nanog mailing list archives
Re: NetFlow - path from Routers to Collector
From: "Roland Dobbins" <rdobbins () arbor net>
Date: Wed, 02 Sep 2015 00:12:27 +0700
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.
Did you manage your routers and switches and hosts and so forth in-band, too?I've done netflow over production links for two very large backbone networks.
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 <rdobbins () arbor net>
Current thread:
- Re: NetFlow - path from Routers to Collector, (continued)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 02)
- Re: NetFlow - path from Routers to Collector jim deleskie (Sep 02)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 02)
- Re: NetFlow - path from Routers to Collector Mark Tinka (Sep 02)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 02)
- Re: NetFlow - path from Routers to Collector Mark Tinka (Sep 02)
- Re: NetFlow - path from Routers to Collector Mark Tinka (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Steve Meuse (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Shane Ronan (Sep 01)
- Re: NetFlow - path from Routers to Collector Niels Bakker (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Shane Ronan (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector George, Wes (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Niels Bakker (Sep 02)