]> Huawei Technologies

yuchaode@huawei.com

Huawei Technologies

H1, Huawei Xiliu Beipo Village, Songshan Lake Dongguan Guangdong 523808 China zhenghaomian@huawei.com

Futurewei

aihuaguo@futurewei.com

Huawei Technologies

italo.busi@huawei.com

CAICT

xuyunbin@caict.ac.cn

China Mobile

zhaoyangyjy@chinamobile.com

Alef Edge

xufeng.liu.ietf@gmail.com

CCAMP Working Group This document describes a YANG data model for Ethernet networks when used either as a client-layer network of an underlay transport network (e.g., an Optical Transport Network (OTN)) or as a transport network itself.

Introduction A transport network is a server-layer network designed to provide connectivity services for a client-layer network to carry the client traffic transparently across the server-layer network resources. A transport network typically utilizes several different transport technologies such as the Optical Transport Networks (OTN) or packet transport such as provided by the MPLS-Transport Profile (MPLS-TP). An Ethernet network can be either a client-layer network of an underlay transport network or a transport network itself. This document describes a YANG data model for Ethernet networks when used as a client-layer network of an underlay transport network (e.g., an Optical Transport Network (OTN)) or as a transport network technology. The YANG model defined in this document augments from the TE topology YANG model defined in , and imports from the generic Ethernet types defined in . The YANG data model in this document conforms to the Network Management Datastore Architecture defined in .

Terminology and Notations The following terms are defined in and are not redefined here: client server augment data model data node The following terms are defined in and are not redefined here: configuration data state data The terminology for describing YANG data models is found in .

Tree Diagram A simplified graphical representation of the data model is used in of this document. The meaning of the symbols in these diagrams is defined in .

Prefix in Data Node Names In this document, the names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in . In this document, names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in . Prefix YANG module Reference yang ietf-yang-types etht-types ietf-eth-tran-types [RFCYYYY] nw ietf-network nt ietf-network-topology tet ietf-te-topology etht ietf-eth-te-topology RFCXXXX RFC Editor Note: Please replace YYYY and XXXX with the number assigned to the RFC once this draft becomes an RFC.

Ethernet Topology Model Overview This document aims to describe the data model for Ethernet topology. As a classic Traffic-engineering (TE) technology, Ethernet can provide packet switching in transport network . Therefore, the YANG module presented in this document augments from a more generic Traffic Engineered (TE) network topology data model, i.e., the ietf- te-topology, as specified in . In section 6 of , the guideline for augmenting TE topology model was provided, and in this draft, we augment the TE topology model to describe the topology in Ethernet network. Common types, identities and groupings defined in is reused in this document. describes a network topology model and provides the fundamental model for . However, this work is not directly augmenting . shows the augmentation relationship.

The entities and TE attributes, such as node, termination points and links, are still applicable for describing an Ethernet topology and the model presented in this document only specifies technology-specific attributes/information.

Attributes Augmentation Given the guidance for augmentation in , the following technology-specific augmentations need to be provided: A network-type to indicate that the TE topology is an Ethernet Topology, as follow:

TE Bandwidth Augmentations as described in . TE Label Augmentations as described in .

TE Bandwidth Augmentations Following the guidelines in , the model augments all the occurrences of the te-bandwidth container with the Ethernet technology specific attributes using the eth-bandwidth grouping defined in .

TE Label Augmentations The model augments all the occurrences of the label-restriction list with Ethernet technology specific attributes using the eth-label-restriction grouping defined in . Moreover, following the guidelines in , the model augments all the occurrences of the te-label container with the Ethernet technology specific attributes using the eth-label and eth-label-step groupings defined in .

