On 18/01/12 11:23, Nick Hilliard wrote:
On 18/01/2012 11:21, Phil Mayers wrote:
On 18/01/12 10:38, Nick Ryce wrote:
Can nfdump/nfsen show useage per AS number as I cannot see anything on
their site?
I don't know if it's in earlier versions, but the latest version of nfdump
has aggregation / summary by asnum, e.g.
nfdump<...> -a -A srcas,dstas
...or:
nfdump<...> -s srcas -s dstas
As with all netflow data, you need to be careful to specify on your routers
whether you want the BGP peer ASN or the real src/dst asn to appear in your
netflow data.
Sure. In particular, I note that on the 6500/sup720 platform, src/dst AS
in the netflow requires lookup (and export) by the supervisor CPU;
distributed NDE i.e. done by the linecard CPU will not be available.
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