Patent ID: 7386627
Filing Date: 2008-06-10
Classification: H04L

Abstract:
1. A computer-implemented method comprising: retrieving data for a streaming media packet from a cache in a network caching device, wherein the streaming media packet includes meta data and a payload; computing a preliminary checksum based on the retrieved data; combining the preliminary checksum with a pre-computed checksum to form a final checksum, the pre-computed checksum having been computed in conjunction with an operation of storing the data in the cache prior to said retrieving, wherein the pre-computed checksum is based on a first portion of the data and the preliminary checksum is based on a second portion of the data, the first portion and the second portion of the data comprising different portions of the payload of the streaming media packet, said different portions of the payload being mutually exclusive, and wherein a first portion of the streaming media packet includes one or more complete data words of the payload and no partial data words of the payload, and a second portion of the streaming media packet includes one or more partial data words of the payload and no complete data words of the payload; and using the final checksum to form a final streaming media data packet to be sent to a recipient.