Wow! I've never heard of thus. How were the counterfeit servers eventually discovered to be counterfeits? Sounds like this went pretty deep.
you buy one, and ask your engineers to go to work on it. make sure it is air gapped…
LOL, more like, you take the factory manufacturing stuff, and the stolen source code for the OS that runs on it, you run a sed script to replace 'Cisco' with '3Com' and 'IOS' with '3OS' but make it not actually do so everywhere, and then just change the badge and ship to customers.
And for what it's worth, they were network switches/routers, not servers. Cisco didn't make 'servers' back in the day.
https://www.infoworld.com/article/2674627/3com-huawei-joint-...
The debug messages even still said Cisco. It was ridiculous.