[Beowulf] good 24 port gige switch
Gerry Creager N5JXS
gerry.creager at tamu.edu
Fri Mar 5 23:41:07 EST 2004
1. It's been arough week.
2. I've got some specific opinions about 3Com hardware these days.
I just ordered a 16 node cluster. I'm using the Foundry EdgeIron 24G as
the basic switch. More than adequate backplane, pretty good small and
large packet performance as tested with an Anritsu MD1230. Cost is
expected to be about $3000, for the 24 port model. I'm getting 2, and
have dual nics on the nodes, for some playing with channel bonding, and
so that I've got a failover hot spare if/when one dies. Remember:
Murphy was an optimist.
For the record I don't expect the EdgeIron to die, but conversely
(perversely?) I expect any and all network devices to die at the least
I didn't even consider 3Com. Didn't test it. The 3Com "gigabit"
hardware I've seen recently in the LAN-space was usually capable of gig
uplinks, but had trouble with congestion when gig and 100BaseT were
mixed on the switch.
HP had been OEM'ing Foundry. I'm not sure if that's still the case or
if they went recently to someone else; my Foundry rep won't say, and I
don't have a close HP rep.
We have programmatically stayed away from Asante in our LAN operations
here. That translates to no experience an dno contacts. Sorry.
Cluster should be in within a month, and so should the switches. I'll
do some latency runs and report objective data.
Russell Nordquist wrote:
> Does anyone have a recommendation for a good 24 port gige switch for
> clustering? I know this issue has been discussed, but I didn't find any
> actual manufacturer/models people like. Were not really looking at the
> very high end models from Cisco, but I am wary of the many low end
> switches on the market with regard to bisectional bandwidth issues.
> Has anyone tested/used the HP, Asante, Foundry, 3com, or Extreme switches
> and found one to be better than the other. There are a bunch of 24 port
> gige switches for <$2000, but are they any good? are some better than
> others (likely so i'd guess)?
> thanks and have a good weekend.
> - - - - - - - - - - - -
> Russell Nordquist
> UNIX Systems Administrator
> Geophysical Sciences Computing
> NSIT, University of Chicago
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Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Office: 903A Eller Bldg, TAMU, College Station, TX 77843
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