Chapter 5: Working with Topology Maps

Table Of Contents

Working with Topology Maps

Understanding the Topology User Interface

Roles Required for Managing Maps

Understanding Static and Dynamic Links

Managing Maps

Creating a Map

Creating Static Links

Opening a Topology Map

Adding a Network Element to an Existing Map

Finding the Network Elements in a Map

Renaming a Map

Saving a Map

Deleting a Network Element from a Map

Deleting a Static Link from a Map

Deleting a Map

Managing the Network Elements in a Map

Aggregating the Network Elements in a Map

Renaming an Aggregation Node

Disaggregating the Network Elements in a Map

Selecting a Map Layout

Filtering Topology Links

Understanding Overview and Outline Views

Viewing Network Element Properties

Viewing Topology Link Properties

Finding a Ticket Source

Finding a Link Source

Working with Topology Maps

The ANA Monitoring Perspective provides views that allow you to perform operations on a group of network elements. The topology map displays the status of the network elements and the connectivity between them. The topology map is used as a general dashboard to view the network elements, their status, the relationships between them, and the alarms that are raised on them.

You can create multiple topology maps to represent specific network views. Views can cover specific network segments, customer networks, or any other mix of network elements desired. Once the maps have been created, they are available for all connecting ANA clients.

The ANA Topology module allows you to:

•View network inventory and multilayer connectivity.

•Troubleshoot, monitor, and manage NEs.

•Model and view topology maps.

•Maintain up-to-date topological information of the network element connections and routes.

•Add business attachments.

ANA provides functionality for displaying and managing the topology maps by providing:

•Multiple concurrent maps per user.

•Easily customizable hierarchy of nested submaps and NE aggregations with easy navigation up and down the hierarchy.

•Dual views of the network in a hierarchical tree, as well as in topological maps, including all network connections.

•NEs and links using color cues and graphic symbols to indicate status and alarms.

The tasks that you can perform using Topology are described in these sections:

• Creating Static Links

• Creating a Map

• Opening a Topology Map

• Adding a Network Element to an Existing Map

• Finding the Network Elements in a Map

• Renaming a Map

• Deleting a Network Element from a Map

• Aggregating the Network Elements in a Map

• Renaming an Aggregation Node

• Disaggregating the Network Elements in a Map

• Selecting a Map Layout

• Filtering Topology Links

• Viewing Network Element Properties

• Viewing Topology Link Properties

• Finding a Ticket Source

• Finding a Link Source

Understanding the Topology User Interface

Figure 5-1 Topology User Interface

1

Network Domain drawer.

2

Topology file menu.

3

Map filename. The asterisk (*) in the filename indicates that the map is not saved.

4

Map workspace.

5

Topology local toolbar.

6

Aggregate node shown as a thumbnail.

7

Monitoring perspective.

8

Topology views: Link, Active Tickets, and Network Elements.

9

Topology views: Overview and Outline.

10

View selection icon.

Roles Required for Managing Maps

Table 5-1 lists the roles that are required for managing maps. For more information on roles, see Creating and Managing Users and Scopes, page 14-27.

Table 5-1 Roles Required for Managing Maps

Task

Roles Required

Creating a map

Any of the following roles:

•Administrator

•Configurator

Creating static links

Any of the following roles:

•Administrator

•Configurator

Opening a topology map

Any of the following roles:

•Administrator

•Configurator

•Network Operator

•Viewer

Adding a network element to an existing map

Any of the following roles:

•Administrator

•Configurator

Finding the network elements in a map

Any of the following roles:

•Administrator

•Configurator

•Network Operator

•Viewer

Renaming a map

Any of the following roles:

•Administrator

•Configurator

Deleting a network element from a map

Any of the following roles:

•Administrator

•Configurator

Deleting a static link from a map

Any of the following roles:

•Administrator

•Configurator

Deleting a map

Any of the following roles:

•Administrator

•Configurator

Aggregating the network elements in a map

Any of the following roles:

•Administrator

•Configurator

Renaming an aggregation node

Any of the following roles:

•Administrator

•Configurator

Disaggregating the network elements in a map

Any of the following roles:

