[j-nsp] AS-PIC for flow export licensing requirement

[sthaug at nethelp.no]

> Check these web pages out. Individual licenses must be purchased for
> additional services such as Network Address Translation (NAT), stateful
> firewall, intrusion detection services (IDS), IPSec. J-Flow accounting, and
> voice services

On the other hand - with a sufficiently low sampling rate, RE based
sampling may be feasible. No license needed for that.

We use RE based sampling on MX. Works for us, YMMV.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no