[74996] in North American Network Operators' Group
Re: Energy consumption vs % utilization?
daemon@ATHENA.MIT.EDU (Nik Hug)
Wed Oct 27 05:55:31 2004
From: "Nik Hug" <lists.nik@nts.ch>
To: <nanog@merit.edu>
Date: Wed, 27 Oct 2004 11:55:03 +0200
Errors-To: owner-nanog-outgoing@merit.edu
From: "Andre Oppermann"
> From running a Colo in a place with ridiculus high electricity engery
> costs (Zurich/Switzerland) I can tell you that the energy consuption
> of routers/telco (70%) and servers (30%) changes changes significantly
> throughout the day. It pretty much follows the traffic graph. There
> is a solid base load just because the stuff is powered up and from there
> it goes up as much as 20-30% depending on the routing/computing load of
> the boxes. To simplify things you can say that per packet you have that
> many "mWh" (milli-Watt-hours) per packet switched/routed or http requests
> answered over the base load. I haven't tried to calulate how much energy
> routing a packet on a Cisco 12k or Juniper M40 cost though. Would be
> very interesting if someone (student) could do that calculation.
the same variation between night and day here - but from our point of view
the consumption of the air-pack's are making the differences during the day
... traffic-graph and outside temperature-graphs show more or less the same
up and down. Would we interesting to have separate values for the power
consumption between server-equipment and air-co ...
Greetings
Nik