•Administrator

•Configurator

Selecting a map layout

Any of the following roles:

•Administrator

•Configurator

•Network Operator

Filtering topology links

Any of the following roles:

•Administrator

•Configurator

Viewing network element properties

Any of the following roles:

•Administrator

•Configurator

•Network Operator

•Viewer

Viewing topology link properties

Any of the following roles:

•Administrator

•Configurator

•Network Operator

•Viewer

Finding a ticket source

Any of the following roles:

•Administrator

•Configurator

•Network Operator

•Viewer

Finding a link source

Any of the following roles:

•Administrator

•Configurator

•Network Operator

•Viewer

Understanding Static and Dynamic Links

The ANA Topology module enables you to manage the links between network elements and to add a new static link between them.

A dynamic link is a link that is detected by ANA and connected automatically. A static link is a link that you can manually create.

When adding a new link the state of the link reflects its current state. For example, if the operation status of a port is down, the link is colored red.

For information on creating static and dynamic links, see:

• Creating Static Links

• Creating a Map

Managing Maps

These topics describe how to manage maps:

• Creating a Map

• Creating Static Links

• Opening a Topology Map

• Adding a Network Element to an Existing Map

• Finding the Network Elements in a Map

• Renaming a Map

• Saving a Map

• Deleting a Network Element from a Map

• Deleting a Static Link from a Map

• Deleting a Map

Creating a Map

You must create a new map, or open a map that was previously saved, to display the network. The ANA Topology module supports the creation of multiple topology maps to represent specific network views. The topology maps provide a graphic display of Alarm severity, network element state, and VNE state. See Network Element Decorators, page F-4 to understand the network element icons that are displayed in the map.

You can create a new map, and then add the network elements to the map. You cannot define the same name for two or more maps.

To create a map:

Step 1 In the Monitoring perspective, click the Task tab and select the Topology drawer.

Step 2 Double-click New Network Domain. The Network Domain Name workspace is displayed.

Step 3 Enter a name for the map.

You can use alphanumeric values. The minimum map name length is 1 character and the maximum is 65 characters. The only special characters you can enter are an underscore (_) and dollar symbol ($).

Step 4 Select the required network elements using the Network Element Selector and click Next. (You can create a map without selecting any network elements. You can add the network elements after creating a map.)

You can add a maximum of 999 network elements to a map.

The list of network elements that you have selected is displayed in the Summary workspace.

Step 5 Click Finish.

Creating Static Links

When dynamic links are not visible in your topology map, you can create static links. You can create a static link between network elements by selecting the two end ports of the network elements. You can create a static link between two managed network elements. To create a static topological link, you have to select the exact location of the two end ports (at both ends of the link).

The new link is validated after the two ports are selected but before the link is added. The ANA Topology module validates the following:

•The similarity of the connector port types (for example, RJ45 on both sides).

•The Layer 2 technology type.

•The physical layer.

•The operation status of both ports.

•Whether one of the ports is part of another link.

To create a new static link:

Step 1 In the Monitoring perspective, click the Object tab and select an existing map. The map appears in the workspace.

Step 2 Choose Topology > Topology Map Management > New Static Link. The Select A-Side and Z-Side Device workspace is displayed.

Step 3 Select a network element in A-Side and Z-Side and click Next. The Select the Port in A-Side and Z-Side Device workspace is displayed.

Step 4 Select a port in the A-side and Z-side and click Next. The Summary workspace is displayed with the network element and port details for A-side and Z-side.

Step 5 Click Finish.

See Viewing Network Element Properties and Viewing Topology Link Properties for details on the element and link properties.

Opening a Topology Map

You can open a map that was previously saved. When you open the map, the network information is automatically refreshed. For example, if a network element was up the last time that the map was saved and closed, and then the network element is moved to maintenance state, the next time you open the map, the management status of the network element is updated accordingly and the network element is displayed in the maintenance state.

Figure 5-2 Static and Dynamic Links

1

Outline view. See Understanding Overview and Outline Views for more information on Outline view

2

Map workspace.

3

Aggregate node shown as an icon.

