[Beowulf] Gigabit switch recommendations
jlb17 at duke.edu
Thu Apr 6 09:06:06 PDT 2006
On Thu, 30 Mar 2006 at 9:33am, Joshua Baker-LePain wrote
> On Thu, 30 Mar 2006 at 9:04am, Tim Mattox wrote
>> FYI - here are some links to a variety of 48-port commodity GigE switches,
>> that may be worth looking at (but as another poster indicated, these
>> might actually all be the same switch built by an OEM and just rebadged.
>> One can only really tell by opening one up and looking at the PCB and chips
>> that are inside.):
>> SMC8648T TigerSwitch
> The SMC8748L2 I went with is here:
> It's cheaper than the 8648T while apparently newer and with some "better"
> specs. As I mentioned before, I'm decidedly skeptical and intend to test it
> hard while I'm still well within the return period.
I've got my new switch in hand and I've done some preliminary testing. So
far, so good. Total bandwidth between 2 hosts connected to the switch was
quite comparable to that of the hosts being directly connected for just
about all the MTUs I tested (see
<http://www.duke.edu/~jlb17/tg3comp.png>). The hosts are centos 4.3 using
onboard BCM5704 NICs (tg3 driver), and I tested with netperf.
Now I just need to get it hooked up to more hosts and really have at it.
Department of Biomedical Engineering
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