Figure PF.10 - Resource, Performance Category, and Network Address

The network addresses associated to elements whose performance is being measured are also important to the definition of a PerformanceSpecification.  For example, an IP address associated with a GGSN.  The PerformanceNetworkAddress entity, shown in following Figure, supports the identification of associated network resources.  It extends the definition of the existing SID NetworkAddress entity and identifies the source and destination resources which are critical for hop-by-hop measurements.  Currently, a PerformanceNetworkAddress can be an IP address or a point code, but additional types of addresses can be added by adding a new instance of a NetworkAddressSpecification as shown in the figure.  NetworkAddresses can also be associated with PerformanceCategories as defined by the association between NetworkAddressSpecification and PeformanceSpecification.<br/>Following Figure also shows the role a Resource can play in Performance via the association class PerfResourceSpecificationRole and PerformanceResourceRole entities.  For example, one network element may be the source of a message and another network element may be the destination.<br/>