testbed: name: 'virl' devices: nx-osv-1: type: "NX-OSv 9000" os: "nxos" alias: uut tacacs: login_prompt: 'login:' password_prompt: 'Password:' username: admin passwords: tacacs: admin enable: admin line: admin connections: defaults: class: 'unicon.Unicon' a: protocol: telnet ip: port: custom: abstraction: order: [os] csr1000v-1: type: asr1k os: "iosxe" alias: helper tacacs: login_prompt: 'login:' password_prompt: 'Password:' username: cisco passwords: tacacs: cisco enable: cisco line: cisco connections: defaults: class: 'unicon.Unicon' a: protocol: telnet ip: port: custom: abstraction: order: [os]