Patent ID: 9723073
Date: 2017-08-01
CPC Classifications: H04L

Claim:
1. An apparatus comprising: a first network interface to at least a first network and a second interface to at least a second network, the first network communicatively connecting between the apparatus and a plurality of content sources and the second network communicatively connecting between the apparatus and a plurality of user nodes; a deep-packet-inspection (DPI) unit that identifies at least a source of content containing content eligible for storing by the apparatus, the DPI unit further inspecting one or more packets provided from the identified at least a source of content over the first network, each packet having at least a specific source address and a specific destination address; wherein the identifies at least a source of content comprises inspection of one out of a predefined number of packets of packet flows from the traffic on the second network; wherein the predefined number is determined respective of a symmetric hash function that uses source addresses and destination addresses of packet flows; a storage for storing at least a portion of the content from the identified at least a source of content; and a content delivery unit that receives a request over the second network for requested content from the identified at least a source of content and responsive thereto provides the requested content, or portions of the requested content, from the storage to the second network if the requested content, or portions of the requested content, is stored in the storage, or otherwise sending the request over the first network to the identified at least a source of content for the requested content, or missing portions of the requested content.