[67967] in North American Network Operators' Group
Re: Converged Networks Threat (Was: Level3 Outage)
daemon@ATHENA.MIT.EDU (Petri Helenius)
Thu Feb 26 14:33:35 2004
Date: Thu, 26 Feb 2004 21:32:07 +0200
From: Petri Helenius <pete@he.iki.fi>
To: vijay gill <vgill@vijaygill.com>
Cc: David Barak <thegameiam@yahoo.com>, Michael.Dillon@radianz.com,
nanog@merit.edu
In-Reply-To: <20040226181158.GB12758@vijaygill.com>
Errors-To: owner-nanog-outgoing@merit.edu
vijay gill wrote:
>
>CEF was designed to support offloading the RP.
>
>
>
Not really. There existed distributed fastswitching before DCEF came
along. It might still exist. CEF was developed to address the issue of
route cache insertion and purging. The unneccessarily painful 60 second
interval new destination stall was widely documented before CEF got
widespread use. The "fast switching" approach was also particularly
painful when DDOS attacks occurred.
Pete