YANG Tree for Ethernet Topology

Ethernet Topology YANG Code

WG List: Editor: Haomian Zheng Editor: Italo Busi Editor: Aihua Guo Editor: Yunbin Xu Editor: Yang Zhao Editor: Xufeng Liu "; description "This module defines a YANG data model for describing layer-2 Ethernet transport topologies. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2023 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Revised BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices. 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 (RFC 2119) (RFC 8174) when, and only when, they appear in all capitals, as shown here."; revision 2023-09-28 { description "Initial Revision"; reference "RFC XXXX: A YANG Data Model for Ethernet TE Topology"; // RFC Ed.: replace XXXX with actual RFC number, update date // information and remove this note } /* * Groupings */ grouping label-range-info { description "Ethernet technology-specific label range related information with a presence container indicating that the label range is an Ethernet technology-specific label range. This grouping SHOULD be used together with the eth-label and eth-label-step groupings to provide Ethernet technology-specific label information to the models which use the label-restriction-info grouping defined in the module ietf-te-types."; container ethernet-label-range { presence "Indicates the label range is an Ethernet label range. This container must not be present if there are other presence containers or attributes indicating another type of label range."; description "Ethernet-specific label range related information."; uses etht-types:eth-label-restriction; } } grouping eth-tran-topology-type { description "Identifies the Ethernet Transport topology type"; container eth-tran-topology { presence "indicates a topology type of Ethernet Transport Network."; description "Eth transport topology type"; } } grouping ltp-bandwidth-profiles { description "A grouping which represents the bandwidth profile(s) for the ETH LTP."; choice direction { description "Whether the bandwidth profiles are symmetrical or asymmetrical"; case symmetrical { description "The same bandwidth profile is used to describe the ingress and the egress bandwidth profile."; container ingress-egress-bandwidth-profile { description "The bandwith profile used in the ingress and egress direction."; uses etht-types:etht-bandwidth-profiles; } } case asymmetrical { description "Different ingress and egress bandwidth profiles can be specified."; container ingress-bandwidth-profile { description "The bandwidth profile used in the ingress direction."; uses etht-types:etht-bandwidth-profiles; } container egress-bandwidth-profile { description "The bandwidth profile used in the egress direction."; uses etht-types:etht-bandwidth-profiles; } } } } grouping eth-ltp-attributes { description "Ethernet transport Link Termination Point (LTP) attributes"; leaf ltp-mac-address { type yang:mac-address; description "The MAC address of the Ethernet LTP."; } leaf port-vlan-id { type etht-types:vlanid; description "The Port VLAN ID of the Ethernet LTP."; reference "IEEE 802.1Q: Virtual Bridged Local Area Networks"; } leaf maximum-frame-size { type uint16 { range "64 .. 65535"; } description "Maximum frame size"; reference "IEEE 802.1Q: Virtual Bridged Local Area Networks"; } uses ltp-bandwidth-profiles; } grouping svc-vlan-classification { description "Grouping defining the capabilities for VLAN classification."; leaf-list supported-tag-types { type etht-types:eth-tag-classify; description "List of VLAN tag types that can be used for the VLAN classification. In case VLAN classification is not supported, the list is empty."; } leaf vlan-bundling { type boolean; description "In case VLAN classification is supported, indicates whether VLAN bundling classification is also supported."; reference "MEF 10.3: Ethernet Services Attributes Phase 3"; } leaf vlan-range { type etht-types:vid-range-type; description "In case VLAN classification is supported, indicates the of available VLAN ID values."; } } grouping svc-vlan-push { description "Grouping defining the capabilities for VLAN push or swap operations."; leaf-list supported-tag-types { type etht-types:eth-tag-type; description "List of VLAN tag types that can be used to push or swap a VLAN tag. In case VLAN push/swap is not supported, the list is empty."; reference "IEEE 802.1Q: Virtual Bridged Local Area Networks"; } leaf vlan-range { type etht-types:vid-range-type; description "In case VLAN push/swap operation is supported, the range of available VLAN ID values."; } } grouping eth-svc-attributes { description "Ethernet Link Termination Point (LTP) service attributes."; container supported-classification { description "Service classification capability supported by the Ethernet Link Termination Point (LTP)."; leaf port-classification { type boolean; description "Indicates that the ETH LTP support port-based service classification."; } container vlan-classification { description "Service classification capabilities based on the VLAN tag(s) supported by the ETH LTP."; leaf vlan-tag-classification { type boolean; description "Indicates that the ETH LTP supports VLAN service classification."; } container outer-tag { description "Service classification capabilities based on the outer VLAN tag, supported by the ETH LTP."; uses svc-vlan-classification; } container second-tag { description "Service classification capabilities based on the second VLAN tag, supported by the ETH LTP."; leaf second-tag-classification { type boolean; must ". = 'false' or " + "../../vlan-tag-classification = 'true'" { description "VLAN service classification based on the second VLAN tag can be supported only when VLAN service classification"; } description "Indicates that the ETH LTP support VLAN service classification based on the second VLAN tag."; } uses svc-vlan-classification; } } } container supported-vlan-operations { description "Reports the VLAN operations supported by the ETH LTP."; leaf asymmetrical-operations { type boolean; description "Indicates whether the ETH LTP supports also asymmetrical VLAN operations.It is assumed that symmetrical VLAN operations are alwyas supported."; } leaf transparent-vlan-operations { type boolean; description "Indicates that the ETH LTP supports transparent operations."; } container