Configure an IS-IS Accept Policy to Apply for a Specific I-SID

Configure an IS-IS accept policy for a specific I-SID number to represent a local or remote Layer 3 VSN, which allows the system to redistribute the remote VSN to the VSN where you applied the filter. An I-SID value of 0 represents the global routing table (GRT).

Note

If the route policy changes, you must re-apply 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.
You must configure a route-map to apply.

Procedure

In the navigation pane, expand Configuration > IP.
Click IS-IS.
Click the Accept Isid tab.
Click Insert.
In the Isid field, specify the SPBM nickname.
Select enable in the Enable check box to enable the filter.
In the PolicyName field, specify the route-map name.
Click Insert.

Accept Isid field descriptions

Use the data in the following table to configure the Accept Isid tab.


Name	Description
Isid	Configures a specific I-SID number to represent a local or remote Layer 3 VSN to which the IS-IS accept policy applies. Based on the routing policy the system applies, the system redistributes the remote VSN to the VSN where you applied the filter. An I-SID value of 0 represents the global routing table (GRT).
Enable	Enables or disables the I-SID entry. You must enable the value to filter. The default is disabled.
PolicyName	Specifies the route map name. You must configure a policy earlier in a separate procedure.
BackbonePolicyName	Specifies the backbone route map name. You must configure a policy earlier in a separate procedure.