rfc9543v3.txt   rfc9543.txt 
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R. Rokui R. Rokui
Ciena Ciena
S. Homma S. Homma
NTT NTT
K. Makhijani K. Makhijani
Futurewei Futurewei
L. Contreras L. Contreras
Telefonica Telefonica
J. Tantsura J. Tantsura
Nvidia Nvidia
February 2024 March 2024
A Framework for Network Slices in Networks Built from IETF Technologies A Framework for Network Slices in Networks Built from IETF Technologies
Abstract Abstract
This document describes network slicing in the context of networks This document describes network slicing in the context of networks
built from IETF technologies. It defines the term "IETF Network built from IETF technologies. It defines the term "IETF Network
Slice" to describe this type of network slice and establishes the Slice" to describe this type of network slice and establishes the
general principles of network slicing in the IETF context. general principles of network slicing in the IETF context.
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traffic that will be bound to an SFC. These classification rules traffic that will be bound to an SFC. These classification rules
may be the same as or distinct from the identification rules used may be the same as or distinct from the identification rules used
to bind incoming traffic to the associated IETF Network Slice. to bind incoming traffic to the associated IETF Network Slice.
An NSC also generates a set of SFC forwarding policies that govern An NSC also generates a set of SFC forwarding policies that govern
how the traffic will be forwarded along a Service Function Path how the traffic will be forwarded along a Service Function Path
(SFP). (SFP).
* Identify the appropriate Classifiers in the underlay network and * Identify the appropriate Classifiers in the underlay network and
provision them with the classification rules. Likewise, an NSC provision them with the classification rules. Likewise, an NSC
communicates the SFC forwarding polices to the appropriate Service communicates the SFC forwarding policies to the appropriate
Function Forwarders (SFFs). Service Function Forwarders (SFFs).
The provider can enable an SFC data plane mechanism, such as those The provider can enable an SFC data plane mechanism, such as those
described in [RFC8300], [RFC8596], or [RFC9491]. described in [RFC8300], [RFC8596], or [RFC9491].
8. Isolation in IETF Network Slices 8. Isolation in IETF Network Slices
8.1. Isolation as a Service Requirement 8.1. Isolation as a Service Requirement
An IETF Network Slice Service customer may request that the IETF An IETF Network Slice Service customer may request that the IETF
Network Slice delivered to them is such that changes to other IETF Network Slice delivered to them is such that changes to other IETF
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