From 6f5f5dd9f974a2cb2138a2685712aa90d8c34bdf Mon Sep 17 00:00:00 2001 From: almagia Date: Thu, 25 Oct 2018 16:46:59 +0200 Subject: [PATCH] Clean up of unused Yang files on behalf of TSC Change-Id: I46094568f73c6a7f3cf88de93036b899e0235708 --- models/yang/ietf-l2-topology.yang | 578 ------------------------- models/yang/ietf-network-topology.yang | 257 ----------- models/yang/ietf-network.yang | 153 ------- models/yang/odl-network-topology.yang | 359 --------------- 4 files changed, 1347 deletions(-) delete mode 100644 models/yang/ietf-l2-topology.yang delete mode 100644 models/yang/ietf-network-topology.yang delete mode 100644 models/yang/ietf-network.yang delete mode 100644 models/yang/odl-network-topology.yang diff --git a/models/yang/ietf-l2-topology.yang b/models/yang/ietf-l2-topology.yang deleted file mode 100644 index 9f572cb..0000000 --- a/models/yang/ietf-l2-topology.yang +++ /dev/null @@ -1,578 +0,0 @@ - -/* - * NO RW COPYRIGHT - * - */ - -module ietf-l2-topology { - yang-version 1; - namespace "urn:ietf:params:xml:ns:yang:ietf-l2-topology"; - prefix "l2t"; - - import ietf-network { - prefix "nw"; - } - - import ietf-network-topology { - prefix "nt"; - } - - import ietf-inet-types { - prefix "inet"; - } - - import ietf-yang-types { - prefix "yang"; - } - - organization "TBD"; - contact "I-D Editor: jie.dong@huawei.com"; - - description - "This module defines a basic model for - the layer-2 topology of a network"; - - revision "2015-06-23" { - description "Initial revision"; - reference "draft-ietf-i2rs-l2-network-topology-01"; - } - - /* - * Typedefs - */ - - typedef vlan { - type uint16 { - range "0..4095"; - } - description "VLAN ID"; - } - - typedef trill-nickname { - type uint16; - description "TRILL Nickname"; - } - - typedef flag-type { - type identityref { - base "flag-identity"; - } - description "Base type for flags"; - } - - typedef l2-network-event-type { - type enumeration { - enum "add" { - value 0; - description "An L2 node or link or termination-point - has been added"; - } - enum "remove" { - value 1; - description "An L2 node or link or termination-point - has been removed"; - } - enum "update" { - value 2; - description "An L2 node or link or termination-point - has been updated"; - } - } - description "l2 network event type for notifications"; - } // l2-topology-event-type - - - /* - * Features - */ - - feature VLAN { - description - "Indicates that the system supports the - vlan functions"; - } - - feature QinQ { - description - "Indicates that the system supports the - qinq functions"; - } - - feature PBB { - description - "Indicates that the device supports the - provider-backbone-bridging functions"; - } - - feature VPLS { - description - "Indicates that the device supports the - VPLS functions"; - reference "RFC 4761, RFC 4762"; - } - - feature TRILL { - description - "Indicates that the device supports the - TRILL functions"; - reference "RFC 6325"; - } - - feature VXLAN { - description - "Indicates that the device supports the - VXLAN functions"; - reference "RFC 7348"; - } - - /* - * Identities - */ - identity flag-identity { - description "Base type for flags"; - } - - identity encapsulation-type { - description - "Base identity from which specific encapsulation - types are derived."; - } - - identity eth-encapsulation-type { - base encapsulation-type; - description - "Base identity from which specific ethernet - encapsulation types are derived."; - - } - - identity ethernet { - base eth-encapsulation-type; - description - "native ethernet encapsulation"; - } - - identity vlan { - base eth-encapsulation-type; - description - "vlan encapsulation"; - } - - identity qinq { - base eth-encapsulation-type; - description - "qinq encapsulation"; - } - - identity pbb { - base eth-encapsulation-type; - description - "pbb encapsulation"; - } - - identity trill { - base eth-encapsulation-type; - description - "trill encapsulation"; - } - - identity vpls { - base eth-encapsulation-type; - description - "vpls encapsulation"; - } - - identity vxlan { - base eth-encapsulation-type; - description - "vxlan encapsulation"; - } - - identity frame-relay { - base encapsulation-type; - description - "Frame Relay encapsulation"; - } - - identity ppp { - base encapsulation-type; - description - "PPP encapsulation"; - } - - identity hdlc { - base encapsulation-type; - description - "HDLC encapsulation"; - } - - identity atm { - base encapsulation-type; - description - "Base identity from which specific ATM - encapsulation types are derived."; - - } - - identity pwe3 { - base encapsulation-type; - description - "Base identity from which specific pw - encapsulation types are derived."; - } - - - /* - * Groupings - */ - - - grouping l2-network-type { - description "Identify the topology type to be L2."; - container l2-network { - presence "indicates L2 Network"; - description - "The