can upgrade catalyst 3850-48P-E from ver 3.6.6-E to fuji 16.9.4?

[Herman2018]

Hi, good day! anyone can please advise whether can directly upgrade C3850-48P-E from ver 3.6.6-e to fuji 16.9.8? Thanks in advance!

[balaji.bandi · Accepted solution]

yes you can upgrade, suggest upgrading to the latest code 16.12.X 

read the release notes :

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/16-12/release_notes/ol-16-12-3850.html

[Herman2018]

Thank you Balaji! Fuji 16.9.8 is also very stable version, right? 

[Herman2018]

Hi Balaji, can I delete the .bin image file after upgrade under install mode? there .bin file and some .pkg files under flash: . I need to delete some file for more free space. thanks. 

[Leo Laohoo]

Cisco 3850: IOS-XE/Firmware Upgrade

If using 16.X.X, religiously monitor the control-plane CPU and memory utilization. 

[Herman2018]

Thanks Leo for your advice! one more question, for C3850 ver 3.6.6-e , seems it doesn't support the command "request ....." , what command should I use to upgrade this version to 16.x.x? thanks

[Leo Laohoo]

The answer to the question is found in the document/guide I have provided.  

[balaji.bandi]

Thank you Balaji! Fuji 16.9.8 is also very stable version, right?   << yes you can also use this, but check the release notes any bug effects your environment.

you can use clean-up command to clear the unused packages, you can also delete .bin file if you are upgraded using install method.

[Herman2018]

Hi Balaji, thanks for your advice. However, what is the full command about "clean-up"? I cannot find this command on our switch v16.9.8. Thanks.

[balaji.bandi]

i mean to use the command to clean-up (not the clean-up command)

example :

request platform software package clean switch all

refer the command reference of 16.x

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/16-8/configuration_guide/sys_mgmt/b_168_sys_mgmt_3850_cg/b_168_sys_mgmt_3850_cg_chapter_01100.html

[Herman2018]

Thanks a lot Balaji for your kind help!!! I learned a lot from you ,Leo and other cisco very good engineers!