SSH2 functionality is not present in the base ExtremeXOS software image, but is available as an additional, installable module.
Before you can access any SSH2 commands, you must install this additional software module. Without the software module, the commands do not appear on the command line. To install the software module, see the instructions in Software Upgrade and Boot Options
Note
Do not terminate the SSH process (exsshd) that was installed since the last reboot unless you have saved your configuration. If you have installed a software module and you terminate the newly installed process without saving your configuration, your module may not be loaded when you attempt to restart the process with the start process command.Because SSH2 is currently under U.S. export restrictions, you must first obtain and install the ssh.xmod software module from Extreme Networks before you can enable SSH2.
You must enable SSH2 on the switch before you can connect to the switch using an external SSH2 client.
After SSH2 has enabled, it TCP port 22 and is available on all virtual routers by default.