Symptom
"transport output ssh" under "line template " are not blocking output telnet for current session
Conditions
Configuring block outbound telnet session
ASR-9000#conf
ASR-9000(config)#line template my-template transport output ssh
ASR-9000(config)#commit
Verifying outbound telnet session. Telnet wasn’t blocked. It continue works
ASR-9000#telnet vrf test12345 10.0.1.17
Trying 10.0.1.17...
Connected to 10.0.1.17.
Escape sequence is '^^q'.
User Access Verification
Username: