Building blocks for Slicing in Segment Routing Network
draft-ali-spring-network-slicing-building-blocks-01

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00
• 01

SPRING Working Group                                              Z. Ali
Internet-Draft                                               C. Filsfils
Intended status: Standards Track                            P. Camarillo
Expires: September 9, 2019                                 Cisco Systems
                                                                D. Voyer 
                                                             Bell Canada
                                                          March 10, 2019

                 Building blocks for Slicing in Segment Routing Network 
                draft-ali-spring-network-slicing-building-blocks-01.txt 

          Abstract 
           
           
          This document describes how to build network slice using the 
          Segment Routing based technology. It explains how the existing  
          building blocks specified for the Segment Routing can be used for 
          this purpose.  
            
          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." 
           
          Copyright Notice 
           
          Copyright (c) 2019 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. 
           

                                                                  [Page 1] 
           


          Internet-Draft      Network Slicing Using SR 

          Table of Contents 

             1  Introduction...................................................2 
             2  Segment Routing Policy.........................................3 
                2.1  Flex-Algorithm Based SR Policies .........................4 
                2.2  On-demand SR policy ......................................5 
                2.3  Automatic Steering .......................................6 
                2.4  Inter-domain Considerations ..............................6 
             3  TI-LFA and Microloop Avoidance.................................7 
             4  SR VPN.........................................................7 
             5  Stateless Service Programming..................................7 
             6  Operations, Administration, and Maintenance (OAM)..............8 
             7  QoS............................................................8 
             8  Orchestration at the Controller................................9 
             9  Illustration...................................................9 
             10   Security Considerations .....................................9 
             11   IANA Considerations ........................................10 
             12   References .................................................10 
                12.1   Normative References ..................................10 
                7.2...........................................................10 
             13   Acknowledgments ............................................10 
             14   Contributors ...............................................10 
           

          1  Introduction 
           
          As more and more Service Providers and Enterprises operate a 
          single network infrastructure to support an ever-increasing 
          number of services, the ability to custom fit transport to 
          application needs is critically important. This includes 
          creating network slices with different characteristics can 
          coexist on top of the shared network infrastructure.  
           
          Network Slicing is meant to create (end-to-end) partitioned 
          network infrastructure that can be used to provide