For more information refer to the User Key Based Authentication
section of the EXOS User Guide. Also see the discussion about this topic on the HUB here.A utility such as PuTTYgen can be used to generate the public and private keys. If using PuTTY to connect to the CLI, select the private key (.ppk) file by navigating to Connection -> SSH -> Auth and then click Browse. Then login using SSH and the IP address.
Logs from the switch login:
10:08:07.94 Msg from Master : Did key authentication for user admin (192.0.2.200)
10:08:07.94 Msg from Master : Login passed for user admin through ssh (192.0.2.200)
10:08:07.94 Msg from Master : Found valid key for user admin
Putty switch login:
login as: admin
Authenticating with public key "rsa-key-20150930"
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This product is protected by one or more US patents listed at http://www.extremenetworks.com/patents along with their foreign counterparts.
Press the or '?' key at any time for completions.
Remember to save your configuration changes.
This article has been adjusted from 1024 to 2048, which is required in later versions.