Architecture and application scenario for fused service function chain
draft-dai-sfc-fused-architecture-and-scenario-00
Network Working Group J. Dai
INTERNET-DRAFT X. Wang
Intended Status: Informational J. Gao
Expires: June 28, 2021 Fiberhome/CICT
December 28, 2020
Architecture and application scenario for fused service function chain
draft-dai-sfc-fused-architecture-and-scenario-00
Abstract
This document discusses the architecture and application scenarios
of fused service function chain. Fused service function chain means
that two or more service function chains are fused to become a single
service function chain from the view of data plane and control plane.
Anyhow, some mechanism or methods need to be used when two or more
service function chains are fused to be a single service function
chain.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Terminology . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Architecture of Fused Service Function Chain . . . . . . . . . 4
2.1. General Architecture for Fused Service Functional Chain . . 4
2.2. Interface in the Fused Service Function Chain . . . . . . 6
2.3. OAM Architecture for Fused Service Function Chain . . . . 6
3 Application Scenarios of Fused Service Function Chain . . . . 7
3.1. F-SFC for Wide-area Enterprise Network . . . . . . . . . . 7
3.2. F-SFC in Cross-domain Scenario. . . . . . . . . . . . . . . 8
3.3. SFC as a Service in Cloud. . . . . . . . . . . . . . . . . 9
3.4. F-SFC in Mobile Edge Computing. . . . . . . . . . . . . . . 10
3.5. F-SFC in Distributed Active/Active Data Center. . . . . . . 11
3.6. F-SFC in Network Function Virtualization Context. . . . . . 12
4 Additional Requirements for Fused Service Function Chain. . . . 13
4.1 Function Aspect. . . . . . . . . . . . . . . . . . . . . 13
4.2 Performance Aspect . . . . . . . . . . . . . . . . . . . 13
4.3 Control Aspect . . . . . . . . . . . . . . . . . . . . . 13
4.4 Management Aspect . . . . . . . . . . . . . . . . . . . . 14
4.5 Other Aspect . . . . . . . . . . . . . . . . . . . . . . 14
5. Security Considerations . . . . . . . . . . . . . . . . . . . 14
6 IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 14
7 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 14
8 References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.1 Normative References . . . . . . . . . . . . . . . . . . . 15
8.2 Informative References . . . . . . . . . . . . . . . . . . 15
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 15
1. Introduction
The delivery of end-to-end services often requires various service
functions. These include traditional network service functions such
as firewalls and traditional IP Network Address Translators (NATs),
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