An MPLS-Based Forwarding Plane for Service Function Chaining, June 2019
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- PROPOSED STANDARD
- A. Farrel
- mpls (rtg)
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This document describes how Service Function Chaining (SFC) can be achieved in an MPLS network by means of a logical representation of the Network Service Header (NSH) in an MPLS label stack. That is, the NSH is not used, but the fields of the NSH are mapped to fields in the MPLS label stack. This approach does not deprecate or replace the NSH, but it acknowledges that there may be a need for an interim deployment of SFC functionality in brownfield networks.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.