Differential Computing Resource Reservation
draft-liu-coin-differential-reservation-00

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Computing in Network Research Group                               P. Liu
Internet-Draft                                                    H. Yao
Intended status: Informational                                   L. Geng
Expires: January 11, 2021                                   China Mobile
                                                           July 10, 2020

              Differential Computing Resource Reservation
               draft-liu-coin-differential-reservation-00

Abstract

   Computing in the network may require the embedded computing
   capability in the network device, such as gateway, switch, etc, and
   there might be so much distributed computing task in the network.
   Some new applications like AR/VR, motion control put forward higher
   demand of network than before, and AI is also considered to be used
   in the app and network.

   In order to satisfy their demands, network may not only need to
   reserve bandwidth resource, but also reserve computing resource.
   This document analyzes the requirements of Serial distributed
   computing model and give some reference solutions.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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
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   This Internet-Draft will expire on January 11, 2021.

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Copyright Notice

   Copyright (c) 2020 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   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.

Table of Contents

   1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Existing Protocol . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Resource Reservation Protocol . . . . . . . . . . . . . .   3
     2.2.  Path Computation Element Protocol . . . . . . . . . . . .   3
   3.  Problems of Resource Reservation  . . . . . . . . . . . . . .   4
   4.  Reference Method  . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Distributed Resource Reservation  . . . . . . . . . . . .   5
     4.2.  Centralized Resource Reservation  . . . . . . . . . . . .   6
       4.2.1.  PCEP  . . . . . . . . . . . . . . . . . . . . . . . .   7
       4.2.2.  Netconf/Yang  . . . . . . . . . . . . . . . . . . . .   7
   5.  Conclusion  . . . . . . . . . . . . . . . . . . . . . . . . .   8
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Overview

   From cloud computing to edge computing, computing power is
   distributed to the customer side.  In the future network and
   computing convergence system, computing power will be distributed as
   ubiquitous endogenous resources in each node of the network.  The
   user's request can be satisfied by calling the nearest node resource,
   which is no longer limited to a specific node.

   Resource reservation is usually used to guarantee the QoS of specific
   application traffic.  The reservation of network resources is same in
   an end-to-end path, which means the reserved bandwidth resources will
   not change from the client to the server, but computing is different.
   Distributed computing will bring different computing power, and
   different resources need to be reserved for different nodes.  For

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