[161558] in North American Network Operators' Group

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Re: routing table go boom

daemon@ATHENA.MIT.EDU (Dobbins, Roland)
Tue Mar 19 19:49:07 2013

From: "Dobbins, Roland" <rdobbins@arbor.net>
To: "nanog@nanog.org Group" <nanog@nanog.org>
Date: Tue, 19 Mar 2013 23:48:46 +0000
In-Reply-To: <5148F377.90704@necom830.hpcl.titech.ac.jp>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Mar 20, 2013, at 6:23 AM, Masataka Ohta wrote:

> The problem of LISP is that it breaks the end to end principle to introdu=
ce intelligent intermediate entities of ITR and ETR.

It is always amusing to see people allude to the end-to-end principle to su=
pport their arguments, when in fact the end-to-end principle is either inap=
plicable to the topic at hand, or actually lends support to the opposite of=
 their arguments.

> Considering that the Internet is connectionless because all the routers h=
ave routing tables covering all the IP addresses in realtime, LISP won't be=
 operational unless most of routers in DFZ have full mapping table in realt=
ime.

LISP gains value as more of the edge is incorporated into the system.  This=
 doesn't mean it has no value during intermediate stages of deployment.

There are cogent arguments to be made against LISP and LISP-like systems.  =
But none of those arguments have been raised in this thread, so far.

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

	  Luck is the residue of opportunity and design.

		       -- John Milton



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