vlan-pop { description "Indicates VLAN pop or swap operations capabilities."; leaf vlan-pop-operations { type boolean; description "Indicates that the ETH LTP supports VLAN pop or swap operations."; } leaf max-pop-tags { type uint8 { range "1..2"; } description "Indicates the maximum number of tags that can be popped/swapped."; } } container vlan-push { description "Indicates VLAN push or swap operations capabilities."; leaf vlan-push-operation { type boolean; description "Indicates that the ETH LTP supports VLAN push or swap operations."; } container outer-tag { description "Indicates the supported VLAN operation capabilities on the outer VLAN tag."; uses svc-vlan-push; } container second-tag { description "Indicates the supported VLAN operation capabilities on the second VLAN tag."; leaf push-second-tag { type boolean; description "Indicates that the ETH LTP supports VLAN push or swap operations for the second VLAN tag."; } uses svc-vlan-push; } } } } /* * Data nodes */ augment "/nw:networks/nw:network/nw:network-types/" + "tet:te-topology" { description "Augment network types to include ETH transport newtork"; uses eth-tran-topology-type; } augment "/nw:networks/nw:network/nw:node/tet:te" + "/tet:te-node-attributes" { when "../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augment only for Ethernet transport network."; } description "Augment TE node attributes."; container eth-node { presence "The TE node is an Ethernet node."; description "Presence container used only to indicate that the TE node is an Ethernet node."; } } augment "/nw:networks/nw:network/nt:link" { when "../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augment only for Ethernet transport network."; } description "Augment link configuration"; container eth-svc { presence "When present, indicates that the Link supports Ethernet client signals."; description "Presence container used only to indicate that the link supports Ethernet client signals."; } } augment "/nw:networks/nw:network/nw:node/nt:termination-point" { when "../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augment only for Ethernet transport network."; } description "Augment ETH LTP attributes"; container eth-svc { presence "When present, indicates that the Link Termination Point (LTP) supports Ethernet client signals."; description "ETH LTP Service attributes."; uses eth-svc-attributes; } container eth-link-tp { description "Attributes of the Ethernet Link Termination Point (LTP)."; uses eth-ltp-attributes; } } /* * Augment TE bandwidth */ augment "/nw:networks/nw:network/nw:node/nt:termination-point/" + "tet:te/" + "tet:interface-switching-capability/tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum LSP TE bandwidth for the link termination point (LTP)."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE bandwidth path constraints of the TE node connectivity matrices."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE bandwidth path constraints of the connectivity matrix entry."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE bandwidth path constraints of the TE node connectivity matrices information source."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE bandwidth path constraints of the connectivity matrix entry information source"; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:client-layer-adaptation/tet:switching-capability/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment client TE bandwidth of the tunnel termination point (TTP)"; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/tet:path-constraints/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE bandwidth path constraints for the TTP Local Link Connectivities."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/tet:path-constraints/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE bandwidth path constraints for the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:interface-switching-capability/tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum LSP TE bandwidth for the TE link."; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum TE bandwidth for the TE link"; uses etht-types:eth-bandwidth; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:max-resv-link-bandwidth/" + "tet:te-bandwidth" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum reservable TE bandwidth for the TE link"; uses etht-types:eth-bandwidth; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:unreserved-bandwidth/" + "tet:te-bandwidth" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment unreserved TE bandwidth for the TE Link"; uses etht-types:eth-bandwidth; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:interface-switching-capability/" + "tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum LSP TE bandwidth for the TE link information source"; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum TE bandwidth for the TE link information source"; uses etht-types:eth-bandwidth; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:max-resv-link-bandwidth/" + "tet:te-bandwidth" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment maximum reservable TE bandwidth for the TE link information-source"; uses etht-types:eth-bandwidth; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:unreserved-bandwidth/" + "tet:te-bandwidth" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment unreserved TE bandwidth of the TE link information source"; uses etht-types:eth-bandwidth; } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:interface-switching-capability/" + "tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { description "Augment maximum LSP TE bandwidth of the TE link template"; case eth { uses etht-types:eth-bandwidth; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth" { description "Augment maximum TE bandwidth the TE link template"; uses etht-types:eth-bandwidth; } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:max-resv-link-bandwidth/" + "tet:te-bandwidth" { description "Augment maximum reservable TE bandwidth for the TE link template."; uses etht-types:eth-bandwidth; } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:unreserved-bandwidth/" + "tet:te-bandwidth" { description "Augment unreserved TE bandwidth the TE link template"; uses etht-types:eth-bandwidth; } /* * Augment TE label range information */ augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the TE node connectivity matrices."