After more than 12 years working with computers, I am still way behind when it comes to networking, so please bear with me :)

As of this Christmas, the number of computers in my home has increased and it's well about time to upgrade the current network hardware in order to offer LAN connection to all computers.

Trying to find a cheap solution, A close friend offered me a great deal on a "enterprise-class" Switch from HP (more LAN ports than I would ever need), at the same price as what a brand new Netgear or D-link Switch with 6/8 ports would cost me in retail.

Would it be common sense to get this one and start using it immediately and never again have to worry about running out of LAN connections, or am I taking on a bigger bite than what I could chew?

HP procurve Switch

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Looks like a ProCurve 2524, just like the one sitting in my basement right now. – Chris S Jan 3 '11 at 1:11
Yep it is. Does yours have a fan? – Industrial Jan 3 '11 at 9:01
If it does get loud just call HP and tell them one of the fans is "failing". All their procurve stuff has a lifetime warranty so its never an issue to get it swapped. – ErnieTheGeek Jan 4 '11 at 3:06
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@Industrial, yep, has a fan, it's definitely makes noise, but I can't hear it from the next room over. @ErnieTheGeek, the warranty only applies if the equipment has only been sold through an official/authorized reseller or consumer-to-consumer. If you buy it from a non-authorized reseller the warranty is void (though HP would have to figure this out somehow). HP has always been extremely good with honoring their warranties for me. – Chris S Jan 4 '11 at 3:15
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@Industrial, mine is no louder than your average computer. Different models have different fans, they're not all the same at all. The 25xx series have somewhat quiet fans, they also run quite well with the fan unplugged (as someone noted below), though that probably voids the warranty. We have some 18xx series here in a server rack that you absolutely can't hear over the servers. Some models would indeed put JFK International to shame (we also have some Cisco 3750s in the office, they must be jet powered). – Chris S Jan 4 '11 at 17:50
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6 Answers

up vote 12 down vote accepted

I'd be concerned about the power consumption, noise, electromagnetic interference (EMI) and cooling requirements.

While they're robust and would (probably) provide you with more connections that you'll ever need, they're designed to sit in server rooms or cabinets. This means that they'll (potentially) be noisier than one designed for home use, for example.

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+1 Devices whose noise is safely tucked away in a server room or rack closet at the office can be a terribly annoying beast in a home. In addition to physical noise and power consumption, I think that EMI may be something to consider, if it might be stored near other devices not intended to be in proximity to something not meant for home use. – Andrew Barber Jan 2 '11 at 22:22
@Andrew - Good point on the electromagnetic interference. I'll add that into the answer. – ChrisF Jan 2 '11 at 22:23
@ChrisF: About the EMI, do you have any personal experiences about this? – Industrial Jan 2 '11 at 22:44
@Industrial - sorry no, but there will be stricter rules about the EMI a home appliance can give off. – ChrisF Jan 2 '11 at 22:47
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At the centre of my home network is a Cisco 2950. It's been modified, and the fans have been slowed down, so it's not so very very loud. – Tom O'Connor Jan 3 '11 at 0:52
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It is just a switch. Power it up, put all the ports on a single vLAN (which is probably the default config anyway) and plug in your machines. Just keep in mind that switch will make more noise than a home switch and will draw more power / give off more heat.

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+1, All the switches in the home networks I run (family sysadmin) are HP ProCurve and I wouldn't have it any other way. – Chris S Jan 3 '11 at 1:10
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I just wanted to mention one problem that I've seen when using a managed switch in a home environment. It's a problem that can be avoided if the switch is configured appropriately.

The default configuration should work for most home environments. But many managed switches have STP enabled by default which can cause some network connectivity with some devices. I've personally seen this issue with my XBox 360 and my DirectTV HD DVR. The solution is either disabling STP globally on the switch or enabling "portfast" or "fastlink" on the ports in question. Portfast and fastlink are just two names for the same thing and I'm not sure what HP calls it. Either of these solutions will be safe to use on a home network that you've described.

I even wrote a blog post about this a couple months back. So if you want more information on what STP is and how portfast/fastlink solves the problem then have a look at that post.

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If I recall correctly HP defaults portfast on for all ports. Probably not a good idea, but very convenient. – mfarver Jan 4 '11 at 2:18
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A switch is a switch. The enterprise class ones are that way because they have lots more features, like vlan, remote management, individual port configuration, remote monitoring (SNMP). But the core functionality remains the same, to get packets from one port to another. If your friend supplies it with an "out of box" configuration, it'll behave practically the same as the dlink one you can buy for retail. It'll be better at it, faster at it, and a little noisier too (remember enterprise class switches usually have control boards, with processors that require cooling, and as such, fans).

Do I think you'd be biting off more than you can handled? I doubt it, basic configuration on these bigger switches is usually enough for most cases. If you want to start getting a little more technical, like splitting the kids off on their own private network (vlan), then you might consider reading the manual, and brushing up on some basics of networking, otherwise you should be fine.

Just remember when these things ship from factory, they're just basic layer 2 switches, the advanced stuff you usually have to configure/enable.

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I can't comment so I have to put an answer, but assuming that your getting a HP procurve(from the picture) some do not have fans, but you need the model number to be sure...

EDIT

The procurve 2524 do have Fans , but I have heard that mileage varies on the switch , some being quite loud and some nearly silent

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I have a ProCurve 2650 and the fan is LOUD—or at least it was once upon a time. I popped the cover off and unplugged the fan connector over 2 years ago.

It complains about the fan failure, but no temperature-related warnings or errors:

hpicfSensorWarnings.1 = 0
hpicfSensorWarnings.2 = 0
hpicfSensorWarnings.3 = 0
hpicfSensorWarnings.4 = 0
hpicfSensorFailures.1 = 8267
hpicfSensorFailures.2 = 0
hpicfSensorFailures.3 = 0
hpicfSensorFailures.4 = 0
hpicfSensorDescr.1 = Fan Sensor
hpicfSensorDescr.2 = Power Supply Sensor
hpicfSensorDescr.3 = Redundant Power Supply Sensor
hpicfSensorDescr.4 = Over-temperature Sensor
...
Up Time            : 233 days

By now, I've gotten used to the blinking orange LED.

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Hi Eater - how does the environment look where it's placed? Rack mounted? Home? – Industrial Jan 4 '11 at 18:10
It's in my house which I keep at 72°-78°F depending on the season. It's screwed to the wall above the dryer, so I imagine it gets a bit warmer than that from time to time. – eater Jan 4 '11 at 20:48
Is it possible to check out internal temperaturer of the Switch? – Industrial Jan 6 '11 at 22:59
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If there's a way to tell from SNMP or CLI, I can't find it. The hottest point on the outside of the chassis is about 80°F at the moment. – eater Jan 7 '11 at 0:09
Thanks for your help! – Industrial Jan 8 '11 at 10:38
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