[103534] in North American Network Operators' Group
Re: Flow Based Routing/Switching (Was: "Does TCP Need an Overhaul?" (internetevolution, via slashdot))
daemon@ATHENA.MIT.EDU (Roland Dobbins)
Sat Apr 5 06:32:01 2008
From: Roland Dobbins <rdobbins@cisco.com>
To: NANOG <nanog@merit.edu>
In-Reply-To: <47F75161.1040401@spaghetti.zurich.ibm.com>
Date: Sat, 5 Apr 2008 17:28:04 +0700
Errors-To: owner-nanog@merit.edu
On Apr 5, 2008, at 5:16 PM, Jeroen Massar wrote:
> The flows are in those boxes, but only for stats purposes exported
> with NetFlow/IPFIX/sFlow/etc. Apparently it was not as fast as they
> liked it to be
This is essentially correct. NetFlow was originally intended as a
switching mechanism, but then it became apparent that the value of the
information in the cache and the ability to export it as telemetry
were of more value, as there were other, more efficient methods of
moving the packets around.
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Roland Dobbins <rdobbins@cisco.com> // +66.83.266.6344 mobile
History is a great teacher, but it also lies with impunity.
-- John Robb
