Re: [Ospf-manet] MPR-OSPF GTNetS simulations report

Richard Ogier <rich.ogier@earthlink.net> Wed, 10 January 2007 17:59 UTC

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Date: Wed, 10 Jan 2007 09:59:08 -0800
From: Richard Ogier <rich.ogier@earthlink.net>
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To: Emmanuel Baccelli <Emmanuel.Baccelli@inria.fr>
Subject: Re: [Ospf-manet] MPR-OSPF GTNetS simulations report
References: <45A43BD4.5090609@inria.fr>
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I wonder how your results would change with the following two
bugs corrected:

1. An LSA was originated only when a neighbor goes to/from Full
(same as for OR), but with MPR-based LSA reduction, an LSA should be
originated whenever the set of MPRs or the set of MPR selectors
changes.

2. In the SPF calculation, the backlink check was not done for
MPR-based LSA reduction.  The backlink must always be checked
for compatibility with OSPFv3 (i.e., the link from node w back to
node v must exist).

With the first bug fixed, I would expect more LSA overhead.
With the second bug fixed, I noticed that delivery ratio is
significantly lower.  However, fixing the first bug
might help increase the delivery ratio.

Anyway, at some point in the future, I expect that the proposed
OSPF extensions will be compared in a fair manner.

Richard



Emmanuel Baccelli wrote:

> Dear all,
>
> here is a report containing the GTNetS simulation results for the 
> MPR-OSPF code : 
> http://self.d.free.fr/MPR-OSPF/mpr-ospf-simulations-report.pdf
>
> Regards,
> Emmanuel
>
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> Ospf-manet mailing list
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>



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