Apply IPv4 IS-IS accept policies globally
Apply IS-IS accept policies globally. Use IS-IS accept policies to filter incoming IS-IS routes the device receives over the SPBM cloud. Accept policies apply to incoming traffic and determine whether to add the route to the routing table.
After you apply the IS-IS accept filters, the device removes and re-adds all routes with updated filters.
IS-IS accept policies are disabled by default.
Note
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After you apply IS-IS accept policies globally the application can disrupt traffic and cause temporary traffic loss. After you configure the IS-IS accept policies value to Apply, the device reapplies the accept policies, which deletes all of the IS-IS routes, and adds the IS-IS routes again. You should make all the relevant accept policy changes, and then apply IS-IS accept policies globally at the end.
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If the route policy changes, you must reapply the IS-IS accept policy, unless it was the last sequence in the configuration.
Before you begin
Enable IS-IS globally.
Ensure the manual area exists.
Ensure the IP IS-IS filter exists.
Procedure
- In the navigation pane, expand .
- Select IS-IS.
- Select the Accept Global tab.
- Select a name from the list or enter name in the DefaultPolicyName field, to specify the route policy name for the default filter.
- Select Apply to apply the default policy.
Accept Global Field Descriptions
Use the data in the following table to use the Accept Global tab.
Name |
Description |
---|---|
DefaultPolicyName |
Specifies the route policy name for the default filter. |
DefaultBackbonePolicyName |
Specifies the backbone host route policy name for the default filter. |
Apply |
Applies the default policy when you configure the field to apply. The device only activates the default policy if the route map (the default policy name) has a value. If you do not select apply, the device takes no action. The GRT always returns no action. |