nanog mailing list archives

Re: PC Routers (was Re: /24s run amuck)


From: Vadim Antonov <avg () kotovnik com>
Date: Wed, 14 Jan 2004 18:28:11 -0800 (PST)


On Wed, 14 Jan 2004 alex () pilosoft com wrote:

Getting to 1mpps on a single router today will probably be hard. However,
I've been considering implementing a "clustered router" architecture,
should scale pps more or less linearly based on number of "PCs" or
"routing nodes" involved. I'm not sure if discussion of that is on-topic
here, so maybe better to take it offline.

This is exactly what Pluris PC-based proof-of-concept prototype did in 97.
PCs were single-board 133MHz P-IIs, running custom forwarding code on bare
metal, yielding about 120kpps per board, or 1.9Mpps per cage.

In the production box CPU-based forwarding was replaced with ASICs, 1Gbps
hybrid optical/electrical butterfly/hypercube interconnect was replaced
with 12Gbps optical hypercube interconnect, otherwise architecture was
unchanged.  That was a total overkill which was one of the reasons the 
company went down.

--vadim


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