Network Topology Overview
The Network Topology window presents a graphical, topological map view of devices, the links between them, and the active alarms on elements in the map. It also enables you to visualize circuits/VCs within the displayed topology map. In addition, the Network Topology window provides access to map element tools and functions, and allows you to drill-down to get detailed information about map elements.
The Network Topology window is accessed from the left sidebar (Create Groups of Devices for Easier Management and Configuration for more information. )). The content of the Network Topology window is determined by the device group(s) you have selected. To select a device group, click the Device Groups button in the toolbar and select one or more groups in the Device Groups panel. (From the Device Groups panel you can access the central device grouping functionality to create new groups, add devices to groups, and so on. See
Each Network Topology map is divided into a left pane that contains alarms/circuits/VCs/links information, and a right pane that displays the map itself. From the left pane, use the toolbar to control the spacing of both panes. For example, if you select 100%, only the map will be shown. If you select 50%, the map and the left pane will share the screen equally. When the left pane is expanded, additional columns might be added to the tables in the tabs.
Alarms, Circuits/VCs, and Links (left pane)— Provides information relevant to the devices and topology shown in the map.
- Alarms tab—Shows a table listing the current alarms for the selected group(s) and their severity. You can select alarms and perform basic actions, such as clear, acknowledge, and so on. For full details of the alarms, click the Alarms Table link at the bottom of the Alarms tab.
- Circuits/VCs tab—Lists the circuits/VCs relevant to the devices in the selected group(s), and indicates the primary state
of each circuit/VC. The primary state reflects the most serious current state of the circuit, as derived from the provisioning,
serviceability, discovery, and alarm states. See Circuit or VC States. By default, the circuits/VCs are sorted by primary state, from most to least severe. Note that:
- Selecting a circuit/VC in the list displays a visual representation of the circuit/VC in the topology map.
- Clicking the Circuits/VCs link at the bottom of the tab launches a separate window with a table of circuits/VCs providing more details for each circuit/VC.
- Clicking the Network Interfaces link at the bottom of the tab launches a table listing the interfaces that have been configured for participation in circuits/VCs, such as UNIs and ENNIs.
- Clicking the appropriate toolbar icon allows you to peform actions such as creating a new circuit or running an ITU-T Y.1564 test on the selected circuit.
- Links tab—Lists the links relevant to the selected device group(s) and shows the highest severity alarm on the link. Selecting a link in the table highlights the link in the topology map. Clicking the Links Table link at the bottom of the tab launches a separate window with a table of links.
Topology map (right pane)—Displays the topology of the selected device group(s) in graphical form. It displays the group’s devices and sub-groups (if any) and the links between them (Physical, Ethernet, and technology-specific links). It also displays the active alarms on the devices or links so that you can easily identify problems in the network. You can drill down from the topology map to detailed information about a device or link in order to troubleshoot problems. The topology map can be customized, filtered, and manipulated to show exactly the information you need.
You can toggle between the network topology map and the geographical map using the toggle buttons in the top right corner of the map.