The scheme mode of the domain. Setting h3cDomainSchemeMode to none(1) indicates
the domain has none scheme. Setting h3cDomainSchemeMode to local(2) indicates the
domain will use local-server as a scheme. Setting h3cDomainSchemeMode to radius(3)
or tacacs(4) indicates the domain will use radius or tacacs scheme. If set
h3cDomainSchemeMode to radius(3) or tacacs(4), h3cDomainAuthSchemeName and
h3cDomainAcctSchemeName must be set to valid values. And if h3cDomainSchemeMode is
set to none(1) or local(2), the value of h3cDomainAuthSchemeName and h3cDomainAcctSchemeName
will be ignored.