4

View table.

5

Link view.

To open a topology map:

Step 1 In the Monitoring perspective, click the Object tab.

The list of maps that are accessible to you is displayed in the Network Domain drawer.

Step 2 Double-click a map. The map is displayed in the workspace.

If you have added a business tag to a network element, the business tag name is displayed instead of the network element name in the topology map. See Defining Business Tags, page 6-1 to create business tags.

The following color codes are used to display the map links:

•Green—Indicates the links are active. The links can be physical, data, or network links.

•Red—Indicates the links are down. You can review the Link view to troubleshoot the link.

•Blue—Indicates that the link has been selected.

If there are multiple links (for example, physical and Ethernet links) between network elements, these links are represented in a single line. The A and Z ends of the links are displayed in the topology maps. The details of these links are available in the Link view. See Viewing Topology Link Properties from the Link View for details on links.

After discovering the network, if the interfaces are disconnected, the physical link is still visible between these interfaces. However, the alarm for Link Down connection is logged.

The topology map shows a different icon (a lock) for the network elements that are not within the scope of the user. See Creating and Managing Users and Scopes, page 14-27 for information on user access control.

To understand network elements representation, see Icon Reference, page F-3.

Adding a Network Element to an Existing Map

To add a network element:

Step 1 In the Monitoring perspective, click the Task tab and select the Topology drawer.

Step 2 Double-click Add Element to Network Domain. The Select Network Domain workspace appears.

Step 3 Select a map and click Next.

Step 4 Select a network element from the Select Elements to Be Added workspace and click Next.

You can add a maximum of 999 network elements to a map.

The list of network elements that you have selected is displayed in the Summary workspace.

Step 5 Click Finish.

Finding the Network Elements in a Map

You can find the network elements based on the name or IP address that you entered in the ANA database.

To find a network element in a map:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map.

Step 3 Choose Topology > Topology Map Management > Find in Topology Map from the menu. The Enter the Name of the Device dialog box appears.

You can enter either a complete or a partial NE name or IP address.

Step 4 Enter the network element name and click OK.

The network element name that you have entered is highlighted in the map workspace. If your search criteria match more than one NE, you have to click OK multiple times to see all the NEs.

If the NE is inside an aggregate, the aggregate is expanded and the NE is highlighted.

Renaming a Map

A map name change affects all users of the map. The new name is displayed in the Network Domain drawer.

To rename a map:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map and right-click.

Step 3 Select Rename Network Domain. The Rename Network Domain dialog box appears.

Step 4 Enter the new name and click OK.

The new name is displayed in the Network Domain drawer.

Saving a Map

You can save map layouts and change existing map layouts.

The following changes to the workspace are only saved when the Save option is selected:

•Addition or deletion of a network element.

•Addition or deletion of a link.

•Aggregation or disaggregation of elements.

•Renaming an aggregation.

•The location of the network elements on a map.

•The layout.

•Thumbnails.

•The size of the network elements.

The maps can then be opened later as required.

To save changes to a map, do one of the following:

•Go to File > Save. The map that is active in the map workspace is saved. (You can also use the short-cut key, CTL+S.)

•Go to File > Save All. All of the maps that are opened in the map workspace are saved.

Deleting a Network Element from a Map

To delete a network element:

Step 1 In the Monitoring perspective, click the Task tab and select the Topology drawer.

Step 2 Double-click Delete Element from Network Domain. The Select Network Domain workspace appears.

Step 3 Select a map and click Next.

Step 4 Select a network element from the Select Elements to Be Deleted workspace and click Next.

The list of deleted network elements that you have selected is displayed in the Summary workspace.

Step 5 Click Finish.

Deleting a Static Link from a Map

To delete a static link:

Step 1 In the Monitoring perspective, click the Object tab.

The list of maps that are accessible to you is displayed in the Network Domain drawer.

Step 2 Double-click the map. The map is displayed in the workspace.

Step 3 Choose Window > Show View > Links to enable the Link view.

Step 4 Select the link in the map workspace.

The link properties are displayed in the Link view.

Step 5 Select the static link and right-click.

