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Re: BGP Scalability Simulation

  • From: David Andersen
  • Date: Tue Sep 02 10:48:31 2008

We have a similar analysis (which agrees with Vince Fuller's #s in a general sense) in the middle of a recent sigcomm paper:

http://www.aip-arch.net/

See the paper "Accountable Internet Protocol (AIP)".

I point it out mostly because the Fuller presentation said "kinda looks exponential"; we found that the scaling was 17% per year, which could be a bit more useful if you need to come up with #s for the years between when Fuller provides projections for.

-Dave

On Sep 2, 2008, at 8:41 AM, Brad Freeman wrote:

Vince Fuller has done some projections on what the the routing tables will
be like in the near future which would be useful for you, check out
http://www.ripe.net/ripe/meetings/ripe-53/presentations/rou-vf-sca.pdf


If you are looking at doing simulations of what it could be like, use
similar figures to his for IPv4 & IPv6 routing table size.

Regards

Bradley Freeman

2008/9/1 Moazzam Khan <[email protected]>

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 <[email protected]
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 <[email protected]> To: [email protected] <[email protected]> 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




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