http://www.ietf.org/internet-drafts/draft-ietf-dnsind-test-tlds-10.txt

reserves some top-level domain names for test and
documentation purposes.  These are:

      ".test" is particularly recommended for use in testing
      of current or new DNS related code.

      ".example" is particularly recommended for use in
      documentation or as examples.

      ".invalid" is intended for use in online construction
      of domain names that are sure to be invalid and which
      are obviously invalid.

      The ".localhost" TLD has traditionally been statically
      defined in host DNS implementations as having an A
      record pointing to the

It goes on to say:

The Internet Assigned Numbers Authority (IANA) also
currently has the following second level domain names
reserved which can be used as examples.

      example.com
      example.net
      example.org

As this seems an excellent idea for documentation purposes,
can I suggest that the names

      test.XXX.au
      example.XXX.au
      invalid.XXX.au

never be assigned by any XXX.au registry.  XXX is, of
course, .com.au, .edu.au, .net.au, etc.

It could also be wise to exclude lcoalhost.XXX.au from
allocation, if only because of the confusion that such an
assignment could cause.

Naturally, if the proposal is carried (however that is done
now and in the future), it should appear in the policies for
assigning names in each of the XXX.au domains.

Thank you,
glen

-- 
 Glen Turner                               Network Specialist
 Tel: (08) 8303 3936          Information Technology Services
 Fax: (08) 8303 4400         The University of Adelaide  5005
 Email: glen.turner§adelaide.edu.au           South Australia