Step 6 Select Delete Static Link.

The static link is deleted from the map workspace and also from the Link view.

Deleting a Map

To delete a map:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map and right-click.

Step 3 Select Delete Network Domain.

The map is deleted from the Network Domain drawer.

Managing the Network Elements in a Map

These topics describe how to manage the network elements within a map:

• Aggregating the Network Elements in a Map

• Renaming an Aggregation Node

• Disaggregating the Network Elements in a Map

• Selecting a Map Layout

• Filtering Topology Links

• Viewing Network Element Properties

• Viewing Topology Link Properties

• Finding a Ticket Source

• Finding a Link Source

Aggregating the Network Elements in a Map

To aggregate the network elements in a map:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map. The network elements of the selected map are displayed in the map workspace.

Step 3 Select the required network elements in the map workspace using <Ctrl> or the selection tool.

Step 4 Choose Topology > Topology Map Management > New Aggregation from the menu. The New Aggregation dialog box appears.

Step 5 Enter the name for the aggregation and click OK.

The aggregated node is displayed in the map workspace. Aggregated nodes are displayed as a single entity with the Aggregation icon. The aggregation node is appended with the alarm severity.

For example, the aggregation name SampleAggregation, appended with the alarm severity, might result in the name SampleAggregation [5M+]. This indicates that the aggregation has five major severity alarms. The plus sign indicates that there are more alarms in this aggregation.

See Network Element Decorators, page F-4 for information on alarm severity icons.

Renaming an Aggregation Node

To rename an aggregation node:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map. The network elements of the selected map are displayed in the map workspace.

Step 3 Select the required aggregation node.

Step 4 Select Topology > Topology Map Management > Rename Aggregation from the menu. The Rename Aggregate dialog box appears.

Step 5 Enter the name for the aggregation and click OK.

The renamed aggregated node is displayed in the map workspace.

Disaggregating the Network Elements in a Map

To disaggregate an aggregation node:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map. The network elements of the selected map are displayed in the map workspace.

Step 3 Select the required aggregation node.

Step 4 Choose Topology > Topology Map Management > Disaggregate from the menu. A confirmation dialog box appears.

Step 5 Click OK. The disaggregated network elements are displayed in the map workspace.

Selecting a Map Layout

You can select different map layouts and different map views of the network elements using the selection tools in the map workspace.

Table 5-2 Topology Map Tool Buttons

Icon

Tooltip

Description

Layout

Defines the way in which the map is displayed in the map workspace; for example, Circular, Tree, Hierarchical, or Symmetric.

Zoom Selection

Activates the zoom selection mode, which enables you to select an area in the map workspace to be enlarged by clicking and dragging to view the selected area.

Zoom In

Zooms in on the topology map.

Zoom Out

Zooms out of the topology map.

Normal Selection

Activates the normal selection mode.

Pan

Activates the Pan mode, which enables you to move around in the map workspace by clicking and dragging.

To deselect the Pan icon, click the Normal Selection icon.

Fit In Window

Fits the entire subnetwork or map in the map workspace.

Resize

Enables you to resize the NE in the map workspace. By default, the NE size is medium.

•Small—Reduces the size to 50% from the standard size.

•Medium—Displays the standard size.

•Large—Increases the size to 200% from the standard size.

New Aggregation

Enables you to aggregate network elements.

See Aggregating the Network Elements in a Map for more details.

Disaggregate

Enables you to disaggregate an aggregate node.

See Disaggregating the Network Elements in a Map for more details.

Show Aggregation as Thumbnail

Enables you to look into an aggregation node in the map, including all of the aggregated elements. Thumbnails can also be nested.

This is activated only if you select an aggregation node.

Topology Map Filter

Enables you to filter the links.

Go to Parent

Enables you to navigate to the parent of the network element.

Go to Root

Enables you to navigate to the root of the network element.

Find in Topology Map

Enables you to find the network elements in a topology map.

See Finding the Network Elements in a Map for more details.

Filtering Topology Links

The links filter enables you to filter the links displayed in the map workspace.

To filter the topology links:

Step 1 In the Monitoring perspective, click the Object tab.

