initial cisco nexus setup without serial cable
Solution 1:
Cisco has a standard serial cable, called a "console cable." You can find the pinouts on line, or I'm sure there many places to buy one.
Solution 2:
It does seem to be possible without serial port. By default it requests "Power On Auto Provisioning" via dhcp, and there is an open source tool to respond to it.
https://packet2python.io/2018-12-13-poap/
The serial cable part number is 72-3383-01 but it's possible to use a makeshift adapter with a regular ftdi cable using this pinout:
