An atmLinkTP is a topological component used to represent the termination of an atmLink. Link level configuration information may be associated with the atmLinkTP object. An instance of atmLinkTP is created explicitly by the management system, the managed system, or the setupLink ACTION. Access parameters and pointers to the underlying TTPs are represented in the related atmNetworkAccessProfile objects. The atmLinkTP terminates atmLink and provides the capability to store link level configuration information. The available bandwidth attributes describe the aggregated amount of unallocated bandwidth in the ingress and egress directions. The maximum assignable bandwidth attributes describe for each direction the maximum bandwidth that may actually be assigned to a new connection. In the case where the atmLink is supported by a single server trail, the maximum assignable bandwidth is the same as the available bandwidth. The associated atmNetworkAccessProfile describes the total amount of bandwidth (i.e., allocated and unallocated) for the atmLink. This total bandwidth shall be consistent with the bandwidth allocated to the server trails. The serverTTPList attribute points to the underlying or server TTPs that support the atmLinkTP. If applicable, at the vcLayer these are instances of the vpTTPBid object class. If applicable, at the vpLayer these are instance of the tcAdaptorTTPBid object class. Attribute value change notifications are applicable to the linkPointer, atmNetworkAccessProfilePointer, and serverTTPList attributes, but not to the attributes associated with available and assignable bandwidth because of their dynamic nature. The characteristics described by the atmNetworkAccessProfile associated with an atmLinkTP shall be consistent with the atmNetworkAccessProfile of the related atmLink. Note that the related atmNetworkAccessProfile information is also in the NE-view atmAccessProfile object contained in the tcAdaptorTTPBidirectional or in the vpTTPBidirectional object: - If the profiling information in the atmNetworkAccessProfile object includes attribute values that are more constraining than those in the Access Profile contained in the server TTP and if the corresponding atmLinkTP points to multiple server TTPs, then the server TTP Access Profile information takes precedence over the one in the atmNetworkAccessProfile. If not, the atmNetworkAccessProfile information applies. - If the profiling information in the atmNetworkAccessProfile object includes attribute values that are less constraining than those in the Access Profile contained in the server TTP and if the multiple atmLinkTP points to a single server TTP, then the atmNetwork AccessProfile information takes precedence over the server TTP Access Profile. If not, the server TTP Access Profile information applies.
Sources for this description
ATM Forum M4 official network view CMIP specifications