System and Method for Controlling Multicast Geographic Distribution

摘要

A content distribution network includes first and second controllers, and multicast enabled routers. The first controller is configured to select a multicast channel for distributing content, to determine that the content has a geographic restriction associated with a restricted area in the content distribution network, to link an exclusion policy for the content to the multicast channel while the multicast channel provides the content, and to deny a request for the content from a client system within the restricted area based on the exclusion policy. The second controller is configured to distribute the exclusion policy to the multicast enabled routers including a first router configured to store the exclusion policy, and to ignore a multicast join message from the client system within the restricted area based on the exclusion policy.

主权项

1. A system for controlling multicast geographic distribution, the system comprising:
a memory that stores instructions; a processor that executes the instructions to perform operations, the operations comprising:
selecting a multicast channel for distributing content in a content distribution network;identifying an access zone in the content distribution network, wherein the access zone applies a geographic restriction to content;distributing an exclusion policy for the content to a multicast enabled router;denying, based on the exclusion policy, a request for the content from a client system located within an area subject to the geographic restriction that is applied by the access zone; andignoring, at the multicast enabled router, a multicast join message from the client system based on the exclusion policy, wherein the multicast join message is ignored from the client system if an address of the client system matches a prefix contained within the exclusion policy.