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Avoiding posting from my PI...
I would echo the appreciation for the frank nature of this post, while most of the information had previously been released on an Ad hoc basis, it is refreshing contrast to both commercial and mutual operators.. some of whom could appear to hide behind non-disclosure clauses when communicating details of incidents which affected double digit percentages of the Internet population. While probably out of scope for a post on the engineering blog, I do feel there is a conspicuous absence of information on the time line relating to how and when the incident was communicated to both LIR 'customers' and the broader user base who may have been impacted. The fact this post specifically apologises for the operational failings is a positive step; however despite the statement that RIPE "have clarified the service announcements procedures", I doubt that I am alone in looking forward to clarification on why it took several hours between it being discovered "that several zone files are missing" and somebody thinking it might be useful to communicate this... Lastly on the topic of the 'hand drawn' diagram, in this industry it could be argued that your credibility is lacking if there isn’t at least one network or Internet facing system still in use which you personally designed on a napkin or the back of a beer mat :)