×

Method and node entity for enhancing content delivery network

  • US 9,692,849 B2
  • Filed: 12/18/2014
  • Issued: 06/27/2017
  • Est. Priority Date: 02/05/2010
  • Status: Active Grant
First Claim
Patent Images

1. A non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to carry out a method for ensuring that at least a predetermined number of copies of a content object are kept stored in a network comprising a plurality of cache nodes for storing copies of content objects, the method comprising:

  • assigning each of a plurality of copies of content objects a value of a ranking state, wherein the value of the ranking state indicates whether the copy is deletable or non-deletable, and wherein at least one copy of each content object is assigned with the value non-deletable;

    changing the ranking state value for at least one copy of at least one content object from non-deletable to deletable in a cache node, said at least one copy being eligible for the value deletable only if a deletable copy of said at least one content object in another cache node is eligible for the value non-deletable.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×