2 Sep
2015
2 Sep
'15
5:43 a.m.
On 2 Sep 2015, at 13:25, Pierfrancesco Caci wrote:
2 out of 2 large backbone networks I've experience with use inband for flow export.
There was supposed to be a 'should' in there, apologies. I've already clarified that VLAN/VRF is Good Enough for flow telemetry, and that most who separate it out from customer traffic do so logically. There are a few very large networks who do this completely physically out-of-band; they made the decision that they were going to invest in the ability to ship telemetry around and analyze it, and spent a lot of capex and opex to be able to do just that. ----------------------------------- Roland Dobbins <rdobbins@arbor.net>