SYSTEM AND METHOD FOR CACHING POPULAR CONTENT RESPECTIVE OF A CONTENT STRONG SERVER IN AN ASYMMETRICAL ROUTING TOPOLOGY

• US 20170019316A1
• Filed: 03/23/2016
• Published: 01/19/2017
• Est. Priority Date: 08/22/2010
• Status: Active Grant

• Current Assignee: Qwilt, Inc.
• Original Assignee: Qwilt, Inc.
• Inventors: FINKELMAN, Ori, LERNER, Udi, ALPER, Adan, EINAV, Yoav, GRESSEL, Yoav, AVRAHAMI, Hagai
• Granted Patent: US 10,097,428 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 43/028 by filtering
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70

Abstract

A computerized method of delivering popular content of a service delivery apparatus (SDA) in an asymmetrical network topology. The method comprises receiving a first acquisition request for content from a user node (UN) over an upstream data link, the request comprising at least a content identification (CID). An instruction is sent to the UN to redirect content requests to the SDA. A second acquisition request is sent from the SDA to a content source (CS) for the content requested by the first acquisition request, upon determination that the downstream data link between the UN and the CS is inaccessible to the SDA, the request including at least the CID. The content is received by the SDA from the CS. The received content from the SDA is sent to the UN.

Claims

1. A computerized method of delivering popular content of a service delivery apparatus (SDA) in an asymmetrical network topology, the method comprising:

receiving a first acquisition request for content from a user node (UN) over an upstream data link, the request comprising at least a content identification (CID);

sending an instruction to the UN to redirect content requests to the SDA;

sending a second acquisition request from the SDA to a content source (CS) for the content requested by the first acquisition request, upon determination that the downstream data link between the UN and the CS is inaccessible to the SDA, the request including at least the CID;

receiving the content by the SDA from the CS; and

sending the received content from the SDA to the UN.

2. The computerized method of claim 1, wherein the request for content from the user node further comprising:

any of a content source (CS) and a session ID.

3. The computerized method of claim 1, further comprising:

determining if the requested content needs to be acquired.

4. The computerized method of claim 3, further comprising:

storing the content in a storage of the SDA upon determination that the content needs to be acquired.

5. A service delivery apparatus (SDA) for delivering popular content in an asymmetrical network topology, comprising:

a first network interface to sniff traffic between at least a first portion of a network and at least a second portion of a network;

a deep-packet-inspection (DPI) unit coupled to the first network interface and configured to identify at least a source of content of the sniffed traffic, the DPI unit further inspecting one or more packets, through the first network interface from the identified source of content, each packet having at least a specific source address and a specific destination address;

a storage for storing at least information of the content received through the first network interface;

a second network interface configured to communicate with the at least a first portion of the network and the at least a second portion of the network; and

a processor; and

wherein the processor is configured to cause the SDA to send an instruction to the UN to redirect content requests to the SDA on receiving a request for the content from a user node (UN), the request comprising at least a content identification (CID),

wherein the processor is configured to send a request to a content source (CS) for the content, the request including the CID upon determination that the downstream data link between the UN and the CS is inaccessible to the SDA.

6. The SDA of claim 5, wherein the request for content from the user node further comprising:

any of a content source (CS) and a session ID.

7. The SDA of claim 5, wherein the SDA is connected in the first network interface in a sniffer mode.

8. The SDA of claim 5, wherein the SDA is connected in the first network interface in a “

bump-in-a-wire”

mode.

9. The SDA of claim 5, wherein the DPI is configured with data types to look for in a data packet.

10. The SDA of claim 5, wherein the processor is further configured to cause the SDA to determine if the requested content needs to be stored.

11. The SDA of claim 10, wherein the processor if further configured to cause the SDA to store the content in the storage of the SDA.