Information
The enable command controls access to Privileged EXEC and all configuration command modes. The enable password authorizes users to execute the enable command. When the enable password is set, the CLI displays a password prompt when a user attempts to enter Privileged EXEC mode.
It is recommended that the enable secret password be used at all times to grant administrative access to the Arista switch.
Solution
Configure and enable password
(config)#enable password {password string}