Step 2 Select a map. The network elements of the selected map are displayed in the map workspace.

Step 3 Choose Topology Map Filter from the icons menu. The Map Options dialog box appears.

Step 4 Select a map option from the drop-down list:

•All—Displays physical, data-link, and network layer links.

•Physical Layer—Displays physical layer and Ethernet links.

•Data-Link Layer—Displays PPP links.

•Network Layer—Displays MPLS and IP links.

Step 5 Click OK.

The appropriate links are displayed in the map workspace. See Viewing Topology Link Properties for more information on link properties.

Understanding Overview and Outline Views

When you open a topology map, the Overview and the Outline views are displayed automatically. See Topology User Interface.

Figure 5-3 Topology Outline View

1

Overview view. Select the blue outline to zoom in on the map.

2

Map workspace. The selected area in the Outline view is zoomed in in the workspace.

The Overview view shows a scaled down version of the map that is displayed in the map workspace. The selected area in the Overview view is zoomed in on the map workspace. This feature is useful in navigating large maps.

The Outline view shows all the network elements that are part of the selected map. From this view, you can:

•View the severity of the tickets. The network element is appended with the alarm severity.

For example, the network element name 192.168.10.10, appended with the alarm severity, might result in the name 192.168.10.10 [2M+]. This indicates that the network element has two major severity alarms. The plus sign indicates that there are more alarms associated with this network element.

See Network Element Decorators, page F-4 for information on alarm severity icons.

•View the network element property by single-clicking. The network element property is opened in the Properties view.

•View the network element property by double-clicking. The Inventory perspective is launched with the network element properties displayed in the workspace.

Viewing Network Element Properties

The Network Elements view displays network element properties in the selected map. You can launch the following applications from this view:

•Launch Soft Property Builder. See Customizing Network Element Information Using Soft Property Builder, page A-1.

•Command Builder. See Managing and Deploying Configuration Changes, page 8-1.

•Set Network Element State. See Viewing Network Element States and Inventory, page 3-1.

•Network Element Image Management. See Managing Software Images, page 9-1.

•Business tag. See Defining Business Tags, page 6-1.

•Config Archive. See Archiving and Managing Configuration Files, page 7-1.

To view the network element properties in a map:

Step 1 In the Monitoring perspective, click the Object tab.

The list of maps that are accessible to you is displayed in the Network Domain drawer.

Step 2 Double-click the map. The map is displayed in the workspace.

Step 3 Choose Window > Show View > Network Elements to enable the Network Elements view.

All the network elements that are available in the map are displayed in the Network Element view:

Property

Description

Device Name

Element name provided by you while adding a VNE in ANA.

IP Address

Management IP address of the element.

System Name

System name taken from MIB II (RFC 1213).

Communication State

Communication state with the managed network element and the gateway (Unknown, Network Element Unreachable, Agent Unreachable, Network Element Reachable, Agent Unloaded).

Investigation State

Investigation state of the VNE (Unknown, Initializing, Normal, Incomplete, Unsupported, Network Element Agent Shutting Down, Network Element Agent Maintenance, Network Element Agent Preparing for Maintenance).

Category

Element category (Unknown, DSLAM, Switch, Router, and so on).

Element Type

Element type mapped by the registry based on the SNMP system OID.

Vendor

Vendor identity (Null, Alcatel, Cisco, Redback Networks ECI Telecom, and so on).

Up Since

Time at which this network element became activated.

Location

Location taken from MIB II (RFC 1213).

Viewing Topology Link Properties

You can view the topology link properties in two ways:

• Viewing Topology Link Properties from the Map Workspace

• Viewing Topology Link Properties from the Link View

Viewing Topology Link Properties from the Map Workspace

To view the topology link properties:

Step 1 Select a link in the map workspace.

Step 2 Right-click and choose Properties.

The Properties context menu is enabled only if there is a single link between NEs. If there are multiple links between NEs (for example, physical and Ethernet links) the Properties context menu is not enabled. The A and Z ends of the links are displayed in the topology maps. These links details are also available in the Link view. See Viewing Topology Link Properties from the Link View for details on links.

