Credential management
- Account
- access user (user-password | operator-password | adminstrator-password)
- no access user <oldUserNum> enable
- access user <enableUser> name <username>
- access user <enableUser> level admin
- access user <enableUser> password <password>
- access user <enableUser> enable
- no access user <disableUser> enable
- SNMP
- snmp-server (write-community | read-community) <newSnmpCommunity>