Information Model of NSFs Capabilities
draft-ietf-i2nsf-capability-05
I2NSF L. Xia
Internet Draft J. Strassner
Intended status: Standard Track Huawei
Expires: October 23, 2019 C. Basile
PoliTO
D. Lopez
TID
April 23, 2019
Information Model of NSFs Capabilities
draft-ietf-i2nsf-capability-05.txt
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Internet-Draft I2NSF Capability IM April 2019
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Abstract
This draft defines the concept of an NSF (Network Security Function)
capability, as well as its information model. Capabilities are a set
of features that are available from a managed entity, and are
represented as data that unambiguously characterizes an NSF.
Capabilities enable management entities to determine the set of
features from available NSFs that will be used, and simplify the
management of NSFs.
Table of Contents
1. Introduction ................................................ 3
2. Conventions used in this document ........................... 3
2.1. Acronyms ............................................... 4
3. Capability Information Model Design ......................... 4
3.1. Design Principles and ECA Policy Model Overview ........ 5
3.2. Relation with the External Information Model ........... 8
3.3. I2NSF Capability Information Model Theory of Operation . 9
3.3.1. I2NSF Capability Information Model ............... 11
3.3.2. The SecurityCapability class ..................... 14
3.4. Modelling NSF Features as Security Capabilities ....... 15
3.4.1. Matched Policy Rule .............................. 15
3.4.2. Conflict, Resolution Strategy and Default Action . 16
3.4.3. I2NSF Condition Clause Operator Types ............ 17
3.4.4. Uses of the capability information model ......... 19
3.4.5. A Syntax to Describe the Capability of an NSF .... 19
3.4.6. Capability Algebra ............................... 20
4. Considerations on the Practical Use of the CapIM ........... 21
5. Security Considerations .................................... 22
6. Contributors ............................................... 22
7. Acknowledgements ........................................... 23
8. References ................................................. 23
8.1. Normative References .................................. 23
8.2. Informative References ................................ 24
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1. Introduction
The rapid development of virtualized systems requires advanced
security protection in various scenarios. Examples include network
devices in an enterprise network, User Equipment in a mobile
network, devices in the Internet of Things, or residential access
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