In order to do that I would have to enable 'ip route cache flow' on a
backbone interface. Which the cflowd documentation says not to do?
i.e..
___ ip route cache flow enabled ( to catch ingress
traffic )
v
---------- ----------
| ISP A |--------| ISP B |--(SRP backbone interface)
---------- ----------
^___ip route cache flow enabled (to
catch egress traffic)
Is this correct? Anyone have any idea about the performance issues of
enabling 'ip route cache flow' on an OC-12 SRP interface (300Mbps on
average) for a Cisco 75XX. Can this be done without serious performance
problems using version 5 flow-export?
Todd Caine
Jesper Skriver wrote:
> On Fri, Oct 06, 2000 at 10:47:51AM -0700, Todd Caine wrote:
> > I apologize in advance if we have beat this topic to death.
> > I just am not quite understanding if cflowd is working
> > correctly. Here is my scenario:
> >
> > I am ISP B, I have a direct connection to ISP A. I enable
> > ip route cache flow on my interface.
> >
> > ___ ip route cache flow enabled
> > v
> > ---------- ----------
> > | ISP A |--------| ISP B |
> > ---------- ----------
> >
> > Should flow-export data only be for inbound flows since I
> > only have 'ip route cache flow' enabled on the ingress
> > interface?
> >
> > Is it possible to get data for outbound flows? How?
>
> Very simple, enabled netflow on the interfaces on that router, where you
> recieved that traffic.
>
> /Jesper
>
> --
> Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456
> Work: Network manager @ AS3292 (Tele Danmark DataNetworks)
> Private: Geek @ AS2109 (A much smaller network ;-)
>
> One Unix to rule them all, One Resolver to find them,
> One IP to bring them all and in the zone to bind them.
-- cflowd mailing list cflowd@caida.org
This archive was generated by hypermail 2b29 : Fri Oct 06 2000 - 13:42:38 PDT