Cisco Crosswork Network Controller 7.2 Traffic Engineering and Optimization

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Cisco Crosswork Network Controller 7.2 Traffic Engineering and Optimization

Create SR-TE policies (PCC-initiated)

Updated: August 4, 2025

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Use this procedure to create explicit or dynamic SR-MPLS or SRv6 segment routing traffic engineering policies.

Before you begin

To create explicit PCC initiated SR-MPLS or SRv6 policies, you must create a Segment IDs list (Services & Traffic Engineering > Provisioning (NSO) > SR-TE > SID-List). An explicit (fixed) path consists of list of prefix or adjacency Segment IDs, each representing a node or link along on the path.

This task creates explicit or dynamic SR-MPLS or SRv6 policies using NSO via the Crosswork Network Controller UI.

Procedure

1.

From the main menu, choose Services & Traffic Engineering > Provisioning (NSO) > SR-TE > Policy.

2.

Click Add icon. This displays the Create SR-TE > Policy window.

Note
You may also click Import icon to import an existing SR-TE policy.
3.

Enter the policy constraints and required values.

Table 1. SR-TE policy configuration

For

Complete these steps

name

Enter a name for this SR-TE policy.

head-end

 Click Add icon to select a node or manually enter the node name.

tail-end

Enter the IP address of the tail-end router.

color

Enter a the SR policy color to identify the traffic. For example: 200.

path

  1. Click Add icon and enter a preference value. For example: 123

  2. For explicit-path, click Add icon to add previously configured SID lists.

  3. For dynamic-path, select the metric you want to minimize and define any applicable constraints (for example, affinity, SRLG exclusion) and disjointness.

srv6

If you are creating an SRv6 policy, enable srv6 and enter the locator details.
4.

Click Dry Run to validate your changes and save them. Crosswork Network Controller will display your changes in a pop-up window.

If your requirements differ from those described in this example, contact Cisco Customer Experience.
5.

When you are ready to activate the policy, click Commit Changes.