presence of the container node indicates - L2 Topology"; - } - } - - grouping l2-network-attributes { - description "L2 Topology scope attributes"; - container l2-network-attributes { - description "Containing L2 network attributes"; - leaf name { - type string; - description "Name of the L2 network"; - } - - leaf-list flag { - type flag-type; - description "L2 network flags"; - } - } - } - - grouping l2-node-attributes { - description "L2 node attributes"; - container l2-node-attributes { - description "Containing L2 node attributes"; - leaf name { - type string; - description "Node name"; - } - leaf description { - type string; - description "Node description"; - } - leaf-list management-address { - type inet:ip-address; - description "System management address"; - } - leaf management-vid { - if-feature VLAN; - type vlan; - description "System management VID"; - } - leaf-list nick-name { - if-feature TRILL; - type trill-nickname; - description "Nickname of the RBridge"; - } - leaf-list flag { - type flag-type; - description "Node operational flags"; - } - } - } // grouping l2-node-attributes - - - grouping l2-link-attributes { - description "L2 link attributes"; - container l2-link-attributes { - description "Containing L2 link attributes"; - leaf name { - type string; - description "Link name"; - } - leaf-list flag { - type flag-type; - description "Link flags"; - } - leaf rate { - type decimal64 { - fraction-digits 2; - } - description "Link rate"; - - } - leaf delay { - type uint32; - description "Link delay in microseconds"; - } - leaf-list srlg { - type uint32; - description - "List of Shared Risk Link Groups - this link belongs to."; - } - } - } // grouping l2-link-attributes - - grouping l2-termination-point-attributes { - description "L2 termination point attributes"; - container l2-termination-point-attributes { - description "Containing L2 TP attributes"; - leaf description { - type string; - description "Port description"; - } - - leaf maximum-frame-size { - type uint32; - description "Maximum frame size"; - } - - choice l2-termination-point-type { - description - "Indicates termination-point type - specific attributes"; - case ethernet { - leaf mac-address { - type yang:mac-address; - description "Interface MAC address"; - } - - leaf eth-encapsulation { - type identityref { - base eth-encapsulation-type; - } - description - "Encapsulation type of this - ternimation point."; - } - - leaf port-vlan-id { - if-feature VLAN; - type vlan; - description "Port VLAN ID"; - } - - list vlan-id-name { - if-feature VLAN; - key "vlan-id"; - description "Interface configured VLANs"; - leaf vlan-id { - type vlan; - description "VLAN ID"; - } - leaf vlan-name { - type string; - description "VLAN Name"; - } - } - } //case ethernet - - case legacy { - leaf encapsulation { - type identityref { - base encapsulation-type; - } - description - "Encapsulation type of this termination point."; - } - } //case legacy - - } //choice termination-point-type - - leaf tp-state { - type enumeration { - enum in-use { - value 0; - description - "the termination point is in forwarding state"; - } - enum blocking { - value 1; - description - "the termination point is in blocking state"; - } - enum down { - value 2; - description - "the termination point is in down state"; - } - enum others { - value 3; - description - "the termination point is in other state"; - } - } - config false; - description "State of the termination point"; - } - } - } // grouping l2-termination-point-attributes - -/*** grouping of network/node/link/tp leaf-refs ***/ - - grouping network-ref { - description - "Grouping for an absolute reference to a network topology - instance."; - leaf network-ref { - type leafref { - path "/nw:network/nw:network-id"; - } - description - "An absolute reference to a network topology instance."; - } - } - - grouping link-ref { - description - "Grouping for an absolute reference to a link instance."; - uses network-ref; - leaf link-ref { - type leafref { - path "/nw:network" - +"[nw:network-id = current()/../network-ref]" - +"/nt:link/nt:link-id"; - } - description - "An absolute reference to a link instance."; - } - } - - grouping node-ref { - description - "Grouping for an absolute reference to a node instance."; - uses network-ref; - leaf node-ref { - type leafref { - path "/nw:network" - +"[nw:network-id = current()/../network-ref]" - +"/nw:node/nw:node-id"; - } - description - "An absolute reference to a node instance."; - } - } - - grouping tp-ref { - description - "Grouping for an absolute reference to a termination point."; - uses node-ref; - leaf tp-ref { - type leafref { - path "/nw:network" - +"[nw:network-id = current()/../network-ref]" - +"/nw:node[nw:node-id = current()/../node-ref]" - +"/nt:termination-point/nt:tp-id"; - } - description - "Grouping for an absolute reference to a