I've not read every reply, but let me add my voice as some who has worked on and ran SEVERAL large networks, in no case in the last long number of years have I had access to an OOB network that was sized to carry anything in large volume, and in fact like many others replied on a robust number of path at that us many the networks inband. These networks survived many "large" DDoS attacks and far more fat finger incidents then I like to think about. I don't think I've even worked with a client network as far as I can remember that had a nailed up / robust OOB network for data collection or other purposes. -jim On Tue, Sep 1, 2015 at 8:30 PM, Avi Freedman <freedman@freedman.net> wrote:
(Jared wrote):
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Most people I've seen have little data or insight into their networks, or don't have the level that they would desire as tools are expensive or impossible to justify due to capital costs. Tossing in a recurring opex cost of DC XC fee + transport + XC fee + redundant aggregation often doesn't have the ROI you infer here. I've put together some models in this area. It seems to me the DC/real estate companies involved could make a lot (more) money by offering an OOB service that is 10Mb/s flat-rate for the same as an XC fee and compete with their customers.
Equinix does have a very aggressively priced 10Mb/s flat-rate OOB (single IP only but that's not that hard to work around) for essentially XC pricing. It's been stable but not something you'd rely on for 100% packet delivery to some other point on the Internet (so more for reaching a per-pop OOB than for making a coherent OOB network with a bunch of monitoring running 24x7).
Still, it's a good value for what it is.
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- Jared
Avi Freedman CEO, Kentik avi at kentik dot com