About 20 years ago it was well-known that the cheap Cisco stuff on eBay was authentic in that there were say, two shifts worth of running the production line fo

About 20 years ago it was well-known that the cheap Cisco stuff on eBay was authentic in that there were say, two shifts worth of running the production line for Cisco and a partial shift for unofficial production sold outside of Cisco authorized channels and with no profit going to Cisco.