[c-nsp] electric consumption

Fabiano de Oliveira fabiano.oliveira at gmail.com
Thu Feb 1 21:47:37 EST 2007


For GSR 12000 you can use Sh gsr pow
requires ios 12.0(31)

On 2/1/07, Justin Shore <justin at justinshore.com> wrote:
> Ian,
>
> I would find this to be of great interest.  It would be nice to have a
> single concise (or not so concise) location for all power-related specs
> across the entire Cisco product line for both AC and DC.  I'm moving an
> ISP to a different location in a building in the very near future.  I'm
> dumping all our remaining AC PSUs (all that I technically can) and
> switching to DC.  I have found that the product data sheets often don't
> have this data or the data is obscure and hard to find.  I often have to
> refer to install guides to find this info.  In many cases the data
> sheet, install guide, and the sticker on the PSU don't agree on the max
> consumption.  I would love to have a complete power guide for all of
> Cisco's products.  It would also be helpful to know the average load so
> that I have a feel for what I can get by with temporarily in a pinch.
>
> On a slightly different topic I'd like to see Cisco compose a Power Best
> Practices document.  I'd like to have something to fall back on when I
> tell a customer to use 220v on their 6500 even though they can squeak by
> with the quad-110v plugs based on their immediate load.  I'd like to be
> able to graphically show a customer why a RPS isn't the silver bullet
> they think it is.  I'd like to be able to show a enterprise customer why
> they need per-row power distribution cabinets instead of attempting to
> pull individual drops from a standard wall-mount panel.  Best practice
> documentation on power redundancy for large chassis (do we really need
> A, B, and C power sources for a PWR-4000DC on a 7600?).  There are a
> plethora of power documentation that Cisco could put together that would
> greatly benefit all of us.  So, could you have that ready next week?  :-)
>
> Thanks
>  Justin
>
>
> Ian Cox wrote:
> > At 01:28 PM 2/1/2007 +0000, david.ponsdesserre at uk.bnpparibas.com wrote:
> >
> >> People .
> >>
> >> Is there any specific command to check how much real power a cisco box is
> >> "pumping" ?
> >>
> >
> > No there is no command that will give you how much power the device
> > is consuming, the power numbers are the worst case consumption
> > numbers at 55C, so they can be much more then typical case. The only
> > way we have gotten the actual consumption is by using external power
> > meters. I know from one measurement on a product the Datasheet number
> > to the number measured at 25C was 2x higher, with line rate traffic.
> > The variation between Dtaasheet and measured is not normally that dramatic.
> >
> > Question to you? Would Cisco publishing average power numbers be of interest?
> >
> > Ian
> >
> >
> >> cheers
> >>
> >>
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