TP."; - } - } - - - /* - * Data nodes - */ - augment "/nw:network/nw:network-types" { - description - "Introduce new network type for L2 topology"; - uses l2-network-type; - } - - augment "/nw:network" { - /* RIFT-Change: when not to be used yet - when "nw:network-types/l2-network" { - description - "Augmentation parameters apply only for networks - with L2 topology"; - } - */ - description - "Configuration parameters for the L2 network - as a whole"; - uses l2-network-attributes; - } - - augment "/nw:network/nw:node" { - /* RIFT-Change: when not to be used yet - when "../nw:network-types/l2-network" { - description - "Augmentation parameters apply only for networks - with L2 topology"; - } - */ - description - "Configuration parameters for L2 at the node - level"; - uses l2-node-attributes; - } - - augment "/nw:network/nt:link" { - /* RIFT-Change: when not to be used yet - when "/nw:network/nw:network-types/l2-network" { - description - "Augmentation parameters apply only for networks - with L2 topology"; - } - */ - description "Augment L2 topology link information"; - uses l2-link-attributes; - } - - augment "/nw:network/nw:node/nt:termination-point" { - /* RIFT-Change: when not to be used yet - when "/nw:network/nw:network-types/l2-network" { - description - "Augmentation parameters apply only for networks - with L2 topology"; - } - */ - description - "Augment L2 topology termination point configuration"; - uses l2-termination-point-attributes; - } - - /* - * Notifications - */ - - notification l2-node-event { - description "Notification event for L2 node"; - leaf event-type { - type l2-network-event-type; - description "Event type"; - } - uses node-ref; - uses l2-network-type; - uses l2-node-attributes; - } - - notification l2-link-event { - description "Notification event for L2 link"; - leaf event-type { - type l2-network-event-type; - description "Event type"; - } - uses link-ref; - uses l2-network-type; - uses l2-link-attributes; - } - - notification l2-termination-point-event { - description "Notification event for L2 termination point"; - leaf event-type { - type l2-network-event-type; - description "Event type"; - } - uses tp-ref; - uses l2-network-type; - uses l2-termination-point-attributes; - } - -} // module l2-topology diff --git a/models/yang/ietf-network-topology.yang b/models/yang/ietf-network-topology.yang deleted file mode 100644 index e8f7c79..0000000 --- a/models/yang/ietf-network-topology.yang +++ /dev/null @@ -1,257 +0,0 @@ - -/* - * NO RW COPYRIGHT - * - */ - -module ietf-network-topology { - yang-version 1; - namespace "urn:ietf:params:xml:ns:yang:ietf-network-topology"; - prefix lnk; - - import ietf-inet-types { - prefix inet; - } - import ietf-network { - prefix nd; - } - - organization "TBD"; - contact - "WILL-BE-DEFINED-LATER"; - description - "This module defines a common base model for network topology, - augmenting the base network model with links to connect nodes, - as well as termination points to terminate links on nodes."; - - revision 2015-06-08 { - description - "Initial revision."; - reference "draft-ietf-i2rs-yang-network-topo-01"; - } - - typedef link-id { - type inet:uri; - description - "An identifier for a link in a topology. - The identifier may be opaque. - The identifier SHOULD be chosen such that the same link in a - real network topology will always be identified through the - same identifier, even if the model is instantiated in - separate datastores. An implementation MAY choose to capture - semantics in the identifier, for example to indicate the type - of link and/or the type of topology that the link is a part - of."; - } - - typedef tp-id { - type inet:uri; - description - "An identifier for termination points on a node. - The identifier may be opaque. - The identifier SHOULD be chosen such that the same TP in a - real network topology will always be identified through the - same identifier, even if the model is instantiated in - separate datastores. An implementation MAY choose to capture - semantics in the identifier, for example to indicate the type - of TP and/or the type of node and topology that the TP is a - part of."; - } - - grouping link-ref { - description - "References a link in a specific network."; - leaf link-ref { - type leafref { - path "/nd:network[nd:network-id=current()/../"+ - "nd:network-ref]/link/link-id"; - } - description - "A type for an absolute reference a link instance. - (This type should not be used for relative references. - In such a case, a relative path should be used instead.)"; - } - uses nd:network-ref; - } - - grouping tp-ref { - description - "References a termination point in a specific node."; - leaf tp-ref { - type leafref { - path "/nd:network[nd:network-id=current()/../"+ - "nd:network-ref]/nd:node[nd:node-id=current()/../"+ - "nd:node-ref]/termination-point/tp-id"; - } - description - "A type for an