[nsp] no AS# in netflow data on 7500

[Hank Nussbacher]

At 01:57 PM 19-05-04 +0000, Marko Milivojevic wrote:

Try reading over:
http://www.caida.org/tools/measurement/cflowd/newfaq.xml#as0

to see if perhaps your answer lies there.

-Hank

> > While it is the case that lack of BGP (AS-based) routing information for a
> > destination will lead to 0 dst_as values for flows to that destination,
>the
> > rest of that answer is too sweeping.  The dst_as will be filled in for
> > destinations with AS-based routing, & the src_as can still be non-zero for
> > some flows even if dst_as is 0.  Also, there is no one right choice for
> > "origin-as" or "peer-as";  it depends on what you want to track.
>
>     You are correct, but in the case of purely internal router and peer-as,
>wouldn't src_as also be 0? :-) /* I didn't try this scenarion, quite
>honestly */
>
>     I agree that for "what you want to track", you need to select what
>setting you want, but for troubleshooting flows, origin-as is more useful
>than peer-as.
>
>Marko.
>
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