Compression dictionary synchronization method and device

摘要

A compression dictionary synchronization method and device are provided. The method includes: obtaining a synchronization information field of a dictionary entry in a compression dictionary corresponding to data to be sent; judging, according to the synchronization information field, whether a network device at a receiving side has the dictionary entry; and synchronizing the dictionary entry with the network device at the receiving side if the network device at the receiving side does not have the dictionary entry, so that after receiving the data which is to be sent and is compressed by data redundancy elimination according to the dictionary entry, the network device at the receiving side can decompress the compressed data to be sent according to the dictionary entry. Data redundancy is decreased by reducing useless dictionary entry synchronization between devices.