absolute reference to a termination point. - (This type should not be used for relative references. - In such a case, a relative path should be used instead.)"; - } - uses nd:node-ref; - } - - augment "/nd:network" { - description - "Add links to the network model."; - list link { - key "link-id"; - - description - "A Network Link connects a by Local (Source) node and - a Remote (Destination) Network Nodes via a set of the - nodes' termination points. - As it is possible to have several links between the same - source and destination nodes, and as a link could - potentially be re-homed between termination points, to - ensure that we would always know to distinguish between - links, every link is identified by a dedicated link - identifier. - Note that a link models a point-to-point link, not a - multipoint link. - Layering dependencies on links in underlay topologies are - not represented as the layering information of nodes and of - termination points is sufficient."; - container source { - description - "This container holds the logical source of a particular - link."; - leaf source-node { - type leafref { - // RIFT change: - path "../../../../nd:network/nd:node/nd:node-id"; - } - mandatory true; - description - "Source node identifier, must be in same topology."; - } - leaf source-tp { - type leafref { - // RIFT change: - path "../../../../nd:network/nd:node[nd:node-id=current()/../"+ - "source-node]/termination-point/tp-id"; - } - description - "Termination point within source node that terminates - the link."; - } - } - container destination { - description - "This container holds the logical destination of a - particular link."; - leaf dest-node { - type leafref { - // RIFT change - path "../../../../nd:network/nd:node/nd:node-id"; - } - mandatory true; - description - "Destination node identifier, must be in the same - network."; - } - leaf dest-tp { - type leafref { - // RIFT change: - path "../../../../nd:network/nd:node[nd:node-id=current()/../"+ - "dest-node]/termination-point/tp-id"; - } - description - "Termination point within destination node that - terminates the link."; - } - } - leaf link-id { - type link-id; - description - "The identifier of a link in the topology. - A link is specific to a topology to which it belongs."; - } - list supporting-link { - key "network-ref link-ref"; - description - "Identifies the link, or links, that this link - is dependent on."; - leaf network-ref { - type leafref { - // RIFT change: - path "../../../../nd:network/nd:supporting-network/nd:network-ref"; - } - description - "This leaf identifies in which underlay topology - supporting link is present."; - } - leaf link-ref { - type leafref { - path "/nd:network[nd:network-id=current()/.."+ - "/network-ref]/link/link-id"; - } - description - "This leaf identifies a link which is a part - of this link's underlay. Reference loops, in which - a link identifies itself as its underlay, either - directly or transitively, are not allowed."; - } - } - } - } - augment "/nd:network/nd:node" { - description - "Augment termination points which terminate links. - Termination points can ultimately be mapped to interfaces."; - list termination-point { - key "tp-id"; - description - "A termination point can terminate a link. - Depending on the type of topology, a termination point - could, for example, refer to a port or an interface."; - leaf tp-id { - type tp-id; - description - "Termination point identifier."; - } - list supporting-termination-point { - key "network-ref node-ref tp-ref"; - description - "The leaf list identifies any termination points that - the termination point is dependent on, or maps onto. - Those termination points will themselves be contained - in a supporting node. - This dependency information can be inferred from - the dependencies between links. For this reason, - this item is not separately configurable. Hence no - corresponding constraint needs to be articulated. - The corresponding information is simply provided by the - implementing system."; - leaf network-ref { - type leafref { - // RIFT change: - path "/nd:network/nd:node/nd:supporting-node/nd:network-ref"; - } - description - "This leaf identifies in which topology the - supporting termination point is present."; - } - leaf node-ref { - type leafref { - // RIFT change: - path "/nd:network/nd:node/nd:supporting-node/nd:node-ref"; - } - description - "This leaf identifies in which node the supporting - termination point is present."; - } - leaf tp-ref { - type leafref { - path "/nd:network[nd:network-id=current()/../"+ - "network-ref]/nd:node[nd:node-id=current()/../"+ - "node-ref]/termination-point/tp-id"; - } - description - "Reference to the underlay node, must be in a - different topology"; - } - } - } - } -} diff --git a/models/yang/ietf-network.yang b/models/yang/ietf-network.yang deleted file mode 100644 index 