BGP Load Sharing

Sat Sep 18 13:01:49 UTC 2004

It looks like OER doesn't support 12K routers... although its been 
awhile since I looked at Route Sciences.. I will look at that in more 
detail.

It appears only certain Line Cards support Netflow (Engine 2 and up) 
with varying performance degradation.

-Chris

Matthew Crocker wrote:

>
> 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
>>
>