Color Operation with BGP Label Unicast
draft-chan-idr-bgp-lu2-00

Document Type Active Internet-Draft (individual)
Last updated 2019-11-03
Stream (None)
Intended RFC status (None)
Formats plain text pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
IDR Working Group                                                            Louis Chan 
INTERNET-DRAFT                                                         
Intended status: Experimental                                          Juniper Networks 
Expires: May 4, 2020                                                        Nov 4, 2019 
                                         
         
                                            
                            Color Operation with BGP Label Unicast 
                                draft-chan-idr-bgp-lu2-00.txt 

        Abstract 

           This document specifies how to carry colored path advertisement via an enhancement 
           to the existing protocol BGP Label Unicast. It would allow backward compatibility 
           with RFC8277. 

           The targeted solution is to use stack of labels advertised via BGP Label Unicast 
           2.0 for end to end traffic steering across multiple IGP domains. The operation is 
           similar to Segment Routing.  

           This proposed protocol will convey the necessary reachability information to the 
           ingress PE node to construct an end to end path 

        Status of this Memo 

           This Internet-Draft is submitted in full conformance with the provisions of BCP 78 
           and BCP 79. 

           Internet-Drafts are working documents of the Internet Engineering Task Force 
           (IETF).  Note that other groups may also distribute working documents as Internet-
           Drafts.  The list of current Internet-Drafts is at 
           http://datatracker.ietf.org/drafts/current/. 

           Internet-Drafts are draft documents valid for a maximum of six months and may be
           updated, replaced, or obsoleted by other documents at any time.  It is
           inappropriate to use Internet-Drafts as reference material or to cite them other
           than as "work in progress."

           
           This Internet-Draft will expire on May 4, 2020. 

        Copyright Notice 

           Copyright (c) 2017 IETF Trust and the persons identified as the document authors.  
           All rights reserved. 

         

           This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating 
           to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of 
           publication of this document.  Please review these documents carefully, as they 
           describe your rights and restrictions with respect to this document.  Code 
           Components extracted from this document must include Simplified BSD License text as 
           described in Section 4.e of the Trust Legal Provisions and are provided without 
           warranty as described in the Simplified BSD License. 

         
         Chan                      Expires May 4, 2020                         [Page 1] 


        Internet-Draft          draft-chan-idr-bgp-lu2-00.txt            November 2019 
            

         

        Table of Contents 

            
           1. Introduction................................................................2 
           2. Conventions used in this document...........................................3 
           3. Carrying Label Mapping Information with Color and Label Stack...............3 
              3.1. Color extended community for BGP Labeled Unicast.......................3 
              3.2. Color extended community for service prefixes..........................4 
           4. Uniqueness of path entries..................................................4 
           5. AIGP consideration..........................................................4 
           6. Explicit Withdraw of a <color, prefix>......................................4 
           7. Error Handling Procedure....................................................5 
           8. Security Considerations.....................................................5 
           9. IANA Considerations.........................................................5 
           10. References.................................................................5 
               10.1. Normative References.................................................5 
               10.2. Informative References...............................................5 
           11. Acknowledgments............................................................6 
            
        1. Introduction 

           The proposed protocol is aimed to solve interdomain traffic steering, with 
           different transport services in mind. One application is low latency service across 
           multiple IGP domains, which could scale up to 100k routers network. 

           BGP is a flexible protocol. With additional of color attribute to BGP Label 
           Unicast, a path with specific color would be given a meaning in application - a low 
           latency path, a fully protected path, or a path for diversity.  
Show full document text