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Re: Aggregate traffic management

  • From: Kyle C. Bacon
  • Date: Tue Jan 28 17:49:23 2003

Take a look at a product called "Path Control" by RouteScience.

http://www.routescience.com/

I have seen their product in action and it is very slick.  Does exactly
what you want,
plus a whole lot more and does it transparently (so if it fails you aren't
SOL) via
manipulating BGP tables and nexthop based on a multitude of criteria.

K



                                                                                                                   
                    Stanislav                                                                                      
                    Rost                 To:     nanog@merit.edu                                                   
                    <stanrost@lcs        cc:                                                                       
                    .mit.edu>            Subject:     Aggregate traffic management                                 
                    Sent by:                                                                                       
                    owner-nanog@m                                                                                  
                    erit.edu                                                                                       
                                                                                                                   
                                                                                                                   
                    01/28/2003                                                                                     
                    04:59 PM                                                                                       
                                                                                                                   
                                                                                                                   





Dear NANOGers,

I have a very hands-on question:
Suppose I am a network operator for a decent-sized ISP, and I decide
that I want to "divide" aggregate traffic flowing through a router
toward some destination, in order to then send some of it through one
route and the remainder through another route.  Thus, I desire to
enforce some traffic engineering decision.

How would I be able to accomplish this "division"?  What technologies
(even if vendor-specific) would I use?

I can think of some methods like prefix-matching classification and
ECMP, but I am still not sure exactly how the latter works in practice
(at the router level) and how one may set them up to achieve such
load-sharing.

Thank you for your expertise and lore,

--
Stanislav Rost <stanrost@lcs.mit.edu>
Laboratory for Computer Science, MIT







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