cisco 3850 upgrade ios

Upgrade from 3x to 16x

software install file flash:cat3k_caa-universalk9.16.03.05.SPA.bin new force

Upgrade from 16.x to 16.x:

request platform software package install switch all file flash: new auto-copy

Ref:

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/16-3/release_notes/ol-16-3-3850.html#pgfId-1165953

Remove OLD IOS:

request platform software package clean

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