The Link properties are displayed in the workspace:

Property

Description

A End-Point

Displays the source of the topology link between network elements.

Z End-Point

Displays the destination of the topology link between network elements.

Link Type

Displays the link type: Physical layer, Ethernet, PPP, MPLS, or IP.

Detection Type

Displays whether the link is dynamic link or static link.

BiDirectional

Displays whether the link is a bidirectional link. The values can be either True or False.

Viewing Topology Link Properties from the Link View

To view the topology link properties:

Step 1 In the Monitoring perspective, click the Object tab.

The list of maps that are accessible to you is displayed in the Network Domain drawer.

Step 2 Double-click the map. The map is displayed in the workspace.

Step 3 Go to Window > Show View > Links to enable the Link view.

All the links that are available in the map are displayed in the Link view:

Property

Description

Severity

Displays a severity icon, which is colored according to the severity of the alarm on the link. This indicates the impact of the alarm on the network.

•Red: Critical

•Orange: Major

•Yellow: Minor

•Sky Blue: Warning

•Green: Cleared, normal or OK

•Dark Blue: Information

•White: Indeterminate

See Tracking Faults, page 12-1 for more details on alarms.

A End-Point

Displays the source of the topology link between network elements.

Z End-Point

Displays the destination of the topology link between network elements.

Link Type

Displays the link type: Physical layer, Ethernet, PPP, MPLS, or IP.

Detection Type

Displays whether the link is dynamic link or static link.

BiDirectional

Displays whether the link is a bidirectional link. The values can be either True or False.

Finding a Ticket Source

You can find the source of a ticket displayed in the ticket view. See Tracking Faults, page 12-1 for more details on alarms.

Step 1 Go to Window > Show View > Active Tickets to enable the Active Tickets view.

Step 2 In the Monitoring perspective, click the Object tab.

Step 3 Select a map. All the tickets that are applicable to the selected map are displayed in the Active Tickets view.

Step 4 Select a ticket in the Active Tickets view.

Step 5 Right-click and choose Find Source. The source of the ticket is highlighted in the map workspace.

Finding a Link Source

To find a link source:

Step 1 Go to Window > Show View > Links to enable the Link view.

Step 2 In the Monitoring perspective, click the Object tab.

Step 3 Select a map. All the links that are applicable to the selected map are displayed in the Links view.

Step 4 Select a link in the Links view.

Step 5 Right-click and choose Find Link Source. The source of the ticket is highlighted in the map workspace.

1	Network Domain drawer.	2	Topology file menu.
3	Map filename. The asterisk (*) in the filename indicates that the map is not saved.	4	Map workspace.
5	Topology local toolbar.	6	Aggregate node shown as a thumbnail.
7	Monitoring perspective.	8	Topology views: Link, Active Tickets, and Network Elements.
9	Topology views: Overview and Outline.	10	View selection icon.

Task	Roles Required
Creating a map	Any of the following roles: •Administrator •Configurator
Creating static links	Any of the following roles: •Administrator •Configurator
Opening a topology map	Any of the following roles: •Administrator •Configurator •Network Operator •Viewer
Adding a network element to an existing map	Any of the following roles: •Administrator •Configurator
Finding the network elements in a map	Any of the following roles: •Administrator •Configurator •Network Operator •Viewer
Renaming a map	Any of the following roles: •Administrator •Configurator
Deleting a network element from a map	Any of the following roles: •Administrator •Configurator
Deleting a static link from a map	Any of the following roles: •Administrator •Configurator
Deleting a map	Any of the following roles: •Administrator •Configurator
Aggregating the network elements in a map	Any of the following roles: •Administrator •Configurator
Renaming an aggregation node	Any of the following roles: •Administrator •Configurator
Disaggregating the network elements in a map	Any of the following roles: •Administrator •Configurator
Selecting a map layout	Any of the following roles: •Administrator •Configurator •Network Operator
Filtering topology links	Any of the following roles: •Administrator •Configurator
Viewing network element properties	Any of the following roles: •Administrator •Configurator •Network Operator •Viewer
Viewing topology link properties	Any of the following roles: •Administrator •Configurator •Network Operator •Viewer
Finding a ticket source	Any of the following roles: •Administrator •Configurator •Network Operator •Viewer
Finding a link source	Any of the following roles: •Administrator •Configurator •Network Operator •Viewer

1	Outline view. See Understanding Overview and Outline Views for more information on Outline view	2	Map workspace.
3	Aggregate node shown as an icon.	4	View table.
5	Link view.

