Network architecture for content backup, restoring, and sharing

A system comprising:

• a processor to select one of a plurality of proxy network devices based on a proximity of each of the plurality of network devices to a user device;
• wherein each of the plurality of proxy network devices includes:
• a receiver to receive, via a first communication link, a plurality of files from the user device, wherein the first communication link introduces no errors into some of the sent files and introduces one or more errors into others of the sent files;
• a processor to determine which of the plurality of files were received without error and which of the plurality of files were received with the one or more errors;
• and
• a transmitter to:
• send an error message to the user device indicative of at least one file of the plurality of files received with the one or more errors, wherein the receiver is further configured to receive, responsive to the error message, the at least one file re-sent from the user device via the first communication link;
• and
• send each of the plurality of files received without error and the re-sent at least one file, and none of the plurality of files received with the one or more errors, to a second network device, different from the plurality of proxy network devices, via a second communication link for storage.

A method comprising:

• selecting one of a plurality of proxy network devices based on a proximity of each of the plurality of proxy network devices and a user device;
• receiving, in the selected proxy network device from the user device, a list of current files, wherein the list of current files includes unique file identifiers, each associated with a corresponding one of the current files;
• comparing, in the selected proxy network device, the list of current files to a list of previously copied files, wherein the list of previously copied files includes unique file identifiers, each associated with a corresponding one of the previously copied files, and wherein the list of previously copied files is associated with the user device;
• generating a backup list of files based on the comparison;
• sending the backup list from the selected proxy network device to the user device;
• receiving, at the selected proxy network device from the user device via a first communication link, files listed in the backup list;
• determining, based on errors introduced by the first communication link into some of the received files, which of the received files are valid and which of the received files are invalid;
• transmitting, via a second communication link, the valid files and none of the invalid files to a backup network device separate from the plurality of proxy network devices;
• sending an error message indicative of the invalid files to the user device;
• and
• receiving, responsive to the error message and via the first communication link, re-sent files corresponding to the invalid files.

A system, comprising:

• a user device including:
• a memory to store a plurality of files;
• a processor to generate a list of current files stored in the memory device, wherein the list of current files includes unique file identifiers, each associated with a corresponding one of the current files;
• a transmitter to send the list of current files to one of a plurality of proxy network devices, wherein the one of the plurality of proxy network devices is selected based on a proximity of each of the plurality of proxy network devices to the user device;
• and
• a receiver to receive a backup list generated by comparing the list of current files to a list of previously copied files including unique file identifiers, each associated with a corresponding one of the previously copied files;
• and
• wherein the transmitter is further configured to:
• send the files listed in the backup list from the user device to the one of the plurality of proxy network devices,
• receive, from the one of the plurality of proxy network devices, an indication that at least one of the sent files was not correctly received at the one of the plurality of proxy network devices, and
• repeat, responsive to the indication, sending of the at least one sent file until an indication that the at least one sent file has been correctly received at the one of the plurality of proxy network devices is received at the user device.