Table Of Contents
Tracing the Packet Path
Opening Service Path Trace
Understanding the Service Path Trace Windows and Views
Saving and Loading Service Path Trace Map Files
Tracing the Packet Path
This section describes how to view a network path between network objects using Service Path Trace. You can view the network path in packet-switched networks, such as Ethernet and IP. The Service Path Trace module displays the path a packet takes when running in the live network with all relevant network elements and nodes and the relevant layer properties (Layer 1, Layer 2 and Layer 3).
The tasks that you can perform using Service Path Trace are described in these sections:
•
Opening Service Path Trace
• Understanding the Service Path Trace Windows and Views
• Saving and Loading Service Path Trace Map Files
Roles Required to Use Service Path Trace
Table 11-1 lists the roles that are required to use the Service Path Trace. For more information on roles, see Creating and Managing Users and Scopes, page 14-27.
Table 11-1 Roles Required to Use Service Path Trace
Task
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Role Required
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Opening Service Path Trace
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Any of the following roles:
•Administrator
•Configurator
•Network Operator
•Viewer
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Saving and loading Service Path Trace map files
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Any of the following roles:
•Administrator
•Configurator
•Network Operator
•Viewer
|
Note Service Path Trace shows the path traced with the nodes labeled as "Restricted NE" for the network elements that are not within the scope of the user. The network element properties are not displayed in the Service Path Trace topology for that NE. See Creating and Managing Users and Scopes, page 14-27 for information on the user access control.
Opening Service Path Trace
Service Path Trace can be opened from a physical interface or from a logical IP interface. The IP routing and path finding process is enabled according to the routing tables of each router. To view a specific path you must specify an initial point such as a port connector or an IP Flow point and a destination IP address.
The Service Path Trace module provides you with two windows in which you can view the path:
•Multi Path Window—Displays all the paths available between the selected source and destination.
•Single Path Window—Displays a single path available between the selected source and destination.
You can enter the required destination IP address after opening the Service Path Trace from the right-click shortcut menu at one of the following locations:
•In the Inventory perspective, click the Physical Inventory view and select a port connector.
•In the Inventory perspective, click the Logical Inventory view and select an IP Flow Points.
Figure 11-1 Launching Service Path Trace from the Physical Inventory Tab
1
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Inventory perspective.
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2
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Physical Inventory tab.
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3
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Launching Service Path Trace by right-clicking a Port Connector.
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Figure 11-2 Launching Service Path Trace from the Logical Inventory Tab
1
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Inventory perspective.
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2
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Logical Inventory tab.
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3
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Launching Service Path Trace by right-clicking an IP Flow Points.
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To open a Service Path Trace:
Step 1 In the Inventory perspective, click the Object tab and select a network element.
Step 2 Do either of the following:
•Go to the Physical Inventory view and select a Port Connector.
or
•Go to the Logical Inventory view and select an IP Flow Points.
Step 3 Right-click and choose Service Path Trace.
Step 4 Enter the destination IP address.
Step 5 Click OK. The Service Path Trace is displaced in the map workspace for the selected network elements.
For information on Service Path Trace windows, see Understanding the Service Path Trace Windows and Views.
Understanding the Service Path Trace Windows and Views
This section describes the Service Path Trace windows and views:
• Understanding the Service Path Trace Multi Path Window
• Understanding the Service Path Trace Single Path Window
• Viewing the Path Trace Properties Using the SPT View
Understanding the Service Path Trace Multi Path Window
The Service Path Trace Multi Path window displays all the discovered paths for the selected context, including network elements, and physical links in the topology workspace. If multirouting is configured on the network elements, Service Path Trace displays the data relevant to more than one possible path.
Figure 11-3 shows the Multi Path window. This window contains the following:
•The topology of all possible paths to a given destination with their connecting physical links.
•A separate path, represented by a label on the link showing the path index. Multiple paths between these network elements are shown as comma-separated indices.
•The nodes and the links in the topology, displayed in a symmetric layout, by default.
•The topology that shows the alarm status, communication state, and network element state. See Network Element Decorators, page F-4 for information on the network element icons used in topology.
•The alarm count, displayed along with the network element name.
•The terminating paths, shown as multiple end points.
•The routing loops, shown with multiple topology links between the same NEs and nodes.
•The "Active Tickets" view, brought into focus by selecting the Multi Path window. The Active Tickets view lists the alarms and tickets for the selected NE and node in the topology. See Tracking Faults, page 12-1 for information on tickets and alarms.
You can select any network element in the topology workspace and view the NE properties. For information on NE properties, see Viewing the Network Element Inventory, page 3-3.
Figure 11-3 Service Path Trace Multi Path Window
1
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Multi Path tab.
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2
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Service Path Trace map tab.
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3
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Active Tickets view. By default, this view is activated when the Multi Path window is opened.
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4
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Map workspace.
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5
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Multi Path window local toolbar.
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6
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Path label.
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The Service Path Trace Multi Path window enables you to perform the following functions:
Table 11-2 Service Path Trace Multi Path Window Tool Buttons
Button
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Tooltip
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Description
|
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Run Again
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Enables you to run Service Path Trace again with the same source and destination used to launch the current Service Path instance without re-entering the source and destination information. A new tab with an up-to-date (refreshed) path is created with the tab title indicating the snapshot time.
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Layout
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Defines the way in which the map is displayed in the topological map pane; for example, Circular, Tree, Hierarchical, or Symmetric.
