One of my readers sent me a link to CCO documentation containing this gem:
Beginning with Cisco NX-OS Release 7.0(3)I2(1), Cisco Nexus 9000 Series switches handle the CLI configuration actions in a different way than before the introduction of NX-API and DME. The NX-API and DME architecture introduces a delay in the communication between Cisco Nexus 9000 Series switches and the end host terminal sessions, for example SSH terminal sessions.
So far so good. We can probably tolerate some delay. However, the next sentence is a killer…
2017-05-08: The behavior is caused by an old bug in Linux TTY driver. Fixed NX-OS versions are planned to be shipped in late May 2017. More details here.2017-04-05: The wonderful information disappeared from Cisco's documentation within 24 hours with no explanation whatsoever. However, I expected that and took a snapshot of that page before publishing the blog post ;)

Texas engineers devise a non-volatile memristor-like switch from 2D hexagonal boron nitride