YANG Data Model for Network Slice Per-Hop Definition
draft-bestbar-teas-yang-ns-phd-00
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Tarek Saad
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Vishnu Beeram
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2020-11-02
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draft-bestbar-teas-yang-ns-phd-00.txt:
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ietf-network-slice-phd@2020-11-02.yang:
pyang 2.4.0: pyang --verbose --ietf -p {libs} {model}:
# module search path: a/www/ietf-ftp/yang/rfcmod/:/a/www/ietf-ftp/yang/draftmod/:/a/www/ietf-ftp/yang/ianamod/:/a/www/ietf-ftp/yang/catalogmod/:.:/var/lib/wwwrun/yang/modules:/a/www/ietf-datatracker/7.24.0/env/share/yang/modules
# read ietf-network-slice-phd@2020-11-02.yang (CL)
# read /a/www/ietf-datatracker/7.24.0/env/share/yang/modules/ietf/ietf-inet-types.yang
# read /a/www/ietf-ftp/yang/catalogmod/ietf-inet-types@2020-07-06.yang
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# read /a/www/ietf-ftp/yang/rfcmod/ietf-interfaces@2018-02-20.yang
# read /a/www/ietf-ftp/yang/rfcmod/ietf-te-types@2020-06-10.yang
yanglint SO 1.6.7: yanglint --verbose -p {tmplib} -p {rfclib} -p {draftlib} -p {ianalib} -p {cataloglib} {model} -i:
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MPLS Working Group T. Saad
Internet-Draft V. Beeram
Intended status: Standards Track Juniper Networks
Expires: May 6, 2021 November 2, 2020
YANG Data Model for Network Slice Per-Hop Definition
draft-bestbar-teas-yang-ns-phd-00
Abstract
This document defines a YANG data model for the management of Network
Slice Per-Hop Definitions (Slice-PHDs) on network slicing capable
nodes in IP/MPLS networks.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 6, 2021.
Copyright Notice
Copyright (c) 2020 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
Saad & Beeram Expires May 6, 2021 [Page 1]
Internet-Draft NS PHD YANG Data Model November 2020
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 . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
1.2. Tree Structure . . . . . . . . . . . . . . . . . . . . . 3
2. Network Slice Per-Hop Definition Model . . . . . . . . . . . 3
2.1. Model Usage . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Model Structure . . . . . . . . . . . . . . . . . . . . . 3
2.3. Network Slice Per-Hop-Behaviors . . . . . . . . . . . . . 4
2.4. Network Slices . . . . . . . . . . . . . . . . . . . . . 4
2.4.1. Slice Resource Reservation . . . . . . . . . . . . . 5
2.4.2. Slice Selectors . . . . . . . . . . . . . . . . . . . 5
2.4.3. Slice Per-Hop-Behavior . . . . . . . . . . . . . . . 6
2.4.4. Slice Membership . . . . . . . . . . . . . . . . . . 6
2.5. YANG Module . . . . . . . . . . . . . . . . . . . . . . . 7
3. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 25
4. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 25
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 25
6. Security Considerations . . . . . . . . . . . . . . . . . . . 26
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1. Normative References . . . . . . . . . . . . . . . . . . 27
7.2. Informative References . . . . . . . . . . . . . . . . . 28
Appendix A. Complete Model Tree Structure . . . . . . . . . . . 28
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 31
1. Introduction
Network slicing in IP/MPLS networks can be realized by partitioning
the shared network resources in just the control plane or in just the
data plane or in both the control and data planes
[I-D.bestbar-teas-ns-packet]. The latter two approaches require the
forwarding engine on each network slicing capable node to identify
the traffic belonging to a specific slice and to apply the
corresponding Slice Per-Hop Behavior (Slice-PHB) that determines the
forwarding treatment of the packets belonging to the network slice.
The identification of the slice that the packet belongs to and the
corresponding forwarding treatment that needs to be applied to the
packet is dictated by the Network Slice Per-Hop Definition (Slice-
PHD) that is provisioned on each network slicing capable node.
Saad & Beeram Expires May 6, 2021 [Page 2]
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