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About the Link Tab (Planner)

On the Link tab (Planning > Networks > Offline Models > Model-Name > Open), view information about the links in the network. You can also perform various actions on the links from this tab. To perform common actions such as filtering using advanced filter criteria, downloading link details, and resetting preferences, see Network Table Overview.

Tasks You Can Perform

You can perform the following tasks on the Link tab:

  • View link traffic—You can view the historical data for link traffic. To view the link traffic, select a link and click View > View Traffic. The Link Traffic page appears.

    You can view a graphical representation of link traffic in bps (between interface A and interface Z) that has been collected over a period. This historical data provides you valuable insights into past trends and patterns. Click the pin icon to pin the page anywhere on the screen so that you can continuously monitor the historic data

    Note: For Routing Director to display the link traffic graph, you must have imported a production network along with data. Also, ensure that you have loaded the statistic file from the View Stats page (Planning > Networks > Offline Models > Model-Name > More > View Stats). For more information, see Traffic Matrix Workflow.

  • From the More list, you can perform the following tasks:

    Note:

    You can also right-click a link to view the same options.

    • View details about a link—To view details tab and interface stats tab:

      • Hover over a link row in the table and click the Details icon.

      • Select the link on the table and click More > Show Detail. On the Link - Device A to Device Z page that appears, you can view the Interface Stats tab and the Details tab.

      On the Interface Stats tab, you can view the device name, interface name, management IP address, available bandwidth, used bandwidth, collected interface utilization, computed demand utilization, and computed tunnel utilization of ingress device (Node A) and egress device (Node Z).

      On the Details tab, you can view the link ID, link index, live status, operational status, and properties of ingress device (Node A) and egress device (Node Z) in detail. See Table 1

      The Link - Device A to Device Z page is movable soyou can pin it anywhere on the screen.

  • Download link-related information—Click Download to download detailed information about all the existing links in the topology, in CSV format.

  • Add links to the network model—Click + to add new links. For more information see Create a Link (Planner).

  • Edit a link—To edit a link, select the link and click the edit icon to open the Edit Link page. After you edit, click Submit. A message confirms that the edit request is sent.

    Note:

    You cannot edit the name of a link.

  • Delete a link—To delete a link, select the link and click the delete icon. A message confirms that the link is deleted.

Table 1: Fields on the Link Table
Fields Description
Name Displays the name of the link.
Device A Displays the name/host name of the device on one end of the link.
Device Z Displays the name/host name of the device on the other end of the link.
Status Displays the status of the link.
IP A Displays the IPv4 address of Device A's interface, which connects to this link.
IP Z Displays the IPv4 address of Device Z's interface, which connects to this link.
Interface A Displays the name of Device A's interface which connects to this link.
Interface Z Displays the name of Device Z's interface which connects to this link.
Bandwidth A Displays the bandwidth (in bps) of Device A's interface that connects to this link.
Bandwidth Z Displays the bandwidth (in bps) of Device Z's interface that connects to this link.
Description Displays the description you added at the time of link creation.
TE Metric A TE Metric assigned to interface A. Indicates the cost of traversing the link from Device A to Device Z for traffic engineered paths.

The value is inherited from the IGP TE metric.
TE Metric Z TE Metric assigned to interface Z. Indicates the cost of traversing the link from Device Z to Device A for traffic engineered paths.

The value is inherited from the IGP TE metric.
Admin Group A Displays one or more admin group bits assigned to Interface A.

This information is used for computing tunnel paths with admin group constraints.
Admin Group Z Displays one or more admin group bits assigned to Interface Z.

This information is used for computing tunnel paths with admin group constraints.
RSVP BW A Displays the RSVP bandwidth of Device A.
RSVP BW Z Displays the RSVP bandwidth of Device Z.
IS-IS L1 A Displays the IS-IS area level (L1) metric assigned to Interface A.

Indicates cost of traversing the link from Device A to Device Z for IS-IS-routed traffic.
IS-IS L1 Z Displays the IS-IS area level (L1) metric assigned to Interface Z.

Indicates cost of traversing the link from Device Z to Device A for IS-IS-routed traffic.
IS-IS L2 A Displays the IS-IS area level (L2) metric assigned to Interface A.

Indicates cost of traversing the link from Device A to Device Z for IS-IS routed traffic.
IS-IS L2 Z Displays the IS-IS area level (L2) metric assigned to Interface Z.

Indicates cost of traversing the link from Device Z to Device A for IS-IS-routed traffic.
IS-IS TE A IS-IS TE Metric assigned to interface A.

Indicates the cost of traversing the link from Device A to Device Z for traffic engineered paths.
IS-IS TE Z

IS-IS TE Metric assigned to interface Z.

Indicates the cost of traversing the link from Device Z to Device A for traffic engineered paths.
OSPF Metric A

OSPF Metric assigned to Interface A.

Indicates cost of traversing the link from Device A to Device Z for OSPF-routed traffic.
OSPF Metric Z

OSPF Metric assigned to Interface Z.

Indicates cost of traversing the link from Device Z to Device A for OSPF-routed traffic.
OSPF TE A OSPF TE Metric assigned to interface A.

Indicates the cost of traversing the link from Device A to Device Z for traffic engineered paths.
OSPF TE Z OSPF TE Metric assigned to interface Z.

Indicates the cost of traversing the link from Device A to Device Z for traffic engineered paths.
SR Indicates whether Segment Routing (SR) is enabled for the link.

A green check mark confirms that SR is enabled on the link.
SID A Displays the SID label for the ingress device.
SID Z Displays the SID label for the egress device.
Collected Interface Utilization AZ Displays the percentage of bandwidth on device A's interface that is utilized by the actual measured traffic traversing the link from device A to device Z.

The Interface utilization values in the table are rounded to two decimal places. You can view the exact value in the Details tab.
Collected Interface Utilization ZA Displays the percentage of bandwidth on device Z's interface that is utilized by the actual measured traffic traversing the link from device Z to device A.

The Interface utilization values in the table are rounded to two decimal places. You can view the exact value in the Details tab.
Computed Demand Utilization AZ Displays the percentage of the bandwidth on device A's interface that is used by the demands traversing the link from device A to device Z.

The Demand utilization values in the table are rounded to two decimal places. You can view the exact value in the Details tab.
Computed Demand Utilization ZA Displays the percentage of the bandwidth on device Z's interface that is used by the demands traversing the link from device Z to device A.

The Demand utilization values in the table are rounded to two decimal places. You can view the exact value in the Details tab.
Computed Tunnel Utilization AZ Displays the percentage of RSVP bandwidth on device A's interface that is used by the tunnels traversing the link from device A to device Z.

The Tunnel utilization values in the table are rounded to two decimal places. You can view the exact value in the Details tab.
Computed Tunnel Utilization ZA Displays the percentage of RSVP bandwidth on device Z's interface that is used by all the tunnels traversing the link from device Z to device A.

The Tunnel utilization values in the table are rounded to two decimal places. You can view the exact value in the Details tab.

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