Level 3 technician's misstep causes largest telephone outage ever reported

Re:Level 3 technician's misstep causes largest telephone out... by ashleyn on Monday March 19, 2018 @08:29AM (#16617830)

My thoughts exactly:

"The network management software interpreted the empty field as a 'wildcard,' meaning that the software understood the blank field as an instruction to block all calls, instead of as a null entry. This caused the switch to block calls from every number in Level 3’s non-native telephone number database."

WTF kind of crappy design is that?

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Re:Level 3 technician's misstep causes largest telephone out... by cesarb on Monday March 19, 2018 @09:33AM (#16618203)

Probably a filtering interface with several fields, in which you fill the ones you want to filter on. If you don't fill a field, it's not used as a criteria for filtering (so empty fields are a "don't care" for that field's criteria).

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Re:Level 3 technician's misstep causes largest telephone out... by greglindahl on Monday March 19, 2018 @02:34PM (#16621558)

This is the basic design pattern: "Google mistakes entire web for malware"

https://www.theregister.co.uk/2009/01/31/google_malware_snaf...

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