[88358] in North American Network Operators' Group
Re: Modelling a large ISP network with C-BGP
daemon@ATHENA.MIT.EDU (Alain Hebert)
Thu Feb 2 13:02:00 2006
Date: Thu, 02 Feb 2006 13:01:27 -0500
From: Alain Hebert <ahebert@pubnix.net>
Reply-To: ahebert@pubnix.net
Cc: nanog@nanog.org, routing-wg@ripe.net,
=?ISO-8859-1?Q?S=E9bastien_?= =?ISO-8859-1?Q?Tandel?= <standel@info.ucl.ac.be>,
Bruno Quoitin <bqu@info.ucl.ac.be>
In-Reply-To: <43E22D20.7020706@info.ucl.ac.be>
Errors-To: owner-nanog@merit.edu
I'm I alone to find this a bit spammy?
Olivier Bonaventure wrote:
>
> Dear All,
>
> C-BGP is an efficient and open-source simulation tool that allows to
> simulate the behavior of the intra- and interdomain routing protocols
> in large ISP networks. C-BGP is able to simulate networks with
> thousands of routers. A key feature ofco C-BGP compared to other
> simulators is that it is able to support the complex routing policies
> that are used by ISPs.
>
> Thanks to the support of France Telecom R&D, we have been able to use
> C-BGP to reproduce the behavior of BGP in a large Tier-1 ISP network.
> For this analysis, we have developped several tools to automatically
> convert the BGP configurations of Juniper (JUNOS) and Cisco (IOS)
> routers, the IGP topology and the BGP routes in the C-BGP format. With
> these tools, any network operator can easily build a C-BGP model of
> his/her network. With such a model, it is possible to perform
> different types of analysis on the ISP network, such as :
>
> - predicting the flow of the traffic through the network or
> determining the traffic matrix based on Netflow data (see article in
> January issue of ACM SIGCOMM Computer Communication Review)
> - predicting the impact of adding a new peering link on the BGP
> routes selected by the routers (see article in Nov/Dec issue of IEEE
> Network Magazine)
> - predicting the impact of link or router failures on the ISP network
>
> You can obtain C-BGP, the conversion tools and several papers
> describing the utilization of C-BGP to model an ISP network or compute
> traffic matrices from :
>
> http://cbgp.info.ucl.ac.be
>
> The website also contains several examples, such as a complete C-BGP
> model of the Abilene Network based on their publically available JUNOS
> configurations files.
>
> We believe that C-BGP could be very useful for ISPs willing to
> optimise the distribution and the selection of the BGP routes in their
> network. Comments, suggestions and questions from network operators
> are more than welcome.
>
> Best regards,
>
>
>
> Bruno Quoitin, Sebastien Tandel and Olivier Bonaventure
>
--
Alain Hebert ahebert@pubnix.net
PubNIX Inc.
P.O. Box 175 Beaconsfield, Quebec H9W 5T7
tel 514-990-5911 http://www.pubnix.net fax 514-990-9443
