The NFM-T network map is a primary graphical interface for network monitoring and management. A core feature is its ability to visually represent the health of the network. It displays network elements (nodes) and the physical links between them, using a color-coding system to indicate the severity of the highest active alarm on each component. For instance, a link or node with a critical alarm will appear red. Furthermore, the map is interactive, offering context-sensitive menus (e.g., by right-clicking an object) that allow operators to navigate directly to relevant management functions, such as viewing detailed alarms, properties, or initiating provisioning tasks for that specific element.

A. Grouping of nodes into sub-maps is a manual process performed by the operator for organizational purposes; it is not automatically performed based on the location string attribute.

B. Nodes are grouped topologically or geographically within sub-maps created by the user. Their color represents the alarm status, but the grouping itself is not based on this dynamic state.

D. The visualization of end-to-end services is typically performed in a dedicated Service Management application or view within NFM-T, which is distinct from the primary physical network map.

1. Nokia Network Functions Manager - Transport (NFM-T) R20 User Guide, Chapter 4: "Working with network maps". This chapter details the creation and management of network maps and sub-maps, describing how network elements and links are represented. It explicitly states that the color of an object on the map reflects its alarm status.

2. Nokia Network Functions Manager - Transport (NFM-T) R20 Fault Management Guide, Chapter 2: "Alarm monitoring and management". This document describes how alarms are visualized throughout the NFM-T GUI, including the network map. Section 2.3, "Alarm severity and color coding," confirms that nodes and links change color based on the highest severity alarm present.

3. Nokia Network Functions Manager - Transport (NFM-T) R20 User Guide, Chapter 4, Section: "Navigating from the network map". This section explains that right-clicking on a managed object in the map view opens a context-sensitive menu with options to access other functions like the Alarm List, Equipment View, or provisioning windows for that specific object.