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the source LTP of the connectivity matrix entry."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the destination LTP of the connectivity matrix entry."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the TE node connectivity matrices information source."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the source LTP of the connectivity matrix entry information source."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the destination LTP of the connectivity matrix entry information source."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the TTP Local Link Connectivities."; uses label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the TTP Local Link Connectivity entry."; uses label-range-info; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the TE link."; uses label-range-info; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range information for the TE link information source."; uses label-range-info; } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction" { description "Augment TE label range information for the TE link template."; uses label-range-info; } /* * Augment TE label. */ augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/" + "tet:label-restriction/tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/" + "tet:label-restriction/tet:label-step/" + "tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the TE node connectivity matrices"; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:underlay/tet:primary-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:underlay/tet:backup-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the computed path route objects of the TE node connectivity matrices"; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the source LTP of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the source LTP of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/" + "tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the source LTP of the connectivity matrix entry."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the destination LTP of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the destination LTP of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/" + "tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the destination LTP of the connectivity matrix entry."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:primary-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:backup-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:optimizations/" + "tet:algorithm/tet:metric/tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:optimizations/" + "tet:algorithm/tet:metric/tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the computed path route objects of the connectivity matrix entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the TE node connectivity matrices information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the TE node connectivity matrices information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the TE node connectivity matrices information source."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the TE node connectivity matrices of the information source entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the TE node connectivity matrices of the information source entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TE node connectivity matrices information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TE node connectivity matrices information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the computed path route objects of the TE node connectivity matrices information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the source LTP of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the source LTP of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the source LTP of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the destination LTP of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the destination LTP of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the destination LTP of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the computed path route objects of the connectivity matrix entry information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/" + "tet:te-label/tet:technology"{ when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/" + "tet:technology"{ when "../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the computed path route objects of the TTP Local Link Connectivities."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the computed path route objects of the TTP Local Link Connectivity entry."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay primary path of the TE link."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label hop for the underlay backup path of the TE link."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the TE link."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the TE link."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the TE link."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range start for the TE link information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range end for the TE link information source."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "etht:eth-tran-topology" { description "Augmentation parameters apply only for networks with Ethernet topology type."; } description "Augment TE label range step for the TE link information source."; case eth { uses etht-types:eth-label-step; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { description "Augment TE label hop for the underlay primary path of the TE link template."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { description "Augment TE label hop for the underlay backup path of the TE link template."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { description "Augment TE label range start for the TE link template."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { description "Augment TE label range end for the TE link template."; case eth { uses etht-types:eth-label; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { description "Augment TE label range step for the TE link template."; case eth { uses etht-types:eth-label-step; } } } ]]>

