Hi Ricardo, Basically I want to measure the Convergence times and routing table sizes. But I am not able to find a good topology of internet which I can utilize for my experimentations. I am looking at GT-ITM, BRITE and IGen but don't know what kind of abstraction they provide and if these topologies are feasible to test the above mentioned parameters. What challenges I can face if I want to measure all those parameters convergence times ,table sizes , update count, signal sizes etc. Regards Moazzam On Tue, Sep 2, 2008 at 1:35 PM, Ricardo Oliveira <rveloso@cs.ucla.edu>wrote:
Moazzam,
Do you have something specific in mind you want to measure? e.g. convergence times, table size, update count, etc? the scope of your study seems to broad as you describe it.. Cheers,
--Ricardo
On Sep 1, 2008, at 12:57 PM, Moazzam Khan wrote:
Thanks Stefan for your reply.
Basically the goal of this testing is to study the BGP scalability issues in the internet sometime in future lets say 10 years from now and try to find out what problems it could face . I am trying to use ns2 as my simulation environment.
Can you suggest how I can set up the envrionment for this kind of study and what parameters should I try to caputre.
Regards MAK
On Mon, Sep 1, 2008 at 3:51 PM, Fouant, Stefan <Stefan.Fouant@neustar.biz
wrote:
Topology and setup of these kinds of tests largely depend on whether you
are testing iBGP or eBGP. In my experience, eBGP testing is fairly straight forward as you are almost always testing reconvergence of the BGP next-hop. iBGP testing scenarios on the other hand can be quite a bit more complex as you may also be testing the reconvergence of the underlying IGP if the BGP next-hop remains unchanged. Can you describe your testing goals and environment in a bit more detail?
Stefan Fouant Principal Network Engineer NeuStar, Inc. - http://www.neustar.biz GPG Key ID: 0xB5E3803D
----- Original Message ----- From: Moazzam Khan <emoazzam@gmail.com> To: nanog@nanog.org <nanog@nanog.org> Sent: Mon Sep 01 15:37:19 2008 Subject: BGP Scalability Simulation
Hi
I am trying to simulate BGP for scalability testing. I have few queries.
1) What sort of topology I should try out ?
2) What parameters should I test?
I am trying to simulate it in ns-2 and i would appreciate reply from you guys.
Regards
MAK