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Re: [lisp] Questions about draft-saucez-lisp-itr-graceful-03

Dino Farinacci <farinacci@gmail.com> Wed, 19 February 2014 17:18 UTC

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From: Dino Farinacci <farinacci@gmail.com>
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Date: Wed, 19 Feb 2014 09:18:38 -0800
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References: <20140218144825842648.087ffc67@sniff.de> <5689A37C-B58A-4144-AB01-A61DFCE1B999@gmail.com> <A5E2D567-7C8D-4024-AE61-CFDA9400123A@inria.fr> <A948F13B-023B-43FB-92EC-D4DA6A832404@gmail.com> <D232D17D-49D4-484C-96AB-5C5D48291AF9@inria.fr>
To: Damien Saucez <damien.saucez@inria.fr>
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Cc: Clarence Filsfils <cf@cisco.com>, Luigi Iannone <luigi.iannone@telecom-paristech.fr>, LISP mailing list list <lisp@ietf.org>
Subject: Re: [lisp] Questions about draft-saucez-lisp-itr-graceful-03
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> 1.  if you store the cache for next reboot, you will not experience
> the miss storm when the traffic will come back to you.
> 
> 2.  if you shutdown an ITR, packets are forwarded to another ITR and
> there is a miss storm as long as the prefixes in the backup ITR do not
> cover those that where in the "down" ITR.

LISP promotes multi-homing for inbound traffic to a LISP site, as well as outbound packets from a LISP site. You deploy LISP so you can get active-active multihoming.

So this storm will typically be academic.

Dino

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