Cisco Nexus: Crap I Learned This Weekend

I’m not going to be one to write up a nice technical article with example configs, diagrams, etc. I tend to write just “what happened” and what was the fix/answer/etc. So with that, here are my own personal notes (that someone else may find useful) about the Nexus 5548s (5000 series).

1. Don’t try to FTP an image using anything but the management interface. CoPP takes over and it will take forever to get the image to the device. I tried to upload about a 180Mb image, and it took roughly 40 minutes (using 2 different FTP programs and servers to ensure it wasn’t one or the other)

2. You can’t use promiscuous ports for private vlans on a 2000 series fabric extender. Nope, can’t do it…see here.

3.  To upgrade the system images: (I’m assuming you can get them to bootflash on your own)

install all kickstart bootflash:///KickStartFileName.bin system bootflash:///SystemImageFileName.bin

If you you want to see the whole Cisco doc on this procedure, go here.

Hopefully this may help someone in the future, or at least helpful for me next time I do this!