Programming Model for Protocol Oblivious Forwarding SDN Networks
draft-tian-sdnrg-pnpl-01

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INTERNET-DRAFT                                                   Y. Tian
Intended Status: Informational               Univ. Sci. & Tech. of China
Expires: December 21, 2018                                              
                                                                        
                                                                        
                                                                        
                                                           July 18, 2018

   Programming Model for Protocol Oblivious Forwarding SDN Networks 
                        draft-tian-sdnrg-pnpl-01

Abstract

   This document presents PNPL, a Software-Defined Networking (SDN)
   programming model for the Protocol Oblivious Forwarding (POF)
   network. POF is an SDN forwarding plane technology proposed by
   Huawei. A POF forwarding element (FE) does no need to understand the
   packet format, and can be programmed to support new forwarding
   protocols. PNPL enables user to define forwarding protocols and
   program the POF SDN network on the centralized control plane with
   algorithmic policies that are expressed with high-level programming
   languages.

Status of this Memo

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<Author>               Expires December 21, 2018                [Page 1]
INTERNET DRAFT              <Document Title>               July 18, 2018

Copyright and License Notice

   Copyright (c) 2018 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
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   described in the Simplified BSD License.

Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  4
   2  Programming Model . . . . . . . . . . . . . . . . . . . . . . .  4
   3  Protocol Specification Language . . . . . . . . . . . . . . . .  5
   4  Programming APIs for Protocol Oblivious Networking Algorithm  .  7
     4.1 Packet Operation API . . . . . . . . . . . . . . . . . . . .  7
     4.2 Net Topology Search API  . . . . . . . . . . . . . . . . . . 12
     4.3 Path Planning API  . . . . . . . . . . . . . . . . . . . . . 15
   5  Tracing Runtime System  . . . . . . . . . . . . . . . . . . . . 16
     5.1  Parse Graph and Parse Graph Instance  . . . . . . . . . . . 16
     5.2  Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
     5.3  Extended Tracing Tree . . . . . . . . . . . . . . . . . . . 16
     5.4  Forwarding Pipeline . . . . . . . . . . . . . . . . . . . . 17
     5.5  Optimization  . . . . . . . . . . . . . . . . . . . . . . . 17
   6  Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
   7 Security Considerations  . . . . . . . . . . . . . . . . . . . . 19
   8 IANA Considerations  . . . . . . . . . . . . . . . . . . . . . . 19
   9 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
   10  References . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     10.1  Normative References . . . . . . . . . . . . . . . . . . . 20
     10.2  Informative References . . . . . . . . . . . . . . . . . . 20
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 20

 

<Author>               Expires December 21, 2018                [Page 2]
INTERNET DRAFT              <Document Title>               July 18, 2018

1  Introduction

   Software-Defined Networking (SDN)[RFC7149] gives operators
   programmatic control over their networks. In SDN, the control plane
   is physically separate from the forwarding plane, and one control
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