The RETAIL stuff is low quality in my opinion. It locks up, fails, quits working, etc... way way way too often. But apparently you're talking about a higher grade line. I hope they come from different companies operating under the same brand.
As others have remarked this is from their "business line", and might be better than their normal consumer level stuff (which usually isn't so bad, as long as you don't push hard...).
3Com? My personal experience of their switches is "avoid at all cost", but that was a number of years ago.
Google doesn't seem find much either. Possibly an OEM, there are a couple of switches of this type that is sold by a large variety of different OEM's.
HP Procurve 2626 is an obvious alternative, it's a bit more expensive though but nowhere close to Cisco level. HP operates with a "lifetime warranty for original purchaser" on their switches, this includes advance replacement.
D-Link calls their warranty "limited lifetime warranty", it starts out the same but then they add a host of limitations which significantly reduces it (US only, power supply/fan 3 year, spare parts/spare kits
90 days, and everything expires 5 year after they've discontinued the product). They don't do advance replacement either, so you need to send in the unit, wait for them to fix and then send it back to you (sometimes means that you'll need to buy a replacement to use while claiming the warranty).
3Com seems to have similar warranty terms to D-Link, while Cisco apparently doesn't want to divulge them on their Web pages :-)
In article , Lucas Tam wrote: :And also, the DES-3526 is not a retail switch, it's part of DLink's :business offerings
Experiences differ. We had experience with a top of the line "business" switch from one of the "consumer" companies you list, and it was miserable... it worked superficially, but when we put it on the lab bench for testing and started trying to configure some of the basic features, the evidence we found was of significant errors at relatively low loads, and we weren't able to get it configured to test the main feature we had purchased for. It then cost me more time to go through and re-test and document the problems than we saved by not going with a higher end switch.
One of the other regulars here tested the same model line, loved it at first, and within a couple of months was loathing it.
As one of the posters said, it depends on the consequences of failures (and bugs and bad feature design and error rates). We have some very inexpensive switches within our LAN that I see no evidence of error with... but those are in tertiary roles, and I wouldn't use them for our wiring closets.