< draft-xu-sfc-hierarchical-orchestration-00.txt   draft-xu-sfc-hierarchical-orchestration-01.txt >
Service Function Chaining Qi Xu Service Function Chaining Qi Xu
Internet Draft Huachun Zhou Internet Draft Huachun Zhou
Intended status: Informational Taixin Li Intended status: Informational Taixin Li
Expires: October 2017 Guanglei Li Expires: April 2018 Guanglei Li
Guanwen Li Guanwen Li
Beijing Jiaotong University Beijing Jiaotong University
April 18, 2017 October 11, 2017
A Method for Service Orchestration in hSFC A Method for Service Orchestration in hSFC
draft-xu-sfc-hierarchical-orchestration-02.txt draft-xu-sfc-hierarchical-orchestration-01.txt
Status of this Memo Status of this Memo
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coordinated orchestration by the translation of H-SFC and I-SFC to coordinated orchestration by the translation of H-SFC and I-SFC to
forward traffic between networks in Hierarchical SFC. forward traffic between networks in Hierarchical SFC.
Table of Contents Table of Contents
1. Introduction ................................................ 2 1. Introduction ................................................ 2
1.1. Assumptions ............................................ 3 1.1. Assumptions ............................................ 3
1.2. Requirements Language .................................. 3 1.2. Requirements Language .................................. 3
2. Terminology ................................................. 3 2. Terminology ................................................. 3
3. Hierarchical Service Orchestration .......................... 3 3. Hierarchical Service Orchestration .......................... 3
3.1. East-west interface .................................... 4 3.1. East-west interface..................................... 4
3.1.1. C5: Interface between SFC Control Planes .......... 4 3.1.1. C5: Interface between SFC Control Planes........... 4
3.1.2. Interface between SFC Control Planes and IBN ...... 4 ........ 5 3.1.2. Interface between SFC Control Planes and IBN....... 5
3.2. Hierarchical service orchestration ..................... 5 3.2. Hierarchical service orchestration ..................... 5
4. Metadata Consideration ...................................... 5 4. Metadata Consideration ...................................... 5
5. Security Considerations ..................................... 5 5. Security Considerations ..................................... 5
6. IANA Considerations ......................................... 5 6. IANA Considerations ......................................... 5
7. References .................................................. 6 7. References .................................................. 5
7.1. Normative References ................................... 6 7.1. Normative References ................................... 5
7.2. Informative References ................................. 6 7.2. Informative References ................................. 6
Authors' Addresses ............................................. 7 Authors' Addresses ............................................. 7
1. Introduction 1. Introduction
Hierarchical SFC is a network architecture for supporting service Hierarchical SFC is a network architecture for supporting service
function chains across multiple geographically dispersed networks. function chains across multiple geographically dispersed networks.
Hierarchical SFC is described in detail in [I.D. dolson-sfc- Hierarchical SFC is described in detail in [I.D. dolson-sfc-
hierarchical] and [I.D.ao-sfc-for-dc-interconnect], and is not hierarchical] and [I.D.ao-sfc-for-dc-interconnect], and is not
repeated here. repeated here.
In hSFC, SFs in top-domain can be logical and composed of several In hSFC, SFs in top-domain can be logical and composed of several
more refined SFs in sub-domain. Therefore, it is necessary to check more refined SFs in sub-domain. Therefore, it is necessary to check
the availability of SFs especially those logical SFs in the the availability of those logical SFs in the procedure of
procedure of orchestration. orchestration.
This document proposes that adding an east-west interface for This document proposes that adding an east-west interface for
coordination among different control planes of separate SFC-enabled coordination among different control planes of separate SFC-enabled
domains so to supporting hierarchical service orchestration. domains so to supporting hierarchical service orchestration.
1.1. Assumptions 1.1. Assumptions
The following assumptions are made: The following assumptions are made:
o A Hierarchical SFC-enabled network has multiple level network o A Hierarchical SFC-enabled network has multiple level network
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