Don Jacob Tue, 07/23/2013 - 02:52
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I know the answer is too late for the asker, but this is one of the top posts when searching for BGP NetFlow and it doesnt have an answer!

The command "ip flow-export version 5 peer-as" adds information about the peering AS (immediate upstream and downstream AS) with your NetFlow data.

If you use the command "ip flow-export version 5 origin-as", you can see information about the AS from which the traffic originated and where it would be terminated, ie. the absolute origin and destination AS information.

Don Thomas Jacob

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