Looking for actual documentation that correlates the following assumption on my part: AR1 - 8x5xNBDAR2 - 8x5x4 hourAR3 - 24x7x4 hourAR4 - 24x7x2 hour   This is derived from comparing the options and prices:   AR1 SD-AR1K-NC57C3MSAR LEVEL 1 NO SW SUP ...

A customer is insistent on only ordering a DNA-E bundle ( C9410R-96U-BNDL-E ) of a C9400 and adding a 2nd SUP as a spare, even though I point out that high availability is specific to DNA-A in the datasheet/ordering guide.   https://www.cisco.com/c/e...

I was tinkering researching why POE was not working on any of the ports of a C9200L I picked up for my lab, and noticed that the Fans were not reporting as working(they were actually spinning and speed controlled)Cisco IOS XE Software, Version 16.12....