nanog mailing list archives

Re: UDP DoS mitigation?


From: Roland Dobbins <rdobbins () cisco com>
Date: Sat, 13 Dec 2008 02:24:23 +0800


On Dec 13, 2008, at 2:15 AM, Rick Ernst wrote:

- Are there any platforms that deal with high PPS/small packet more gracefully?

S/RTBH can deal with any type of packet-flooding DDoS at layer-3, up to the capacity of the platform in question. It sounds as if a) you should investigate getting DDoS mitigation assistance from your upstreams and/or b) moving from your currently software-based platform to a hardware-based platform at your edge to provide increased performance (this holds true irrespective of which vendor you select for your edge platform).

If you move to a hardware-based edge platform, be sure to first investigate all the particulars of its uRPF implementation so as to ensure that you can use it for S/RTBH, and if at all possible, test it before buying.

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Roland Dobbins <rdobbins () cisco com> // +852.9133.2844 mobile

     History is a great teacher, but it also lies with impunity.

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