Framework for Interface to Network Security Functions
RFC 8329
Document | Type | RFC - Informational (February 2018; No errata) | |
---|---|---|---|
Authors | Diego Lopez , Edward Lopez , Linda Dunbar , John Strassner , Rakesh Kumar | ||
Last updated | 2018-02-22 | ||
Replaces | draft-merged-i2nsf-framework | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Yoav Nir | ||
Shepherd write-up | Show (last changed 2017-10-11) | ||
IESG | IESG state | RFC 8329 (Informational) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Kathleen Moriarty | ||
Send notices to | "Adrian Farrel" <adrian@olddog.co.uk>, Yoav Nir <ynir.ietf@gmail.com>, Adrian Farrel <adrian@olddog.co.uk> | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | No IANA Actions |
Internet Engineering Task Force (IETF) D. Lopez Request for Comments: 8329 Telefonica I+D Category: Informational E. Lopez ISSN: 2070-1721 Curveball Networks L. Dunbar J. Strassner Huawei R. Kumar Juniper Networks February 2018 Framework for Interface to Network Security Functions Abstract This document describes the framework for Interface to Network Security Functions (I2NSF) and defines a reference model (including major functional components) for I2NSF. Network Security Functions (NSFs) are packet-processing engines that inspect and optionally modify packets traversing networks, either directly or in the context of sessions to which the packet is associated. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are candidates for any level of Internet Standard; see Section 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc8329. Lopez, et al. Informational [Page 1] RFC 8329 I2NSF Framework February 2018 Copyright Notice Copyright (c) 2018 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Conventions Used in This Document . . . . . . . . . . . . . . 3 2.1. Acronyms . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2. Definitions . . . . . . . . . . . . . . . . . . . . . . . 4 3. I2NSF Reference Model . . . . . . . . . . . . . . . . . . . . 5 3.1. I2NSF Consumer-Facing Interface . . . . . . . . . . . . . 6 3.2. I2NSF NSF-Facing Interface . . . . . . . . . . . . . . . 6 3.3. I2NSF Registration Interface . . . . . . . . . . . . . . 7 4. Threats Associated with Externally Provided NSFs . . . . . . 8 5. Avoiding NSF Ossification . . . . . . . . . . . . . . . . . . 9 6. The Network Connecting I2NSF Components . . . . . . . . . . . 10 6.1. Network Connecting I2NSF Users and the I2NSF Controller . 10 6.2. Network Connecting the I2NSF Controller and NSFs . . . . 10 6.3. Interface to vNSFs . . . . . . . . . . . . . . . . . . . 11 6.4. Consistency . . . . . . . . . . . . . . . . . . . . . . . 12 7. I2NSF Flow Security Policy Structure . . . . . . . . . . . . 13 7.1. Customer-Facing Flow Security Policy Structure . . . . . 13 7.2. NSF-Facing Flow Security Policy Structure . . . . . . . . 14 7.3. Differences from ACL Data Models . . . . . . . . . . . . 16 8. Capability Negotiation . . . . . . . . . . . . . . . . . . . 16 9. Registration Considerations . . . . . . . . . . . . . . . . . 17 9.1. Flow-Based NSF Capability Characterization . . . . . . . 17 9.2. Registration Categories . . . . . . . . . . . . . . . . . 18 10. Manageability Considerations . . . . . . . . . . . . . . . . 21 11. Security Considerations . . . . . . . . . . . . . . . . . . . 22 12. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 22 13. References . . . . . . . . . . . . . . . . . . . . . . . . . 22 13.1. Normative References . . . . . . . . . . . . . . . . . . 22 13.2. Informative References . . . . . . . . . . . . . . . . . 23 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 24 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 25Show full document text