computer some brain candy! www.distributed.net Team #1828
Thomas Cameron | 3 Jul 22:10 2007

Re: network switch benchmark comparision

Jim C. Nasby wrote:
> On Tue, Jul 03, 2007 at 11:00:38AM -0500, Tony Jarnigan wrote:
>> On 7/3/07, Jim C. Nasby <decibel@...> wrote:
>>> On a related note... anyone know of any comparisons of lower-end Gig-E
>>> switches? I bought one recently and tried to find a good one, but the
>>> latency seems really crappy (> 1ms, unloaded).
>>>
>> Try this:
>>
>> http://www.smallnetbuilder.com/content/view/29915/51/
> 
> Thanks, I'll have to keep that site in mind next time I'm buying
> infrastructure!

FWIW I have a Linksys JGS524 switch and I love it.  24 ports, 48 
gig/second backplane, it's nice.

I have not benchmarked it per se, but I know that when I moved from the 
10/100 to the 10/100/1000 I said "holy &$ <at> %!" the first time I copied 
ISOs across the network.

Also, my kickstarts are waaaaay faster now.

TC

Gmane