5 ms·
Nice analysis. Passed along to the folks working on the (internal) postmortem for this outage.
by packetslave 9y ago
Nice analysis. Passed along to the folks working on the (internal) postmortem for this outage.
- justinjlynn 9y agoGlad to be of some assistance. Please note that the aggregation (in the diff, to reduce extraneous noise from deaggregated announcements) may have introduced some artifacts -- but on the whole it should be accurate (assuming lookups were comprehensive, and that no google AS transits for third party networks). Would appreciate any feedback as to the methods. Cheers.
- justinjlynn 9y agoSince I've had a moment to clean this up, here's a more accurate grepcidr (amazing tool for this -- aggregation is an awful hack and actually adds more noise than it takes away; sorry to your post mortem team) and some analysis/histo -- this is much clearer: https://pastebin.com/raw/96sXXEe1 https://pastebin.com/raw/96sXXEe1
- justinjlynn 9y agomay want to change the grep on the data-raw-table to grep -wF '{}' ... the other might miss google AS in the middle of a multi-hop route.