In most networks, services are constructed as abstract sequences of SFs that represent SFCs. At a high level, an SFC is an abstracted view of a service that specifies the set of required SFs as well as the order in which they must be executed.

Tutorial

1. Layered Orchestration of Network and Security Services, Building a Security Resource Pool Oriented to SRv6 Standards

Publication URL: https://e.huawei.com/en/blogs/enterprise-networking/security/2023/srv6-resource-pool

2. SR based SFC Leveraging SR to Realize Transport Independent Service Function Chaining 2018

Publication URL: PDF - SR based SFC in MPLS Congress 2018

3. SFC Technology and Standards

Publication URL: PDF - SFC Technology and Standards

4.Transport Independent Service Function Chaining - MPLS Congress Paris 2018

Publication URL: PDF - Transport Independent Service Function Chaining

IETF

1. NSH and Segment Routing Integration for SFC

Publication URL: https://datatracker.ietf.org/doc/html/rfc9491

Introduction:

This document describes two application scenarios where Network Service Header (NSH) and Segment Routing (SR) techniques can be deployed together to support Service Function Chaining (SFC) in an efficient manner while maintaining separation of the service and transport planes as originally intended by the SFC architecture.

In November 2023, this document is published as Proposed Standard RFC indexed by 9491.

2. Service Programming with Segment Routing

Publication URL: https://datatracker.ietf.org/doc/html/draft-ietf-spring-sr-service-programming

Introduction:

This document defines data plane functionality required to implement service segments and achieve service programming in SR-enabled MPLS and IPv6 networks, as described in the Segment Routing architecture.

3. BGP Control Plane Extensions for Segment Routing based Service Chaining

Publication URL: https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-ls-sr-service-segments

Introduction:

The BGP Control Plane for the SR service-chaining solution is consistent with the BGP Control Plane for the topological Segment Routing Traffic Engineering (SR-TE) solution.

4. A Framework for Constructing Service Function Chaining Systems Based on Segment Routing

Publication URL: https://datatracker.ietf.org/doc/html/draft-li-spring-sr-sfc-control-plane-framework

Introduction:

This document describes a framework for constructing SFC based on Segment Routing. The document reviews the control plane solutions for route distribution of service function instance and service function path, and steering packets into a service function chain.

5. ISIS extension for SR SFC

Publication URL: https://datatracker.ietf.org/doc/draft-xu-lsr-isis-service-function-adv/

Introduction:

This document describes how to advertise service functions and their corresponding attributes (e.g., service function label) using IS-IS.

6. OSPF extension for SR SFC

Publication URL: https://datatracker.ietf.org/doc/draft-xu-lsr-ospf-service-function-adv/

Introduction:

This document describes how to advertise service functions and their corresponding attributes (e.g., segment ID) using OSPF. Here the OSPF means both OSPFv2 and OSPFv3.

7. Compressed SID (C-SID) for SRv6 SFC

Publication URL: https://datatracker.ietf.org/doc/draft-lh-spring-srv6-sfc-csid/

Introduction:

This document defines new behaviors for service segments with REPLACE-C-SID and NEXT-C-SID flavors to enable compressed SRv6 service programming.

8. Hierarchical Service Function Chaining with Segment Routing

Publication URL: https://datatracker.ietf.org/doc/draft-huang-spring-sr-hsfc/

Introduction:

This document specifies and categorizes the interactions between upper-level domains and lower-level sub-domains and appends SR-specific support in constructing hSFC.

9. Problem Statement, Use Cases, and Requirements of Hierarchical SFC with Segment Routing

Publication URL: https://datatracker.ietf.org/doc/draft-nh-sr-hsfc-usecases-requirements/

Introduction:

Hierarchical Service Function Chaining (hSFC) is a network service chaining method that utilizes a hierarchical structure to efficiently organize and manage service function chains, enhancing network performance and scalability. This document primarily describes the use case of hSFC, which is the security resource pool. It outlines the associated problem statement and requirements for the security resource pool. The document aims to assist in identifying candidate solution architectures and solutions.

CCSA

1. Technical Requirements For SRv6-based Security Capability Scheduling

2. Service Chaining for Cloud and Network Collaboration: Networking Technical Requirements and Test Specification

Demo

1. SRv6 Interop test report： SFC

Publication URL: PDF - SRv6 Interop test report SFC

Introduction:

This document specifies the details of the SRv6 interop test results between Huawei devices and Topsec Devices.

2. Japan Interop test Shownet： SRv6 based SFC

Publication URL: https://datatracker.ietf.org/meeting/106/materials/slides-106-spring-sessa-an-experiment-of-srv6-service-chaining-at-interop-tokyo-2019-shownet-00

OpenSource

1. SRv6 based SFC demo

Publication URL: Github - SRv6 SFC

Introduction:

This demo is implemented based on Linux. This page introduces the details of this implementation.

News

1. Excellent Innovative Application Case

Publication URL: https://www.cace.org.cn/NEWS/COUNT?a=3726

Introduction:

“Innovative Application of the First Integrated Security Service Chain in China” is granted “Excellent Innovative Application Case” by China Association of Communications Enterprises.

2. SID as a Service(SIDaaS) White Paper

Publication URL: PDF - SID as a Service

Introduction:

SID as a Service(SIDaaS) is published as white paper to promote the unified orchestration of computing power, services and networks.