--- /dev/null
+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 {
+ 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.";
+ }
+ }
+ }
+ }
+}