topology discovery and network provisioning. Topology discovery includes discovery of network elements, ports, topological links, relationship among termination points, and discovery of subnetworks. As part of network provisioning the support includes setting up port related transmission parameters, protection param- eters, and maintenance operations. Fault management: Some of the fault management capabilities in MTNM are handling of alarm notifications, active alarm list, setting up of alarm reporting and severity profiles, acknowledging alarms, alarm filtering, and support for OMG (object management group) log service. MTNM Compliant EMS Connection management: MTNM supports both protected and unprotected subnetwork connections, with functionality to set subnetwork connec- tion (establishment, modification, and deletion) parameters, configuration of ATM inverse multiplexing traffic descriptors and SONET/SDH virtual concatenation. Call management: Involves creation of calls, deletion, or modification of calls. It also has adding, deleting, or routing connections linked with calls. Equipment management: This includes equipment provisioning, inventory discovery, and equipment mismatch notifications. Performance management: Capability to retrieve current and historical per- formance data, creation/enabling/disabling of threshold cross alert, transfer of historical performance data, and support for tandem connection monitor- ing (TCM). Security management: Includes identification, authentication, detection, and session establishment based on authentication. Miscellaneous: Other capabilities include GUI cut-through where the NMS GUI interacts with EMS GUI and gets data from the EMS without involving the interface modules and support for software backups on the elements (see Figure 8.1). Latest release of MTNM also includes connectionless and control plane man- agement capabilities and the functional areas associated with these capabilities. The deliverables of MTNM are: TMF513: MTNM Business Agreement TMF608: MTNM Inf