A Data Model for Network Topologies
draft-ietf-i2rs-yang-network-topo-04
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Network Working Group A. Clemm
Internet-Draft J. Medved
Intended status: Standards Track R. Varga
Expires: January 9, 2017 T. Tkacik
Cisco
N. Bahadur
Bracket Computing
H. Ananthakrishnan
Packet Design
X. Liu
Ericsson
July 8, 2016
A Data Model for Network Topologies
draft-ietf-i2rs-yang-network-topo-04.txt
Abstract
This document defines an abstract (generic) YANG data model for
network/service topologies and inventories. The model serves as a
base model which is augmented with technology-specific details in
other, more specific topology and inventory models.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
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This Internet-Draft will expire on January 9, 2017.
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document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Definitions and Acronyms . . . . . . . . . . . . . . . . . . 7
3. Model Structure Details . . . . . . . . . . . . . . . . . . . 7
3.1. Base Network Model . . . . . . . . . . . . . . . . . . . 7
3.2. Base Network Topology Model . . . . . . . . . . . . . . . 10
3.3. Extending the model . . . . . . . . . . . . . . . . . . . 11
3.4. Discussion and selected design decisions . . . . . . . . 12
3.4.1. Container structure . . . . . . . . . . . . . . . . . 12
3.4.2. Underlay hierarchies and mappings . . . . . . . . . . 12
3.4.3. Dealing with changes in underlay networks . . . . . . 13
3.4.4. Use of groupings . . . . . . . . . . . . . . . . . . 13
3.4.5. Cardinality and directionality of links . . . . . . . 13
3.4.6. Multihoming and link aggregation . . . . . . . . . . 14
3.4.7. Mapping redundancy . . . . . . . . . . . . . . . . . 14
3.4.8. Typing . . . . . . . . . . . . . . . . . . . . . . . 14
3.4.9. Representing the same device in multiple networks . . 14
3.5. Supporting client as well as server provided network
topology . . . . . . . . . . . . . . . . . . . . . . . . 15
3.6. Identifiers of string or URI type . . . . . . . . . . . . 17
4. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 17
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