The vcLayerNetworkDomain object class represents the part of the VC Layer which is available to a managing system through the M4 interface. The vcLayerNetworkDomain corresponds to an administration. A vcLayerNetworkDomain is defined to support the requirement for independent layer management of the VC Layer. The vcLayerNetworkDomain object represents part of an administration’s portion of the VC Layer which is available to a managing system through the M4 interface. It contains only objects from a single VC Layer. In this model, a VC Layer Network Domain is associated with one and only one top subnetwork, which can be further decomposed. Portions of a trail that traverse another administration are represented by subnetwork connections in subnetworks named by the vcLayerNetworkDomain of that administration. These foreign subnetworks are component subnetworks that have topological relationships with other component subnetworks of the vcLayerNetworkDomain. There may be several Layer Network Domains within a single Network. A vcLayerNetworkDomain is defined to support the requirement for independent layer management of the VC Layer. The vcLayerNetworkDomain object provides an abstraction that allows the establishment and removal of atmTrails across the vcLayerNetworkDomain. The userLabel may be used to represent additional information about the layer network domain. In cases where the vcLayerNetworkDomain is managed by a different system the inherited systemTitle may be used. Created automatically at the initialization of the superior (network) object. The automatic creation of instances of this object shall be reported over the M4 interface to the managing system. The managing system may subsequently create instances of vcLayerNetworkDomain. The setupTrail ACTION sets up, or schedules the setup of a point-to-point or a multipoint connection between non-connected TTPs in the layer network. The modifyTrail ACTION modifies, or schedules the modification of the parameters of a point-to-point or a multipoint connection between connected TTPs in the layer network. The addTpsToTrail ACTION adds, or schedules the addition of TTPs to an existing multipoint trail connection in the layer network. The removeTpsFromTrail ACTION releases, or schedules the release of TTPs from a multipoint trail in the layer network. The releaseTrail ACTION releases, or schedules the release of a point-to-point or a multipoint trail between TTPs in the layer network. The cancelTrailRequest ACTION cancels a deferred trail setup, modification, release, addTps, or removeTps request. The setupLink ACTION sets up a point-to-point link between two subnetworks or NEs in the atmSubnetwork
Sources for this description
ATM Forum M4 official network view CMIP specifications