nanog mailing list archives
RE: NetFlow - path from Routers to Collector
From: "Chuck Church" <chuckchurch () gmail com>
Date: Tue, 1 Sep 2015 16:45:45 -0400
Agree. Most OOB is lacking redundancy too, so a single failure can really take the shine off an OOB deployment. Especially when you've put your management traffic on it, including radius traffic, and you're using 802.1X. Found that out the hard way a few years ago. Chuck -----Original Message----- From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Tarko Tikan Sent: Tuesday, September 01, 2015 3:47 PM To: nanog () nanog org Subject: Re: NetFlow - path from Routers to Collector hey,
It should've already been spent for an OOB/DCN network, which should've been provisioned with flow telemetry in mind.
Bad advice. No amount of money will fix major platforms that are not happy to export flow telemetry via router management ports. Sometimes it can be done via nasty vrf leaking hacks, sometimes it cannot be done at all. Management ports are typically directly connected to routing engines while netflow data is generated in hardware in PFE. In-band netflow works on all platforms without such issues. -- tarko
Current thread:
- Re: NetFlow - path from Routers to Collector, (continued)
- 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 Jared Mauch (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Jared Mauch (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Nick Hilliard (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Jared Mauch (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- RE: NetFlow - path from Routers to Collector Chuck Church (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Jared Mauch (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- Re: NetFlow - path from Routers to Collector Jared Mauch (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)
- RE: NetFlow - path from Routers to Collector Frank Bulk (Sep 10)
- RE: NetFlow - path from Routers to Collector White, Andrew (Sep 10)
- Re: NetFlow - path from Routers to Collector Todd K Grand (Sep 10)
- Re: NetFlow - path from Routers to Collector Niels Bakker (Sep 01)
- Re: NetFlow - path from Routers to Collector Roland Dobbins (Sep 01)