module ietf-network-topology {
    yang-version 1;
    namespace "ietf-vidya-topology";
    prefix lnk;

    import ietf-network {
        prefix nd;
    }

    revision 2015-12-08 {
        description
         "Initial revision.
          NOTE TO RFC EDITOR: Please replace the following reference
          to draft-ietf-i2rs-yang-network-topo-02 with
          RFC number when published (i.e. RFC xxxx).";
        reference
          "draft-ietf-i2rs-yang-network-topo-02.";
    }

    augment "/nd:networks/nd:network" {
        list link {
            key "link-id";
            container source {
                leaf source-node {
                    type string;
                    mandatory true;
                }
                leaf source-tp {
                    type string;
                }
            }
            leaf link-id {
                type string;
            }
        }
    }
}