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Configuring an LSP Across ASs
If you need to configure an LSP across more than one AS, include the inter-domain statement as a part of the LSP configuration. This statement allows the router to search for routes in the IGP database. You need to configure this statement on routers that might be unable to locate a path using intra-domain CSPF (by looking in the traffic engineering database (TED)). When you configure inter-area LSPs, the inter-domain statement is required.
Complete the following step to configure an LSP across multiple ASs:
Include the inter-domain statement in the LSP configuration:
You can configure this statement at the following hierarchy levels:
- [edit protocols mpls label-switched-path label-switched-path-name]
- [edit logical-systems logical-system-name protocols mpls label-switched-path label-switched-path-name]
