[c-nsp] OT - BGP Analysis

Tue Oct 17 06:06:24 EDT 2006

Perhaps http://nms.lcs.mit.edu/bgp/rcc/ could be of use

--
Rikard

On Tue, 17 Oct 2006, Sam Stickland wrote:

> Paul Stewart wrote:
>> Hi there... sorry for the OT post... but figured that there would a
>> number of people on this list with ideas..;)
>>
>> Does anyone know of any tools that would allow us to analyse our BGP
>> traffic to answer the question of "if we switched to Provider X and we
>> kept Provider Y & Z, X Mb/s of traffic would flow via Provider X" ??
>>
>>
> Maybe you seek C-BGP? http://cbgp.info.ucl.ac.be/
>
> "/C-BGP/ is an efficient BGP routing solver. Its aim is to compute the
> outcome of the BGP decision process in network topologies composed of
> several routers. The BGP model implemented in /C-BGP/ is not hindered by
> the transmission of BGP messages over simulated TCP connections as in
> /SSFNet/ or /J-Sim/. The solver supports the complete BGP decision
> process, versatile import and export filters, route-reflection, and
> experimental attributes such as redistribution communities. It is easily
> configurable through a CISCO-like command-line interface. /C-BGP/ does
> not model session establishment and timers (MRAI, dampening, ...). A
> paper describing parts of /C-BGP/ has been published in IEEE Network
> magazine: "Modeling the Routing of an Autonomous System with C-BGP"
> <http://cbgp.info.ucl.ac.be/#paper_cbgp> (please refer to this paper
> when you cite /C-BGP/).
>
> /C-BGP/ can be used to experiment with modified decision processes and
> additional BGP attributes. It can also be used to evaluate the impact of
> input/output policies on the routing tables of other ASes. Thanks to its
> efficiency, it can be used with large topologies with sizes of the same
> order of magnitude than the Internet. For the moment, we mainly use it
> to study interdomain traffic engineering techniques and to model the
> network of ISPs."
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