Method and apparatus for maintaining connectivity in a network

• US 20090138555A1
• Filed: 11/26/2008
• Published: 05/28/2009
• Est. Priority Date: 11/26/2007
• Status: Abandoned Application

• Current Assignee: One Laptop Per Child Association Inc.
• Original Assignee: One Laptop Per Child Association Inc.
• Inventors: Negroponte, Nicholas, Bletsas, Michail
• Application Number:
  US12/315,042
• Publication Number:
  US 20090138555A1
• Time in Patent Office: Days
• US Class Current: 709/204
• CPC Class Codes: G06F 15/16 Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs coordinating program control therefor G06F9/52; in regulating and control system G05B
• CPC Class Codes: H04L 49/90 Buffering arrangements

Abstract

A method and system for maintaining connectivity in a network. The network includes a plurality of computational devices. A first computational device includes a main processor and a co-processor. The first computational device receives the at least one data frame from a second computational device and forwards the at least one data frame to a third computational device by using the co-processor without intervention from the main processor by using network protocols corresponding to layer-2 and layer-1 of Open System Interconnection (OSI) reference model.

Claims

1. A method of maintaining connectivity in a network, the network comprising a plurality of computational devices, wherein a first computational device of the plurality of computational devices forwards at least one data frame from a second computational device of the plurality of computational devices to a third computational device of the plurality of computational devices, the first computational device comprising a main processor and a co-processor, the method at the first computational device comprising:

(a) receiving the at least one data frame from the second computational device;

(b) processing the at least one data frame by the co-processor, wherein the processing is free of intervention of the main processor; and

(c) forwarding the at least one data frame to the third computational device by the co-processor.

2. The method according to the claim 1, wherein the co-processor processes information corresponding to layer-2 and layer-1 of Open System Interconnection (OSI) reference model.

3. The method according to the claim 2, wherein the main processor processes information corresponding to layer-3, layer-4, layer-5, layer-6 and layer-7 of the OSI reference model.

4. The method according to the claim 2, wherein the co-processor forwards the at least one data frame to the third computational device by using network protocols corresponding to the layer-2 and layer-1 of the OSI reference model.

5. Apparatus for maintaining connectivity in a network of plurality of computational devices including at least a first, a second and a third computational devices, the first computational device of the plurality of computational devices forwarding at least one data frame from the second computational device of the plurality of computational devices to the third computational device of the plurality of computational devices, the first computational device comprising:

(a) a main processor configured to process information corresponding to layer-3, layer-4, layer-5, layer-6 and layer-7 of Open System Interconnection (OSI) reference model; and

(b) a co-processor configured to process information corresponding to layer-2 and layer-1 of the OSI reference model.

6. The apparatus according to claim 5, wherein the co-processor of the first computational device is further configured to forward the at least one data frame to the third computational device by using network protocols corresponding to the layer-2 and layer-1 of the OSI reference model.

7. The apparatus according to claim 5, wherein the first computational device further comprises a network adapter configured to:

(a) receive the at least one data frame from the second computational device;

(b) forward the at least one data frame to the co-processor; and

(c) forward the at least one data frame from the co-processor to the third computational device.

8. The apparatus according to claim 5, wherein the power required by the co-processor of the first computational device to operate is less than the power required by the main processor to operate.

9. The apparatus according to claim 5 wherein the first computational device is configured to form a layer-2 mesh network with at least one of the second computational device and the third computational device by using the co-processor.