Patent ID: 8804740

Claim:
A method for handling fragmented packets distributed across intermediary devices of a cluster, the method comprising: (a) receiving, by a first intermediary device of a cluster comprising a plurality of intermediary devices, a first fragmented packet of a plurality of fragmented packets; (b) transmitting the first fragmented packet to the second intermediary device, by the first intermediary device, responsive to a hash of a source internet protocol (IP) address and a destination IP address of the first fragmented packet identifying a second intermediary device of the cluster as an owner of fragmented packets for the plurality of fragmented packets; (c) receiving, by a third intermediary device of the cluster, a second fragmented packet of the plurality of fragmented packets; (d) transmitting the second fragmented packet to the second intermediary device, by the third intermediary device, responsive to the hash of the source IP address and the destination IP address of the second fragmented packet identifying the second intermediary device as the owner of fragmented packets for the plurality of fragmented packets; (e) collecting, by the second intermediary device, the first fragmented packet and the second fragmented packet of the plurality of fragmented packets; (f) determining, by the second intermediary device, that all the fragments of the plurality of fragments have been collected by the second intermediary device; and (g) computing, by the second intermediary device, a second hash of a four tuple of the plurality of fragmented packets the four tuple comprising the source IP, the destination IP, a source port and a destination port.