Roland,
While your way may be best practice, sometimes real life gets in the way
of best practice.
Shane
On 9/1/15 1:12 PM, Roland Dobbins wrote:
On 2 Sep 2015, at 0:08, Steve Meuse wrote:
Your advice is not "one size fits all".
Actually, it is.
Large backbone networks have DCNs/OOBs, and that's where they export
their NDE.
I've done netflow over production links for two very large backbone
networks.
Did you manage your routers and switches and hosts and so forth
in-band, too?
Over the combined 17(?) years, never saw a problem.
Until you do.
Running flow telemetry in-band is penny-wise and pound-foolish, for
networks of any size, in any circumstances. All management-plane
traffic (and that's what flow telemetry is) should be segregated from
the production network data plane.
-----------------------------------
Roland Dobbins <rdobb...@arbor.net>