Icon	Tooltip	Description
	Layout	Defines the way in which the map is displayed in the map workspace; for example, Circular, Tree, Hierarchical, or Symmetric.
	Zoom Selection	Activates the zoom selection mode, which enables you to select an area in the map workspace to be enlarged by clicking and dragging to view the selected area.
	Zoom In	Zooms in on the topology map.
	Zoom Out	Zooms out of the topology map.
	Normal Selection	Activates the normal selection mode.
	Pan	Activates the Pan mode, which enables you to move around in the map workspace by clicking and dragging. To deselect the Pan icon, click the Normal Selection icon.
	Fit In Window	Fits the entire subnetwork or map in the map workspace.
	Resize	Enables you to resize the NE in the map workspace. By default, the NE size is medium. •Small—Reduces the size to 50% from the standard size. •Medium—Displays the standard size. •Large—Increases the size to 200% from the standard size.
	New Aggregation	Enables you to aggregate network elements. See Aggregating the Network Elements in a Map for more details.
	Disaggregate	Enables you to disaggregate an aggregate node. See Disaggregating the Network Elements in a Map for more details.
	Show Aggregation as Thumbnail	Enables you to look into an aggregation node in the map, including all of the aggregated elements. Thumbnails can also be nested. This is activated only if you select an aggregation node.
	Topology Map Filter	Enables you to filter the links.
	Go to Parent	Enables you to navigate to the parent of the network element.
	Go to Root	Enables you to navigate to the root of the network element.
	Find in Topology Map	Enables you to find the network elements in a topology map. See Finding the Network Elements in a Map for more details.

Property	Description
Device Name	Element name provided by you while adding a VNE in ANA.
IP Address	Management IP address of the element.
System Name	System name taken from MIB II (RFC 1213).
System Name	System name taken from MIB II (RFC 1213).
Communication State	Communication state with the managed network element and the gateway (Unknown, Network Element Unreachable, Agent Unreachable, Network Element Reachable, Agent Unloaded).
Investigation State	Investigation state of the VNE (Unknown, Initializing, Normal, Incomplete, Unsupported, Network Element Agent Shutting Down, Network Element Agent Maintenance, Network Element Agent Preparing for Maintenance).
Category	Element category (Unknown, DSLAM, Switch, Router, and so on).
Element Type	Element type mapped by the registry based on the SNMP system OID.
Vendor	Vendor identity (Null, Alcatel, Cisco, Redback Networks ECI Telecom, and so on).
Up Since	Time at which this network element became activated.
Location	Location taken from MIB II (RFC 1213).

Property	Description
A End-Point	Displays the source of the topology link between network elements.
Z End-Point	Displays the destination of the topology link between network elements.
Link Type	Displays the link type: Physical layer, Ethernet, PPP, MPLS, or IP.
Detection Type	Displays whether the link is dynamic link or static link.
BiDirectional	Displays whether the link is a bidirectional link. The values can be either True or False.

Property	Description
Severity	Displays a severity icon, which is colored according to the severity of the alarm on the link. This indicates the impact of the alarm on the network. •Red: Critical •Orange: Major •Yellow: Minor •Sky Blue: Warning •Green: Cleared, normal or OK •Dark Blue: Information •White: Indeterminate See Tracking Faults, page 12-1 for more details on alarms.
A End-Point	Displays the source of the topology link between network elements.
Z End-Point	Displays the destination of the topology link between network elements.
Link Type	Displays the link type: Physical layer, Ethernet, PPP, MPLS, or IP.
Detection Type	Displays whether the link is dynamic link or static link.
BiDirectional	Displays whether the link is a bidirectional link. The values can be either True or False.