BGP Load Sharing

Sat Sep 18 06:55:32 UTC 2004

Chris,

  Take a look at Cisco OER  
http://www.cisco.com/en/US/netsol/ns471/ 
networking_solutions_package.html or Route Science  
http://www.routescience.com/technology/index.html.  You could also  
continue doing what you are doing,  The 12k supports BGP, Netflow, SNMP  
and some custom scripts

-Matt

On Sep 17, 2004, at 8:40 PM, Chris Strandt wrote:

>
> I am hoping to learn from the great pool of experience on this list.
>
> We currently have 2 OC3 connections going to 2 seperate providers.  We  
> are using netflow statistics to balance our traffic flows (which  
> outgoing is our major concern).  Flow tools, snmp output, some custom  
> scripts, and some bgp weighting does the trick.
>
> We are in the process of upgrading to Cisco 12012 GSRs, and adding  
> additional connectivity.  We need to find something we can use to do  
> the same type of thing on the 12012 GSR.  The custom scripts work  
> fine.. but it appears some line cards don't support netflow.
>
> 1) Is there an open source software that will assist us in load  
> sharing?
> 2) Are there specific cards we need for netflow on a 12000 series? Is  
> the difference based on Line Card Engine (0,1,2,3,etc)?
> 3) Is there an alternate way to control outgoing traffic flow to  
> multiple upstreams using bgp (besides splitting the address range up  
> and blindly pointing chunks to each provider)?
>
> Thanks,
> -Chris Strandt
> Liquid Web Inc
>