An atmSubnetworkConnection represents a connection across a subnetwork. An atmSubnetworkConnection is responsible for transporting cells across a subnetwork. It is always bidirectional. An instance of atmSubnetworkConnection is terminated by atmSubnetworkTPs. An instance of this object is created by the managed system or by an action on the atmSubnetwork object. An atmSubnetworkConnection in a composite subnetwork is made up of a series of atmSubnetworkConnections and atmLinkConnections. An atmSubnetworkConnection cannot be created between a composite subnetwork and one of its component subnetworks. Supported values for the availabilityStatus are: - Failed: The atmSubnetworkConnection cannot function - Empty SET (none of the availableStatus conditions exist). The administrativeState is used for administratively locking and unlocking the atmSubnetworkConnection. When unlocked, the atmSubnetworkConnection functions normally. When in the locked state, the atmSubnetworkConnection is prohibited from the transport of characteristic information. For point to point Subnetwork Connections the a-TPInstance and a single entry in the z- TPList are used to indicate the endpoints. Multiple entries in the z-TPList and the a- TPInstance are used to represent the end points of broadcast (point-to-multipoint), merge (multipoint-to-point), and composite connections. The a-TPInstance identifies the primary endpoint. Only the z-TPList is used identify all end points in a multipoint-to-multipoint connection (there is no primary end point). In this case the a-TPInstance shall be NULL. Optionally where both the Network View and NE View are supported and the atmSubnetworkConnection is not broken down into component network level connections, the componentSubnetworkConnectionList of an atmSubnetwork Connection may point directly to the NE View Cross Connection object instances instead of atmSubnetworkConnections, while the componentLinkConnectionList points to atmLinkConnections whose termination points are instances of the NE View vp or vc CTP object class.
Sources for this description
ATM Forum M4 official network view CMIP specifications