illumos gate

libdladm/dlmgmtd erroneously accepts link names like "aggr01" as valid. though ifconfig/ipadm are unable operate on them.

dladm(1M):

       link

           A datalink, identified by a name. In general, the name can use any
           alphanumeric characters (or the underscore, _), but must start with
           an alphabetic character and end with a number. A datalink name can
           be at most 31 characters, and the ending number must be between 0
           and 4294967294 (inclusive). The ending number must not begin with a
           zero. Datalink names between 3 and 8 characters are recommended.