Re: [RAM] Number of DFZ routers

Chris L Morrow writes:
> On Tue, 29 May 2007, Simon Leinen wrote:
>> I think Robin's question was about *operational* routers, i.e.,
>> configuration of routers in actual use in the Internet, not about
>> hardware/software limits:

> there was a reason I quoted the idb limits... on a SP network more
> ports (logical and physical) you can stick in a rack the better you
> are. SP's are always driving for more ports in less
> face-plate-space. The IDB limit is probably a good start for today,
> and tomorrow I'd expect SP's to drive that higher...

Sure, we all LIKE to have large routers with many ports, preferably
each generating LOT$ of revenue.  (And hopefully even *our* tiny
routers will by upgraded over time to break Cisco's IDB limits :-)

But it's slightly unnerving to me that nobody comes up with actual
numbers, even rough numbers, of what they actually have in the field.
Individual SPs may hide behind "company secrets", but maybe one could
run guesstimates from vendor and service provider yearly reports.

So Tony Li tells us a CRS-1 could support a million DS3 interfaces.
But how many DS3 interfaces - or any kind of interfaces - were sold
for CRS-1s? Let's try to put some real-world data into the discussion.
What I'm hearing so far reminds me too much of "traffic doubles every
100 days!".  Not good for basing rational decisions on if you ask me.
-- 
Simon.

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