[c-nsp] Multiple flow-masks

[Tóth András]

Gert,

As far as I know it's not on the roadmap for Sup720 but will be available
for Sup2T with Flexible Netflow. In Sup2T FNF you can also have
per-interface flowmask for Netflow.

Best regards,
Andras


On Mon, Dec 10, 2012 at 2:03 PM, Gert Doering <gert at greenie.muc.de> wrote:

> Hi,
>
> On Mon, Dec 10, 2012 at 01:50:04PM +0100, Tóth András wrote:
> > The reason you start seeing a conflict as soon as you enable mls flow
> ipv6
> > is that IPv6 Netflow can only be enabled globally, not per-interface.
>
> Which is actually an interesting topic on its own.  It used to be that
> way for IPv4 Netflow, too, but later the code was changed to make that
> per-interface (and it seems to really do that at flow collection time,
> not only at flow-export time - so it helps TCAM contention if netflow
> collection doesn't have to be on on all interfaces).
>
> Now the $5M question - is the hardware capable of doing IPv6 per-interface
> netflow, and if yes, is this on Cisco's roadmap?  For the Sup720, or
> only for the Sup2T?
>
> (I'm more curious about the details, and not going to rant either way...)
>
> gert
> --
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> Gert Doering - Munich, Germany
> gert at greenie.muc.de
> fax: +49-89-35655025
> gert at net.informatik.tu-muenchen.de
>