9308544..0000000 --- a/models/yang/ietf-network.yang +++ /dev/null @@ -1,153 +0,0 @@ - -/* - * NO RW COPYRIGHT - * - */ - -module ietf-network { - yang-version 1; - namespace "urn:ietf:params:xml:ns:yang:ietf-network"; - prefix nd; - - import ietf-inet-types { - prefix inet; - } - - organization "TBD"; - contact - "WILL-BE-DEFINED-LATER"; - description - "This module defines a common base model for a collection - of nodes in a network. Node definitions s are further used - in network topologies and inventories."; - - revision 2015-06-08 { - description - "Initial revision."; - reference "draft-ietf-i2rs-yang-network-topo-01"; - } - - typedef node-id { - type inet:uri; - description - "Identifier for a node."; - } - - typedef network-id { - type inet:uri; - description - "Identifier for a network."; - } - - grouping network-ref { - description - "Contains the information necessary to reference a network, - for example an underlay network."; - leaf network-ref { - type leafref { - path "/network/network-id"; - } - description - "Used to reference a network, for example an underlay - network."; - } - } - - grouping node-ref { - description - "Contains the information necessary to reference a node."; - leaf node-ref { - type leafref { - path "/network[network-id=current()/../network-ref]"+ - "/node/node-id"; - } - description - "Used to reference a node. - Nodes are identified relative to the network they are - contained in."; - } - uses network-ref; - } - - list network { - config false; - key "network-id"; - description - "Describes a network. - A network typically contains an inventory of nodes, - topological information (augmented through - network-topology model), as well as layering - information."; - container network-types { - description - "Serves as an augmentation target. - The network type is indicated through corresponding - presence containers augmented into this container."; - } - leaf network-id { - type network-id; - description - "Identifies a network."; - } - leaf server-provided { - type boolean; - config false; - description - "Indicates whether the information concerning this - particular network is populated by the server - (server-provided true, the general case for network - information discovered from the server), - or whether it is configured by a client - (server-provided true, possible e.g. for - service overlays managed through a controller)."; - } - list supporting-network { - key "network-ref"; - description - "An underlay network, used to represent layered network - topologies."; - - leaf network-ref { - type leafref { - path "/network/network-id"; - } - description - "References the underlay network."; - } - } - list node { - key "node-id"; - description - "The inventory of nodes of this network."; - leaf node-id { - type node-id; - description - "Identifies a node uniquely within the containing - network."; - } - list supporting-node { - key "network-ref node-ref"; - description - "Represents another node, in an underlay network, that - this node is supported by. Used to represent layering - structure."; - leaf network-ref { - type leafref { - path "../../../supporting-network/network-ref"; - } - description - "References the underlay network that the - underlay node is part of."; - } - leaf node-ref { - type leafref { - path "/network/node/node-id"; - } - description - "References the underlay node itself."; - } - } - } - } -} - diff --git a/models/yang/odl-network-topology.yang b/models/yang/odl-network-topology.yang deleted file mode 100644 index 9c7101d..0000000 --- a/models/yang/odl-network-topology.yang +++ /dev/null @@ -1,359 +0,0 @@ - -/* - * - * Copyright 2016 RIFT.IO Inc - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - * - */ - -module odl-network-topology { - yang-version 1; - namespace "urn:TBD:params:xml:ns:yang:network-topology"; - // replace with IANA namespace when assigned - prefix "nt"; - - import ietf-inet-types { prefix "inet"; } - - organization "TBD"; - - contact "WILL-BE-DEFINED-LATER"; - - description - "This module defines a model for the topology of a network. - Key design decisions are as follows: - A topology consists of a set of nodes and links. - Links are point-to-point and unidirectional. - Bidirectional connections need to be represented through - two separate links. - Multipoint connections, broadcast domains etc can be represented - through a hierarchy of nodes, then connecting nodes at - upper layers of the hierarchy."; - - revision 2013-10-21 { - description - "Initial revision."; - } - - typedef topology-id { - type inet:uri; - description - "An identifier for a topology."; - } - - typedef node-id { - type inet:uri; - description - "An identifier for a node in a topology. - The identifier may be opaque. - The identifier SHOULD be chosen such that the same node in a - real network topology will always be identified through