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Route-Target Export/Import Relationships

 

The VPN View also shows route target export/import relationships that exist between VPNs. A visual picture helps the network planner or engineer to clearly and quickly identify relationships between VPNs (e.g. hub-and-spoke or extranet VPN relationships). When there are export/import relationships with other VPNs, then the To Import/Export Relation View selection in the upper right-hand corner of the VPN View becomes visible. The following figure shows that VPN HUB_AO has export/import relationships with other VPNs, since the To Import/Export Relation View selection is visible.

Figure 1: Click on To Import/Export Relation View to see import/export relationships with other VPNs
Click on To Import/Export Relation View to see import/export
relationships with other VPNs

Click on To Import/Export Relation View to get to the Import/Export Relation View. The blue circle icon with a triangle inside is a grouping icon represents the current VPN (HUB_A0), while the yellow dot icons represent other VPNs (in this example, the SPOKEPPL_* VPNs) that have export/import relationships with the current VPN.

To see how other VPNs (the yellow dots) are related to the current VPN, you can click on a yellow dot to see the route targets that are being exported and imported. For instance the following figure shows that VPN SPOKEPPL_7 is exporting 101:8 and importing 101:9, while HUB_A0 is exporting 101:9 and importing 101:8. The Import/Export Relation View allows you to clearly see relationships between VPNs. Note that you can go back to the regular VPN View by clicking on To VPN View.

Figure 2: Click on another VPN (a yellow dot) to see its relationship to the current VPN
Click on another VPN (a yellow dot) to see its relationship
to the current VPN

The right-click menu of the Import/Export Relation View gives you the option to expand the currently collapsed VPN (HUB_AO) which is represented by the blue circle icon with a triangle in it. Selecting Expand All would reveal all the nodes with in the VPN.

Figure 3: Right-click menu in the Import/Export Relation View
Right-click menu in the Import/Export Relation View

The following figure shows you the Import/Export Relation View with the nodes in VPN HUB_AO expanded.

Figure 4: Import/Export Relation View with nodes of VPN HUB_AO expanded
Import/Export Relation View with nodes of VPN HUB_AO
expanded

You can also move the icons around. Control-click to select multiple icons.

Instead of the visual display showing the import/export relationships that is in the Import/Export Relation View, you can also access the same information in table form. As shown in the following figure, you would choose Show Relations in Table Form from the right-click menu.

Figure 5: Show Relations in Table Form from the r-click menu for VPN MGMT_VPN
Show Relations in Table Form from the r-click menu
for VPN MGMT_VPN

Once Show Relations in Table Form is chosen, the Export/Import table for the VPN is shown.

Figure 6: Export /Import table for VPN MGMT_VPN
Export /Import table for VPN MGMT_VPN

In instances when there are a large number of export/import relations and you click on To Import/Export Relation View, you will be prompted with the “This map could take a long time to calculate and display.” message. If you would be willing to wait and still want to see the export/import relations in graphical form, then click on “Click here if you want to proceed.” Instead, you may choose to view the import/export relations in table form, as described in the previous step.

Figure 7: A particular VPN could have a large number of export/import relations with other VPNs
A particular VPN could have a large number of export/import
relations with other VPNs

The Report Manager includes a VPN Export-Import report under Network Reports > VPN, as shown in the following figure, that shows all of the route target export/import relationships that exist between VPNs in the network.

Figure 8: VPN Export-Import report
VPN Export-Import report