[63905] in North American Network Operators' Group
Re: Extreme BlackDiamond
daemon@ATHENA.MIT.EDU (Tom (UnitedLayer))
Mon Oct 13 02:06:59 2003
Date: Sun, 12 Oct 2003 23:06:22 -0700 (PDT)
From: "Tom (UnitedLayer)" <tom@unitedlayer.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: nanog@merit.edu
In-Reply-To: <Pine.LNX.4.44.0310130739140.6300-100000@uplift.swm.pp.se>
Errors-To: owner-nanog-outgoing@merit.edu
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.