the - same identifier, even if the model is instantiated in separate - datastores. An implementation MAY choose to capture semantics - in the identifier, for example to indicate the type of node - and/or the type of topology that the node is a part of."; - } - - - typedef link-id { - type inet:uri; - description - "An identifier for a link in a topology. - The identifier may be opaque. - The identifier SHOULD be chosen such that the same link in a - real network topology will always be identified through the - same identifier, even if the model is instantiated in separate - datastores. An implementation MAY choose to capture semantics - in the identifier, for example to indicate the type of link - and/or the type of topology that the link is a part of."; - } - - typedef tp-id { - type inet:uri; - description - "An identifier for termination points on a node. - The identifier may be opaque. - The identifier SHOULD be chosen such that the same TP in a - real network topology will always be identified through the - same identifier, even if the model is instantiated in separate - datastores. An implementation MAY choose to capture semantics - in the identifier, for example to indicate the type of TP - and/or the type of node and topology that the TP is a part of."; - } - - typedef tp-ref { - type leafref { - path "/network-topology/topology/node/termination-point/tp-id"; - } - description - "A type for an absolute reference to a termination point. - (This type should not be used for relative references. - In such a case, a relative path should be used instead.)"; - } - typedef topology-ref { - type leafref { - path "/network-topology/topology/topology-id"; - } - description - "A type for an absolute reference a topology instance."; - } - - typedef node-ref { - type leafref { - path "/network-topology/topology/node/node-id"; - } - description - - "A type for an absolute reference to a node instance. - (This type should not be used for relative references. - In such a case, a relative path should be used instead.)"; - } - - typedef link-ref { - type leafref { - path "/network-topology/topology/link/link-id"; - } - description - "A type for an absolute reference a link instance. - (This type should not be used for relative references. - In such a case, a relative path should be used instead.)"; - } - - grouping tp-attributes { - description - "The data objects needed to define a termination point. - (This only includes a single leaf at this point, used - to identify the termination point.) - Provided in a grouping so that in addition to the datastore, - the data can also be included in notifications."; - leaf tp-id { - type tp-id; - } - leaf-list tp-ref { - type tp-ref; - config false; - description - "The leaf list identifies any termination points that the - termination point is dependent on, or maps onto. - Those termination points will themselves be contained - in a supporting node. - This dependency information can be inferred from - the dependencies between links. For this reason, - this item is not separately configurable. Hence no - corresponding constraint needs to be articulated. - The corresponding information is simply provided by the - implementing system."; - } - } - - grouping node-attributes { - description - "The data objects needed to define a node. - The objects are provided in a grouping so that in addition to - the datastore, the data can also be included in notifications - as needed."; - - leaf node-id { - type node-id; - description - "The identifier of a node in the topology. - A node is specific to a topology to which it belongs."; - } - list supporting-node { - description - "This list defines vertical layering information for nodes. - It allows to capture for any given node, which node (or nodes) - in the corresponding underlay topology it maps onto. - A node can map to zero, one, or more nodes below it; - accordingly there can be zero, one, or more elements in the list. - If there are specific layering requirements, for example - specific to a particular type of topology that only allows - for certain layering relationships, the choice - below can be augmented with additional cases. - A list has been chosen rather than a leaf-list in order - to provide room for augmentations, e.g. for - statistics or priorization information associated with - supporting nodes."; - // This is not what was published in the initial draft, - // added topology-ref leaf and added it to the key - key "topology-ref node-ref"; - leaf topology-ref { - type topology-ref; - } - leaf node-ref { - type node-ref; - } - } - } - - grouping link-attributes { - // This is a grouping, not defined inline with the link definition itself, - // so it can be included in a notification, if needed - leaf link-id { - type link-id; - description - "The identifier of a link in the topology. - A link is specific