Status of This Memo

   This document is not an Internet Standards Track specification; it is 
   published for the historical record.

   This document defines a Historic Document for the Internet community.
   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.  This RFC represents the individual opinion(s) of one or 
   more members of the Workgroup Research Group of the Internet Research 
   Task Force (IRTF).  Documents approved for publication by the IRSG 
   are not candidates 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.
