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Re:A presentation about optical networking [pdf] by computator on Sunday December 04, 2016 @09:26AM (#13100077)
Also, there are bunch of other interesting sounding tutorials on the North American Network Operators' Group (NANOG) website:

https://www.nanog.org/resources/tutorials

Re:A presentation about optical networking [pdf] by ansgri on Sunday December 04, 2016 @02:51PM (#13101450)
Thanks, went off to study Traceroute Tutorial (https://www.nanog.org/sites/default/files/traceroute-2014.pd...)