to a topology to which it belongs."; - } - container source { - leaf source-node { - mandatory true; - type node-ref; - description - "Source node identifier, must be in same topology."; - } - leaf source-tp { - type tp-ref; - description - "Termination point within source node that terminates the link."; - - } - } - container destination { - leaf dest-node { - mandatory true; - type node-ref; - description - "Destination node identifier, must be in same topology."; - } - leaf dest-tp { - type tp-ref; - description - "Termination point within destination node that terminates the link."; - } - } - list supporting-link { - key "link-ref"; - leaf link-ref { - type link-ref; - } - } - } - - - container network-topology { - list topology { - description " - This is the model of an abstract topology. - A topology contains nodes and links. - Each topology MUST be identified by - unique topology-id for reason that a network could contain many - topologies. - "; - key "topology-id"; - leaf topology-id { - type topology-id; - description " - It is presumed that a datastore will contain many topologies. To - distinguish between topologies it is vital to have UNIQUE - topology identifiers. - "; - } - leaf server-provided { - type boolean; - config false; - description " - Indicates whether the topology is configurable by clients, - or whether it is provided by the server. This leaf is - - populated by the server implementing the model. - It is set to false for topologies that are created by a client; - it is set to true otherwise. If it is set to true, any - attempt to edit the topology MUST be rejected. - "; - } - container topology-types { - description - "This container is used to identify the type, or types - (as a topology can support several types simultaneously), - of the topology. - Topology types are the subject of several integrity constraints - that an implementing server can validate in order to - maintain integrity of the datastore. - Topology types are indicated through separate data nodes; - the set of topology types is expected to increase over time. - To add support for a new topology, an augmenting module - needs to augment this container with a new empty optional - container to indicate the new topology type. - The use of a container allows to indicate a subcategorization - of topology types. - The container SHALL NOT be augmented with any data nodes - that serve a purpose other than identifying a particular - topology type. - "; - } - list underlay-topology { - key "topology-ref"; - leaf topology-ref { - type topology-ref; - } - // a list, not a leaf-list, to allow for potential augmentation - // with properties specific to the underlay topology, - // such as statistics, preferences, or cost. - description - "Identifies the topology, or topologies, that this topology - is dependent on."; - } - - list node { - description "The list of network nodes defined for the topology."; - key "node-id"; - uses node-attributes; - must "boolean(../underlay-topology[*]/node[./supporting-nodes/node-ref])"; - // This constraint is meant to ensure that a referenced node is in fact - // a node in an underlay topology. - list termination-point { - description - - "A termination point can terminate a link. - Depending on the type of topology, a termination point could, - for example, refer to a port or an interface."; - key "tp-id"; - uses tp-attributes; - } - } - - list link { - description " - A Network Link connects a by Local (Source) node and - a Remote (Destination) Network Nodes via a set of the - nodes' termination points. - As it is possible to have several links between the same - source and destination nodes, and as a link could potentially - be re-homed between termination points, to ensure that we - would always know to distinguish between links, every link - is identified by a dedicated link identifier. - Note that a link models a point-to-point link, not a multipoint - link. - Layering dependencies on links in underlay topologies are - not represented as the layering information of nodes and of - termination points is sufficient. - "; - key "link-id"; - uses link-attributes; - must "boolean(../underlay-topology/link[./supporting-link])"; - // Constraint: any supporting link must be part of an underlay topology - must "boolean(../node[./source/source-node])"; - // Constraint: A link must have as source a node of the same topology - must "boolean(../node[./destination/dest-node])"; - // Constraint: A link must have as source a destination of the same topology - must "boolean(../node/termination-point[./source/source-tp])"; - // Constraint: The source termination point must be contained in the source node - must "boolean(../node/termination-point[./destination/dest-tp])"; - // Constraint: The destination termination point must be contained - // in the destination node - } - } - } -} -- 2.25.1