tacacs-server host 192.168.1.10
username AdminBackup secret STUDYCCNA
aaa new-model
tacacs server TACACS_SERVER1
address ipv4 192.168.1.10
key STUDY_CCNA1
radius server TACACS_SERVER2
address ipv4 192.168.1.11
key STUDY_CCNA2
aaa group server tacacs+ STUDY_CCNA
server name RADIUS_SERVER1
server name RADIUS_SERVER2
aaa authentication login default group STUDY_CCNA local