Chris McEniry <[email protected]> writes: > Anyone have a recommendation - manufacturer and class - for a small > datacenter (couple dozen servers, 100Mb of internet traffic) switch > infrastructure? > > I'm biased for Cisco because of history, but I'm now looking at a > startup's budget. We have a bsd firewall in front of everything, and > the switch infrastructure is just doing layer 2. We currently have some > Procurves in place, but they're showing drops (DiscardIn mostly - > usually < 1% but spiked up to 10% at one point) even though they're not > even coming close to the rated specs for traffic. And it's just drops - > I got gooseeggs for other error counters. Am I naive to think that the > they should be showing clean (systems are showing clean)? or am I just > using the wrong tool for the job?
I had a similar problem with my own procurves not too long ago. After pulling out a bunch of hair and cursing my large layer 2 (I have 3 racks on one flat vlan) I figured out the problem was that I'm a moron, and I had assigned two virtual machines the same MAC address. (we discovered this because the problem got worse when one of the systems in question started getting a lot of traffic, and it brought the network to it's knees... but we had symptoms as you describe, the mysterious <1% drops at the switch, for several months before, and after we sorted out the dupe MAC problem, that problem went away.) I don't know if that's your problem or not, but especially now that everyone and his brother is using virtualization, mac address conflicts are quite a bit more common than they used to be. -- Luke S. Crawford http://prgmr.com/xen/ - Hosting for the technically adept http://nostarch.com/xen.htm - We don't assume you are stupid. _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
