Systems and methods for using compression histories to improve network performance

摘要

Systems and methods for sharing compression indexes among one or more clusters of devices to improve compression of data transmitted via a plurality of connections. One embodiment includes receiving, by a first device from a second device, an index of entries for a compression history shared between the second device and a third device; each index entry comprising a location identifier of data stored in the second device. The first device receives a data stream intended for a fourth device; and identifies that a portion of the data stream matches an entry of the received index. The first device transmits, to the second device, a location identifier corresponding to the matched entry. The first device receives, from the second device, a portion of the compression history corresponding to the location identifier; and determines the portion of the compression history matches a portion of the data stream. The first device may then transmit, to the fourth device, information identifying the portion of the compression history. This allows communications between the third and fourth device to be compressed according to the compression history originally shared between the first and second devices.