IANA Considerations It is proposed that IANA should assign new URIs from the "IETF XML Registry" as follows:

This document registers following YANG modules in the YANG Module Names registry .

RFC Editor: Please replace XXXX with the RFC number assigned to this document.

Manageability Considerations TBD.

Security Considerations The data following the model defined in this document is exchanged via, for example, the interface between an orchestrator and a transport network controller. The security concerns mentioned in for using ietf-te-topology.yang model also applies to this document. The YANG module defined in this document can be accessed via the RESTCONF protocol defined in , or maybe via the NETCONF protocol . There are a number of data nodes defined in the YANG module which are writable/creatable/deletable (i.e., config true, which is the default). These data nodes may be considered sensitive or vulnerable in some network environments. Write operations (e.g., POST) to these data nodes without proper protection can have a negative effect on network operations. Editors note: to list specific subtrees and data nodes and their sensitivity/vulnerability.

ITU-T Recommendation G.8021 This document defines a YANG data model for representing, retrieving, and manipulating Traffic Engineering (TE) Topologies. The model serves as a base model that other technology-specific TE topology models can augment. Huawei Technologies Futurewei Huawei Technologies Cisco Huawei Technologies A transport network is a server-layer network to provide connectivity services to its client. The topology and tunnel information in the transport layer has already been defined by generic Traffic- engineered models and technology-specific models (e.g., OTN, WSON). However, how the client signals are accessing to the network has not been described. These information is necessary to both client and provider. This draft describes how the client signals are carried over transport network and defines YANG data models which are required during configuration procedure. More specifically, several client signal (of transport network) models including ETH, STM-n, FC and so on, are defined in this draft. Datastores are a fundamental concept binding the data models written in the YANG data modeling language to network management protocols such as the Network Configuration Protocol (NETCONF) and RESTCONF. This document defines an architectural framework for datastores based on the experience gained with the initial simpler model, addressing requirements that were not well supported in the initial model. This document updates RFC 7950. YANG is a data modeling language used to model configuration data, state data, Remote Procedure Calls, and notifications for network management protocols. This document describes the syntax and semantics of version 1.1 of the YANG language. YANG version 1.1 is a maintenance release of the YANG language, addressing ambiguities and defects in the original specification. There are a small number of backward incompatibilities from YANG version 1. This document also specifies the YANG mappings to the Network Configuration Protocol (NETCONF). The Network Configuration Protocol (NETCONF) defined in this document provides mechanisms to install, manipulate, and delete the configuration of network devices. It uses an Extensible Markup Language (XML)-based data encoding for the configuration data as well as the protocol messages. The NETCONF protocol operations are realized as remote procedure calls (RPCs). This document obsoletes RFC 4741. [STANDARDS-TRACK] This document introduces a collection of common data types to be used with the YANG data modeling language. This document obsoletes RFC 6021. This document defines an abstract (generic, or base) YANG data model for network/service topologies and inventories. The data model serves as a base model that is augmented with technology-specific details in other, more specific topology and inventory data models. This document describes an IANA maintained registry for IETF standards which use Extensible Markup Language (XML) related items such as Namespaces, Document Type Declarations (DTDs), Schemas, and Resource Description Framework (RDF) Schemas. This document describes an HTTP-based protocol that provides a programmatic interface for accessing data defined in YANG, using the datastore concepts defined in the Network Configuration Protocol (NETCONF). This document captures the current syntax used in YANG module tree diagrams. The purpose of this document is to provide a single location for this definition. This syntax may be updated from time to time based on the evolution of the YANG language.

Acknowledgments We would like to thank Igor Bryskin and Daniel King for their comments and discussions.

Contributors Huawei Technologies

liuzhe123@huawei.com

Nokia

sergio.belotti@nokia.com

Shanghai Bell

yingxi.yao@nokia-sbell.com

Huawei Technologies

giuseppe.fioccola@huawei.com

China Unicom

zhengyanlei@chinaunicom.cn