US 2024/0267328 A1 · Filtering VPN and VRF Routes on Import and Export

Abstract

User commands to export and import routes between a customer-facing VRF and a core-facing VRF in a PE device can include two filters. An export command installs VPN paths in the core-facing VRF based on VRF paths in a customer VRF. An export command includes a filter that selects VRF paths in the customer VRF from which VPN paths are generated. An editor function edits the generated VPN paths prior to being stored in the core-facing VRF. Conversely, an import command includes a filter that selects VPN paths in the core-facing VRF from which VRF paths are generated. An edit function edits the generated VRF paths prior to being stored in the customer VRF.

Claims20

Dependent claims

A method in a network device for importing and exporting routes between a source virtual routing and forwarding element (VRF) running on the network device and a target VRF running on the network device, the method comprising:

obtaining a route from a routing table in the source VRF;
matching contents of the obtained route with criteria in a filter, wherein the criteria in the filter match on attributes of routes contained in the routing table of the source VRF;
in response to the contents of the obtained route matching at least some of the criteria in the filter:
generating an intermediate route from the obtained route;
modifying the intermediate route according to a set of editing instructions;
and
storing the modified intermediate route in a routing table in the target VRF;
and
repeating the foregoing for each route in the source VRF.

6 more elements

Dependencies are inferred from the claim text.

Filtering VPN and VRF Routes on Import and Export

Life of this patent

Filtering VPN and VRF Routes on Import and Export

Life of this patent

Abstract

Claims20