Hi,

I have set up our netflow collection using the instructions here:
http://www.dynamicnetworks.us/netflow/3-configure-your-routers.html

However, I'm not quite sure if it is right to use peer-as or origin-as.

According to this article: 
http://www.netcraftsmen.net/welcher/papers/netflow.html

"Use the origin-as keyword for the AS of the source
or destination
address. Use peer-as for the AS of the ISP peer used to reach
the
source  and destination. Omit either keyword if you have a
non-BGP-speaking
router (to save a few CPU cycles)."

However it is still unclear to me.

We have BGP speaking routers and the network guys are the one doing the 
configuration of those routers. I only do the netflow collector setup.

Can you tell me if we should use "ip flow-export version 5 peer-as or origin as?
All I know is that we have at least four different upstream providers and we 
are doing BGP to each.

I'm only worried because I might be displaying erroneous reports, let's say I 
use flow-stat to report the top destination or source AS.



Thank you.




 
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