nanog mailing list archives
Re: NetFlow - path from Routers to Collector
From: Shane Ronan <shane () ronan-online com>
Date: Tue, 01 Sep 2015 13:18:17 -0400
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.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 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)