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Hierarchical Service Function Chaining with Segment Routing

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Hongyi Huang , Xia Chen , Zhenbin Li
Last updated 2023-09-14 (Latest revision 2023-03-13)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


SFC offers ordered list of service functions applied to packets, include traditional network service functions and application- specific functions. hSFC defines a hierarchical architecture to deploy SFC in large networks, typically spanning multiple data centers or domains. This document complements RFC 8459 to enable SR-based hSFC. This document specifies and categorizes the interactions between upper- level domains and lower-level sub-domains and appends SR-specific support in constructing hSFC.


Hongyi Huang
Xia Chen
Zhenbin Li

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)