Extreme BlackDiamond

Tom (UnitedLayer) tom at unitedlayer.com
Mon Oct 13 06:06:22 UTC 2003


On Mon, 13 Oct 2003, Mikael Abrahamsson wrote:
> I can understand how a virus like Welchia can affect a flow-based
> architecture like Extremes. I was under the impression that CEF enabled
> Cisco gear wouldnt have this problem, but Cisco has instructions on their
> webpage on how deal with it and cites CPU usage as the reason. With CEF I
> thought the CPU wasn't involved? CEF is perhaps differently implemented on
> different plattforms?

I think CEF in HW is the key, ASIC based and not Flow based.
I'm not all-knowlegable on which platforms do this, but the 7500, 12000,
2948G-L3, 4908 have it.




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