I-D ACTION:draft-ietf-rps-aspath-00.txt

[[e-mail]]

A New Internet-Draft is available from the on-line Internet-Drafts 
directories. This draft is a work item of the Routing Policy System Working
Group of the IETF.                                                         

       Title     : Autonomous System Path Expression Extension to Ripe-181 
       Author(s) : C. Alaettinoglu, J. Yu
       Filename  : draft-ietf-rps-aspath-00.txt
       Pages     : 8
       Date      : 11/21/1995

Ripe-181 [Bates et al., 1994] is a language to specify routing policy 
constraints for inter-domain routing in the Internet.  Ripe-181 allows the 
specification of both import policy constraints (by specifying as-in and 
interas-in attributes) and export policy constraints (by specifying as-out 
and interas-out attributes).  There are limitations in the types of 
preference and access control policies that can be described by RIPE-181 
and the limitations became evident when several enterprises tried to use 
RIPE-181 to describe their routing policies.         

One such limitation is the lack of ability to specify autonomous-system 
path expressions, henceforth referred to as AS path expressions, 
in the policy attributes (i.e. as-in, interas-in, as-out and 
interas-out attributes).  This document extends Ripe-181 to 
enable the specification of AS path expressions in the aut-num 
objects.  It is assumed that the reader is familiar with Ripe-181. 

Internet-Drafts are available by anonymous FTP.  Login with the username
"anonymous" and a password of your e-mail address.  After logging in,
type "cd internet-drafts" and then
     "get draft-ietf-rps-aspath-00.txt".
A URL for the Internet-Draft is:
ftp://ds.internic.net/internet-drafts/draft-ietf-rps-aspath-00.txt
 
Internet-Drafts directories are located at:	
	                                                
     o  Africa                                   
        Address:  ftp.is.co.za (196.4.160.8)	
	                                                
     o  Europe                                   
        Address:  nic.nordu.net (192.36.148.17)	
        Address:  ftp.nis.garr.it (192.12.192.10)
	                                                
     o  Pacific Rim                              
        Address:  munnari.oz.au (128.250.1.21)	
	                                                
     o  US East Coast                            
        Address:  ds.internic.net (198.49.45.10)	
	                                                
     o  US West Coast                            
        Address:  ftp.isi.edu (128.9.0.32)  	
	                                                
Internet-Drafts are also available by mail.	
	                                                
Send a message to:  [e-mail]. In the body type: 
     "FILE /internet-drafts/draft-ietf-rps-aspath-00.txt".
							
NOTE: The mail server at ds.internic.net can return the document in
      MIME-encoded form by using the "mpack" utility.  To use this
      feature, insert the command "ENCODING mime" before the "FILE"
      command.  To decode the response(s), you will need "munpack" or
      a MIME-compliant mail reader.  Different MIME-compliant mail readers
      exhibit different behavior, especially when dealing with
      "multipart" MIME messages (i.e., documents which have been split
      up into multiple messages), so check your local documentation on
      how to manipulate these messages.
							
For questions, please mail to [e-mail].
							

Below is the data which will enable a MIME compliant mail reader 
implementation to automatically retrieve the ASCII version
of the Internet-Draft.

ftp://ds.internic.net/internet-drafts/draft-ietf-rps-aspath-00.txt"><ftp://ds.internic.net/internet-drafts/draft-ietf-rps-aspath-00.txt>