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Subject: Re: [OMPI users] Slightly off topic: Ethernet and InfiniBand speedevolution
From: Scott Atchley (atchley_at_[hidden])
Date: 2009-05-05 17:30:53

On May 5, 2009, at 2:47 PM, Jeff Squyres wrote:

> On May 5, 2009, at 1:59 PM, Robert Kubrick wrote:
>> I am preparing a presentation where I will discuss commodity
>> interconnects and the evolution of Ethernet and Infiniband NICs. The
>> idea is to show the advance in network interfaces speed over time on
>> a chart. So far I have collected the following *approximative* data
>> for Ethernet:
>> 1990 --> 100Mbits/s
>> 2000 --> 1Gbits/s
>> 2010 --> 10Gbits/s
>> 2020 --> 100Gbits/s
> FWIW, your ethernet timeline might be a little too long. I could
> swear I read an internet trade rag recently that was anticipating
> pre-standard 40Gbps ethernet equipment by the end of 2010 (similar
> to how you can buy pre-standard 802.11n equipment from a variety of
> vendors now). My *guess* is that 100Gbps will follow much less than
> 10 years later because there are already carriers today who need/
> want/would buy it.

Initially, 100 Gb/s Ethernet will be for switch-to-switch links and
will be long before 2020.

The CPU roadmap to handle 100 Gb/s (via PCI-Express, QPI, HT, etc.)
may dictate when NICs will support that rate.