Green Networking: Parsing the Facts from the Marketing
This begs the question: how should network managers respond to such claims? If green networking is not desirable, then the answer is very short -- it is an irrelevant waste of everyone's time. So let us examine the more complicated scenario, where green networking is desirable.
If green networking is desirable, then surely the marketing points should go to those that are doing the most they can, or at least doing something other than what they would have done anyway?
A vendor simply going to the next smallest silicon process, in an orderly manner, is, I would argue, doing what they would have done anyway. So to call this "green" is to raise the question of what it means to be "green." On the other hand, an equipment vendor skipping a generation of silicon process, moving between silicon processes on an accelerated schedule, doing something about the fundamental power source, or power properties, has enough authenticity to pull off the green angle.
The goal of marketing is to sell, so whatever works is its own reward, and has merit with respect to that goal. However, sometimes marketing messages have to have a base of authenticity to work over the long run. Simply going to the next lower silicon process is always going to be authentic in the context of typical metrics such as price / performance and operating costs, and I have no argument with that. However, I think those people who really believe in green are not going to be so forgiving of "light green" marketing messages, they likely are going to want to see a tropical lush dark green message, or none at all.
It is a tricky issue. Obviously networking equipment becomes greener every year on a watts per bit basis, because equipment vendors ride a natural technology evolution curve. So there is a legitimate claim to "green." At the same time, how differentiating is it to be marketing a green message when an equipment vendor is simply riding the same technology curve as everyone else? Perhaps it could be argued that each subsequent generation of technology is enough to spur a new buying cycle simply on the basis of power and cooling savings?
What is your take? Will "green marketing" get the attention of network managers and will it make a difference to purchasing decisions? What does an equipment vendor have to do to look authentic with a "green" message?
Mark Seery has more than 25 years experience working in ICT including 10 years in network operations, 10 years in product management/marketing for networking equipment companies, and five years in market research and consulting. He is a guest columnist for GreenerComputing News, and he maintains a blog at interflect.com.
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Weeding through the "Green-wash"
Hi Mark,
You make some good points here. I think much of the gray areas around Green are due to it's very nebulous nature as a social and political term. Transitioning to more scientific concepts like energy efficiency and sustainability will help as a first step. At least efficiency is measurable (%).
In terms of the evolution of product design in networking there is a clear historical trend of improved electrical efficiency which has been mainly driven by physical space considerations. Ironically the dot com boom drove all vendors to be more power efficient resulting from the real estate considerations at the time.
Watts per bit has certainly improved and will continue to do so, observing the laws of physics of course. However, watts per bit is only so telling of actual efficiency which would be better expressed as power per work unit performed. Said another way, power per port to do what? This analysis can be very complex and in most cases people opt to look at power supply efficiency and extraneous feature set overhead. While not completely accurate they are at least telling.
A few ways (in my opinion) to determine if a networking vendor is serious about going "Green" is to look at the following:
1) Has the company invested in full time roles outside of marketing to make the platform changes necessary to deliver products that are more efficient (design and operation) than it's predecessor? Do the individuals who operate in these roles have experience in power and cooling?
2) What specific changes to products and architectures have been made outside of the normal evolution of design (for example; product airflow and I/O consolidation).
3) Is their messaging technically credible, (for example do you see images of racks in a meadow with butterflies happily perched) using terms like sustainability and energy efficiency.
4) Are they providing solutions that look past a single product? Can they help you improve your operative efficiency as well as your component efficiency?
5) Are they publishing the efficiency curves of their products?
6) Are they jumping on the Green bandwagon as a competitive differentiator (when no industry standards exist) or are they seeking to facilitate shared learning around an issue much larger than vendor differentiation?
These are just some top of mind thoughts I have on the topic. I will be the first to say that we all have a lot to learn on the topic and we really should be focused on metric and standards definition to measure and monitor power consumption via IP.
I believe that efficiency in IT in general is 80% process and 20% product. What I mean by that is that most major IT vendors buy their power supplies from the same suppliers and most of them purchase highly efficient supplies. Since supplies are the biggest power loss in a chassis they are indicative of box-level efficiency. It's the process of not decommissioning or even measuring asset utilization across data center systems that are most wasteful.
In closing, getting Green in IT can be very simple - don't plug your data center into coal and perform regular utilization audits.