The IESG has approved the following document: - 'Hierarchical Service Function Chaining (hSFC)' (draft-ietf-sfc-hierarchical-11.txt) as Informational RFC This document is the product of the Service Function Chaining Working Group. The IESG contact persons are Alvaro Retana, Deborah Brungard and Martin Vigoureux. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-sfc-hierarchical/ Technical Summary Instead of considering a single SFC control plane that can manage complete service paths from one end of the network to the other, the document adopts an approach that decomposes large networks into smaller domains operated by as many SFC sub-domains (under the same administrative entity). This approach is called: Hierarchical Service Function Chaining (hSFC) The goals of hSFC are to make a large-scale network easier to reason about, simpler to control and to support independent functional groups within large network operators. Working Group Summary Two WGLCs were made for this document. The second one was mainly to confirm that the comments raised during the first call are well addressed. There seems to be consensus in the working group that the document is ready for publication. Document Quality The Document intended status is Informational. There is no known implementation. Personnel Behcet Sarikaya is the Document Shepherd Martin Vigoureux is the Responsible AD