Nexus Admin account and Jumbo Frame setup
For some reasons we have lost the local admin password to our nexus platform, but can login using a TACACS account. Is that a way to reset the Admin password on the Nexus platform without doing password-recovery? Can I just overwrite the admin password with the command - username admin password Cisco123
Also, I want to enable jumbo frame support across the Nexus platform, N5Ks and N7Ks. Do I have to change it on the class-map with regards to the N5Ks an enable it on the N7K using the system jumbo size 9216 and that is all, or do I also need to change it on the individual / port-channel interfaces?
Finally, will such change cause any downtime?
Thanks for your help