Indicates whether TACACS+ or RADIUS is the
primary login authentication, i.e which method
will be tried first for a telnet session. If
tacacsLoginAuthentication and
radiusLoginAuthentication are set to disabled then
sysTelnetPrimaryLoginAuthentication will have a
value of local(3).
This object is deprecated and replaced by
cacPriorityTable in CISCO-AAA-CLIENT-MIB.