handling DDoS to hosted CDN cache

[Yang Yu <yang.yu.list () gmail com>]

How often does your hosted CDN cache get DDoS'ed? I am curious how
these get handled (especially when it would cause upstream/backbone
congestion). Is this treated differently than DDoS to customers? Any
experience to share on working with CDNs to solve these issues?

Any CDN that provides good information/resources for mitigation (e.g.
drop A traffic, ratelimit B traffic to x pps)?

If the cache provides flowspec feed, how useful would it be?


Yang