BGP NLRI App Meta Data for 5G Edge Computing Service
draft-dunbar-idr-5g-edge-compute-app-meta-data-01

Document Type Active Internet-Draft (individual)
Authors Linda Dunbar  , Kausik Majumdar  , Haibo Wang 
Last updated 2020-11-02
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Network Working Group                                   L. Dunbar
Internet Draft                                          Futurewei
Intended status: Standard                             K. Majumdar
Expires: May 2, 2021
CommScope
                                                          H. Wang
                                                           Huawei

                                                 November 2, 2020

        BGP NLRI App Meta Data for 5G Edge Computing Service
         draft-dunbar-idr-5g-edge-compute-app-meta-data-01

Abstract

   This draft describes a new BGP Network Layer Reachability
   Information (BGP NLRI) Path Attribute, AppMetaData, that can
   distribute the 5G Edge Computing App running status and
   environment, so that other routers in the 5G Local Data
   Network can make intelligent decision on optimized forwarding
   of flows from UEs. The goal is to improve latency and
   performance for 5G Edge Computing services.

   The extension enables a feature, called soft anchoring, which
   makes one Edge Computing Server at one specific location to be
   more preferred than others for the same application to receive
   packets from a specific source (UE).

Status of this Memo

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   provisions of BCP 78 and BCP 79.

   This Internet-Draft is submitted in full conformance with the
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Internet-Draft    AppMetaData NLRI for 5G EC Service

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Table of Contents

   1. Introduction.............................................. 3
      1.1. 5G Edge Computing Background......................... 3
      1.2. Problem#1: ANYCAST in 5G EC Environment.............. 5
      1.3. Problem #2: Unbalanced Anycast Distribution due to UE
      Mobility.................................................. 6

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Internet-Draft    AppMetaData NLRI for 5G EC Service

      1.4. Problem 3: Application Server Relocation............. 6
   2. Conventions used in this document......................... 7
   3. Usage of App Meta Data for 5G Edge Computing.............. 8
      3.1. Overview............................................. 8
      3.2. IP Layer Metrics to Gauge Application Behavior....... 9
      3.3. To Equalize among Multiple ANYCAST Locations........ 10
      3.4. BGP Protocol Extension to advertise Load & Capacity. 10
   4. The NLRI Path Attribute for App Meta Data................ 11
      4.1. Load Measurement sub-TLV format..................... 13
      4.2. Capacity Index sub-TLV format....................... 14
      4.3. The Site Preference Index sub-TLV format............ 14
   5. Soft Anchoring of an ANYCAST Flow........................ 15
   6. Manageability Considerations............................. 17
   7. Security Considerations.................................. 17
   8. IANA Considerations...................................... 17
   9. References............................................... 17
      9.1. Normative References................................ 17
      9.2. Informative References.............................. 17
   10. Acknowledgments......................................... 18
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