Re: D/DoS mitigation hardware/software needed.

[Martin Hannigan <martin () theicelandguy com>]

On Mon, Jan 4, 2010 at 4:19 PM, Rick Ernst <nanog () shreddedmail com> wrote:

> Looking for D/DoS mitigation solutions.  I've seen Arbor Networks mentioned
> several times but they haven't been responsive to literature requests
> (hint,
> if anybody from Arbor is looking...).  Our current upstream is 3x GigE from
> 3 different providers, each landing on their own BGP endpoint feeding a
> route-reflector core.
>
> I see two possible solutions:
> - Netflow/sFlow/***Flow  feeding a BGP RTBH
> - Inline device

     - Outsource to service provider


Netflow can lag a bit in detection.  I'd be concerned that inline devices
> add an additional point of failure.  I'm worried about both failing-open
> (e.g. network outage) and false-positives.

How often are you getting DDoS'd?

The financials of using a managed service provider vs.
buy-all-your-own-grrovy-stuff can be fairly compelling especially if the
amount of DDoS you experience is almost nil.

Re: Arbor. I don't have any recent experience, but they've been around for a
long time, have a very experienced team that understands ISP and enterprise
and the product is mature. Hard to go wrong if you can justify the costs.
YMMV.

Best,

-M<


-- 
Martin Hannigan                               martin () theicelandguy com
p: +16178216079
Power, Network, and Costs Consulting for Iceland Datacenters and Occupants