Assuming that you use at least code 4.2, as there is an issue with earlier
code which halts the sampling process after some time and skyrockets CPU.
Said.
At 17:19 28-3-01, Greg Ketell wrote:
>The netflow statistics on the 7500 is gathered when you enable netflow
>switching. You get information on every packet through the router. On
>the GSR on on the M-series routers there is a statistical sampling done
>and then the information about those sampled packets is put into
>netflow-format and exported.
>
>On the M-series you can use filters to define what packets are sampled
>(syn/fin only, http only, packets from nn.nn.nn.nn only, etc), what ratio
>of packets you want to sample (grab every 1/N packets) and how long a
>"train" of packets to sample (1/N + X). But the router has throttles
>built in all over the place such that if you define sampling that would
>kill the router it will drop the information rather than dropping the router.
>
>GK
This archive was generated by hypermail 2b29 : Mon Aug 05 2002 - 10:42:41 EDT