[164058] in North American Network Operators' Group

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Re: PDU recommendations

daemon@ATHENA.MIT.EDU (Alain Hebert)
Mon Jun 24 15:01:35 2013

Date: Mon, 24 Jun 2013 15:01:25 -0400
From: Alain Hebert <ahebert@pubnix.net>
To: nanog@nanog.org
In-Reply-To: <601172DB-AB2D-456C-B929-8EE751551F85@gmail.com>
Reply-To: ahebert@pubnix.net
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

    Hi,

    Yes.

    They are good.

    Nothing I would deploy in a large data center but for a few racks
they are perfect.

    Beware that they are not built to be connected straight to the
internet =D.

    The management module can reset depending on packet payload and
overall traffic.  They should always be behind some sort of firewall
with rules limiting its access.

    PS: Ours are a few years old, I'm sure APC added some sort of
security since then, you may want to look 'em up.

    Happy 24th to all.

-----
Alain Hebert                                ahebert@pubnix.net   
PubNIX Inc.        
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911  http://www.pubnix.net    Fax: 514-990-9443

On 06/24/13 14:41, Ryan - Lists wrote:
> Does anyone on list have experience with the APC AP7920 switched rack PDU, or any of the horizontal rack mountables with management? We're looking at these for our remote sites.
>
> Sent from my iPhone
>
> On Jun 24, 2013, at 6:10 AM, Måns Nilsson <mansaxel@besserwisser.org> wrote:
>
>> Subject: Re: PDU recommendations Date: Sun, Jun 23, 2013 at 09:32:00PM -0400 Quoting shawn wilson (ag4ve.us@gmail.com):
>>> So, that's not a very good endorsement :)
>>>
>>> Idk why you'd use a fuse in a PDU.
>> MCB units age.  Especially with vibration.  A 10A MCB becomes a 9A MCB after some miles. 
>>
>> Fuses don't. 
>>
>> MCB units are good at protecting people since they trip quickly and aggressively. 
>>
>> Fuses tend to linger before blowing, and thus are comparatively bad at protecting
>> people (longer shock) but better at protecting infrastructure (surge
>> and switch-on-transient resistance).
>>
>> -- 
>> Måns Nilsson     primary/secondary/besserwisser/machina
>> MN-1334-RIPE                             +46 705 989668
>> There's a little picture of ED MCMAHON doing BAD THINGS to JOAN RIVERS
>> in a $200,000 MALIBU BEACH HOUSE!!
>
>



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