[c-nsp] Nexus V1000 - Feedback?

Roland Dobbins rdobbins at arbor.net
Wed Jun 10 21:16:00 EDT 2009


On Jun 10, 2009, at 9:32 PM, Maxwell Reid wrote:

> you really only need specialized ASIC's as part of the forwarding  
> plane of high end routers.

When you're talking about DDoS, that's what's needed; general-purpose  
CPUs on boxes running many different VM/OS/app stacks, or things like  
ASAs don't cut it.

That's why you don't see stateful firewalling in front of major public- 
facing properties; not only is it useless by definition in such  
scenarios, in which every single incoming connection is unsolicited,  
but it's a DDoS chokepoint due to the state instantiated and the  
limited resources available.

-----------------------------------------------------------------------
Roland Dobbins <rdobbins at arbor.net> // <http://www.arbornetworks.com>

         Unfortunately, inefficiency scales really well.

		   -- Kevin Lawton



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