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Zoom Selection
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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.
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Zoom In
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Zooms in on the topology map.
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Zoom Out
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Zooms out of the topology map.
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Normal Selection
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Activates the normal selection mode.
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Pan
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Activates the pan mode, which enables you to move around in the map workspace by clicking and dragging.
To deselect the Pan icon, click Normal Selection.
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Fit In Window
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Fits the entire subnetwork or map in the topology workspace.
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Resize
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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.
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Save to file
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Saves the current path trace. For more information, see Saving and Loading Service Path Trace Map Files
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Load from file
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Loads any previously saved Service Path trace instance and displays the path in the topology workspace. For more information, see Saving and Loading Service Path Trace Map Files.
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Understanding the Service Path Trace Single Path Window
The Single Path window displays the topology showing the layer properties of the selected single path. You can view the details of the path using the Service Path Trace (SPT) view. For information on the SPT view, see Viewing the Path Trace Properties Using the SPT View.
You can select any network element in the topology workspace and view the NE properties. For information on NE properties, see Viewing the Network Element Inventory, page 3-3.
Figure 11-4 Service Path Trace Single Path Window
1
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Service Path Trace map tab.
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2
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Single Path tab.
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3
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Map workspace.
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4
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Single Path window local toolbar.
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5
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SPT view. By default, this view is activated when the Single Path window is opened.
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The Service Path Trace Single Path window enables you to perform the following functions:
Table 11-3 Service Path Trace Single Path Window Tool Buttons
Button
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Tooltip
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Description
|
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Layout
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Defines the way in which the map is displayed in the topological map pane; for example, Circular, Tree, Hierarchical, or Symmetric.
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Zoom Selection
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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.
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Zoom In
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Zooms in on the topology map.
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Zoom Out
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Zooms out of the topology map.
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Normal Selection
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Activates the normal selection mode (the button toggles when selected or deselected).
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Pan
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Activates the pan mode, which enables you to move around in the map workspace by clicking and dragging.
To deselect the Pan icon, click Normal Selection.
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Fit In Window
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Fits the entire subnetwork or map in the topology workspace.
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Resize
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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.
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—
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Path
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Allows you to choose the available path. The selected path displays the path trace topology and relevant properties in the Service Path Trace view. By default, Path 1 is displayed.
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Viewing the Path Trace Properties Using the SPT View
When the Service Path Trace is launched, a common supporting view is also launched, showing Layer 1, Layer 2, and Layer 3 as a table.
Figure 11-5 SPT View
1
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Single Path tab.
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2
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Layer drop-down menu.
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3
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SPT view.
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You can choose a layer from the drop-down list. Based on your selection, the NE labels displayed in the links are updated in the topology workspace.
•Layer 1—Displays the Layer 1 information, such as physical port names, statuses, and so on, in the selected path and enables you to view the link parameters. You can select and sort the column that you want to view in the Layer 1 table using the Customize Column icon.
Table 11-4 Layer 1 Properties
Properties
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Description
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Ethernet Type
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Ethernet type, such as 10Base-T Ethernet (10 Mb/s), Fast Ethernet (100 Mb/s), Gigabit Ethernet (1000 Mb/s), and 10-Gigabit Ethernet (10 Gb/s).
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Max Speed
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Maximum supported speed.
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Operational Status
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Operational status (Unknown, Up, Down, Testing, Dormant, Not Present).
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•Layer 2—Displays the Layer 2 information, such as MAC address and so on, in the selected path. You can select and sort the column that you want to view in the Layer 2 table using the Customize Column icon.
Table 11-5 Layer 2 Properties
Properties
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Description
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MAC Address
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Media Access Control (MAC) address.
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Duplex
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Duplex mode (Unknown, Full, Half).
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Inner Label/Outer Label
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Outer and inner labels for Service Path Trace.
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Distribution Protocol
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Distribution protocol (Null, LDP, TDP, RSVP, TDP, and LDP).
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•Layer 3—Displays the Layer 3 information, such as configured IPs, MTU, and so on, in the selected path and enables you to view the link parameters. You can select and sort the column that you want to view in the Layer 3 table using the Customize Column icon.
Table 11-6 Layer 3 Properties
Properties
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Description
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IP Address
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IP address of the interface.
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Operational Status
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Operational status (Unknown, Up, Down, Testing, Dormant, Not Present).
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Net Mask
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—
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Name
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Name of the interface.
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Maximum packet size (bytes)
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Maximum packet size in bytes.
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VRF Name
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—
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Export Map
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—
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Import Map
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—
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Saving and Loading Service Path Trace Map Files
Service Path Trace enables you to export the maps (paths) displayed in the Multi Path window to a XML file. The data can then be viewed at a later stage to assess whether anything has changed.
The Service Path Trace load icon allows you to load the previously saved path trace that is saved in the XML format.
Note The XML format is for internal use of the application and cannot be opened by the XML editors, such as XML Spy and so forth.
To save and load the multipath map:
Step 1 Click Save to file in the Multi Path window. The Save dialog box appears.
Step 2 Enter the name and click Save. The file is saved in XML format.
Step 3 Click Load from file. The Load MultiPath dialog box appears.
You can also load the Service Path Trace file from File > Service Path Trace > Load Multi-Path.
Step 4 Select the file and click Open. The map is loaded in the Multi Path window.
