[Nsi-wg] Fwd: Thoughts on a basic topology model for NSI

[Joan A. Garcia-Espin]

Hi all,

I'm also following the conversation and add one to Radek's request: is  
this info (or part of it) public Jeroen?
I would be highly interested.

Regards,
--
Joan A. García-Espín
CTX, i2CAT Foundation





El 10/02/2010, a las 9:55, Radek Krzywania escribió:

> Hi Jeroen,
> Is there any way to see the results of your simulations and the  
> chapter you wrote on aggregation? I would like to take a closer look  
> on that issue, as this issue is something I was investigating some  
> time ago and could not find a strong reason to claim one to be  
> better than the other.
>
> Best regards
> Radek
>
> ________________________________________________________________________
> Radoslaw Krzywania                      Network Research and  
> Development
>                                           Poznan Supercomputing and
> radek.krzywania at man.poznan.pl                   Networking Center
> +48 61 858 20 28                             http://www.man.poznan.pl
> ________________________________________________________________________
>
>> -----Original Message-----
>> From: nsi-wg-bounces at ogf.org [mailto:nsi-wg-bounces at ogf.org] On  
>> Behalf
>> Of Jeroen van der Ham
>> Sent: Tuesday, February 09, 2010 6:23 PM
>> To: John MacAuley
>> Cc: nsi-wg at ogf.org
>> Subject: Re: [Nsi-wg] Fwd: Thoughts on a basic topology model for NSI
>>
>> On 09/02/2010 07:37, John MacAuley wrote:
>>> 1. Aggregation and summarization.
>>
>> I've done some simulations, analysis and have written a chapter about
>> this in my thesis. My results show that aggregating a domain to a
>> single
>> node performs very badly compared to an aggregation model where you
>> advertise a full mesh between edge nodes.
>> I would also argue that the advantages of simplifying the internal
>> domain do not balance the disadvantages you have in false positives  
>> in
>> inter-domain pathfinding.
>>
>> However, these simulations have only used a single layer. We're
>> currently looking at pathfinding in multi-layer networks, and we're
>> thinking about how to create aggregations for multiple layers. This  
>> is
>> a
>> hard problem.
>>
>> Given the fact that current domains are not that complicated, and we
>> have a very open culture in regards to information exchange, I would
>> suggest that we leave the problem of aggregation open for now and  
>> just
>> use full topologies.
>>
>> Jeroen.
>> _______________________________________________
>> nsi-wg mailing list
>> nsi-wg at ogf.org
>> http://www.ogf.org/mailman/listinfo/nsi-wg
>
> _______________________________________________
> nsi-wg mailing list
> nsi-wg at ogf.org
> http://www.ogf.org/mailman/listinfo/nsi-wg