Status of This Memo

   This document is not an Internet Standards Track specification; it is 
   published for informational purposes.

   This document is a product of the Internet Research Task Force 
   (IRTF).  The IRTF publishes the results of Internet-related research 
   and development activities.  These results might not be suitable for 
   deployment.  Documents approved for publication by the IRSG are not a 
   candidate for any level of Internet Standard; see Section 2 of RFC 
   5741.

   Information about the current status of this document, any errata, 
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc9999.
