nanog mailing list archives

Re: /. Terabit Ethernet is Dead, for Now


From: Steve Meuse <smeuse () mara org>
Date: Thu, 27 Sep 2012 09:56:01 -0400

On Thu, Sep 27, 2012 at 9:41 AM, Mikael Abrahamsson <swmike () swm pp se>wrote:


I opposed 40GE, but since physics is a lot of the problem here, I think
400GE is favorable over 1TE. Already now we're sitting with platforms with
forwarding performance per slot that doesn't really match 100GE nicely,
imagine the equivalent problem for 1TE. By the time this is ready, will
platforms be at slightly over 1T per slot, perhaps it then makes more sense
to have 3x400GE instead of 1x1TE per slot.


1Tb/s per slot is a reality that will be here sooner than many might
realize.

I think the bonded vs. native argument can come down to optical bandwidth.
If you are limited to N number of wavelengths on a segment having faster
native interfaces becomes desirable (assuming similar optical bandwidth per
unit).

-Steve


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