[c-nsp] CRS-1 doesn't share power load.

[Michael Loftis]

On Sunday, March 16, 2014, PlaWanSai RMUTT CPE IX <pws_admin at thaicpe.com>
wrote:

> Why doesn't CRS-1 share power load?
>
>
>
> RP/0/RP0/CPU0:cm-1(admin)#sho env pow
>
>                 Power Supply        Voltage        Current
>
>                 DC-PEM DC-PEM        (V)              (A)
>
> Zone 1:        [A], [B]        53.005, 54.083   3.238, 10.968
>
> Zone 2:        [A], [B]        52.614, 53.887   3.133, 10.655
>
> Zone 3:        [A], [B]        53.397, 53.789   2.924, 10.341
>
>
>
> Total Current:   41.259 A
>
> Total Power  : 2216.183 W
>
>
>
> RP/0/RP0/CPU0:cm-1(admin)#
>
>
>
> From the output, why does source A used 3 A while source B used 10 A?


It is load sharing but your B voltage is basically a full volt higher than
your A - load share on those seems to be basically via diodes so the
slightly higher voltage source will get a larger share of the load.

You should always provision as if 100% of the load will be on one feed or
the other. It's primarily there for redundancy not load share.


>
>
>
> Thank you very much.
>
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net <javascript:;>
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>


-- 

"Genius might be described as a supreme capacity for getting its possessors
into trouble of all kinds."
-- Samuel Butler