module isis-topology {
    yang-version 1;
    namespace "urn:TBD:params:xml:ns:yang:network:isis-topology";

    prefix "isis";
    import network-topology { prefix nt; revision-date 2013-10-21; }
    import l3-unicast-igp-topology { prefix igp; revision-date 2013-10-21; }

    revision "2013-10-21" {
        description "Initial version";
    }

    augment "/nt:network-topology/nt:topology/igp:igp-topology-attributes" {
        when "../nt:topology-types/igp:l3-unicast-igp-topology/isis";
        container isis-topology-attributes {
            leaf net {
                type string;
            }
        }
    }
}