Patent ID: 7751327
Filing Date: 2010-07-06
Classification: H04L

Abstract:
1. A communication processing system comprising: a packet processing device comprising a plurality of router cluster devices operable as a router which processes a multicast packet, and a plurality of load balancing control devices which control load balancing of the plurality of router cluster devices; wherein said plurality of load balancing control devices are placed remote from said packet processing device; wherein when any of said plurality of load balancing control devices develops a failure, other load balancing control devices that have not failed take over control processing of the device having the failure, wherein each of the plurality of router cluster devices comprises a main processing filter which applies a main processing filter rule to the multicast packet, and a sub-processing filter which applies a sub-processing filter rule to the multicast packet if the multicast packet did not pass the main processing filter, and a session processing unit which performs processing according to a session to which the multicast packet belongs, wherein the multicast packet is abandoned after being processed by the session processing unit if the sub-processing filter rule was applied to the multicast packet and the multicast packet passed the sub-processing filter, and wherein at least one of said plurality of load balancing devices distributes processing of the multicast packet to each of the plurality of router cluster devices of said packet processing device according to a division rule determining which of the plurality of router cluster devices performs a main processing or a sub processing of the multicast packet.