Unmanaged to Managed networks

[cogrady84]

I think the cost and maintenance overheads far outweighs the benefits of putting a UPS on an edge device like a switch. The main purpose of UPS to my mind is to be able to safely shut down the device rather than trying to keep it going until power is restored. How do you assess what size UPS you need for a switch? How long do you want it to run for? I have over 40 cabs and they are all connected to rings that supply PCs in rooms and offices so if the power goes down then so do the PCs!

 

The main purpose of a UPS to my mind would be providing clean, uninterrupted power to expensive hardware. You don't want a brownout or a surge killing things... clean shutdown and uptime is secondary.

 

I have an unmanaged UPS connected to each of my switch stacks, the aim isnt to provide uptime, just to ensure no failures occur due to a power problem that is out of my control.

Edited June 18, 2013 by cogrady84

[Heebeejeebee]

If any of you are using VoIP I'd *HIGHLY* recommend putting your IP phones on a separate VLAN!

 

... and QOS it to the max

 

HBJB

[mpe]

Why wouldn't you?

 

Well, can't say I can answer that positively. You don't have a UPS on each and every client or other device hanging off the switch, so keeping the switch up surely would serve no purpose? Unless of course it's a netgear or belkin switch and the idea of "turning off" is likely to brick it.

 

Plenty of clients do in effect have a built in UPS. e.g. laptops and tablets. The other obvious reason would be if it is a PoE switch.

[mpe]

The main purpose of a UPS to my mind would be providing clean, uninterrupted power to expensive hardware. You don't want a brownout or a surge killing things... clean shutdown and uptime is secondary.

 

A very short interruption can cause things to reboot, even hang. Also switches can take longer to reboot than PCs. Teacher's tend to moan more in situations where the network fails due to a power failure they didn't see or "It's still not working even though the power's back on!"

[Jamo]

Its cost vs risk. how often does it happen? How much does it cost?

 

Are you prepared to spend x on the risk y of this happening. In my opinion no.

 

Risk is extremely low, cost is disproportionately high. I don't think its a bad idea, just an expensive one!