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[address-policy-wg] Re: [ipv6-wg] Re: Andre's guide to fix IPv6

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Masataka Ohta mohta at necom830.hpcl.titech.ac.jp
Mon Dec 5 14:33:32 CET 2005

Kurt Erik Lindqvist wrote:

> So AFAIK the state of the art routers does 40G line-rate deep-packet  
> inspection with any pattern matching.

Once upon a time, there are people who thought 45Mbps were fast.

> So remind me again what the  
> problem is? Price? Sure, that is a question of demand and volume  
> production...

Terabit routers and corresponding bandwidth consumption.

Recent findings on the amount of router buffers made terabit electrical
routers much less expensive and terabit optical routers, which may be
even less expensive than electrical ones, viable.

> When MPLS was new I remember being told by vendors that it was the  only 
> way we could forward IPv4 at 10G line-rate. Go figure.

When I proposed MPLS, it was over ATM and I already noticed and warned
that MPLS (over ATM) inherently is about 10 times slower than IP routers
and that MPLS over Ethernet is no better than IP routers.

						Masataka Ohta

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