-
公开(公告)号：EP1609063A4
公开(公告)日：2009-03-11
申请号：EP03816813
申请日：2003-07-21
Applicant: IBM
Inventor： FREIMUTH DOUGLAS , MRAZ RONALD , NAHUM ERICH , PRADHAN PRASHANT , SAHU SAMBIT , TRACEY JOHN
CPC classification number: H04L69/16 , H04B1/74 , H04L1/1809 , H04L1/1835 , H04L1/1874 , H04L69/12 , H04L69/161 , H04L69/163 , H04L69/40
Abstract: The present invention provides a method, computer program product, and data processing system for efficiently recovering state and performing failover of a network offload engine (904). The present invention distinguishes between the hard state and the soft state of a protocol. Hard state is state information that, when lost, leads to incorrect protocol behavior. Soft state is state information that may be lost or become inconsistent without loss of correctness. The present invention ensures correctness by always being able to recover (1002) the hard state of the protocol. A preferred embodiment of the present invention performs a failover of a network offload engine (904) by temporarily blocking (908) the reception of network packets, recovering (1002) hard state from host information, resuming network operation using a substitute network offload engine (906), and recovering (1008) soft state from the subsequent network activity.
-
公开(公告)号：AT522865T
公开(公告)日：2011-09-15
申请号：AT03816813
申请日：2003-07-21
Applicant: IBM
Inventor： FREIMUTH DOUGLAS , MRAZ RONALD , NAHUM ERICH , PRADHAN PRASHANT , SAHU SAMBIT , TRACEY JOHN
Abstract: The present invention provides a method, computer program product, and data processing system for efficiently recovering state and performing failover of a network offload engine. The present invention distinguishes between the hard state and the soft state of a protocol. Hard state is state information that, when lost, leads to incorrect protocol behavior. Soft state is state information that may be lost or become inconsistent without loss of correctness. The present invention ensures correctness by always being able to recover the hard state of the protocol. A preferred embodiment of the present invention performs a failover of a network offload engine by temporarily blocking the reception of network packets, recovering hard state from host information, resuming network operation using a substitute network offload engine, and recovering soft state from the subsequent network activity.
-
公开(公告)号：AU2003259192A1
公开(公告)日：2004-11-23
申请号：AU2003259192
申请日：2003-07-21
Applicant: IBM
Inventor： TRACEY JOHN , FREIMUTH DOUGLAS , MRAZ RONALD , NAHUM ERICH , PRADHAN PRASHANT , SAHU SAMBIT
Abstract: The present invention provides a method, computer program product, and data processing system for efficiently recovering state and performing failover of a network offload engine. The present invention distinguishes between the hard state and the soft state of a protocol. Hard state is state information that, when lost, leads to incorrect protocol behavior. Soft state is state information that may be lost or become inconsistent without loss of correctness. The present invention ensures correctness by always being able to recover the hard state of the protocol. A preferred embodiment of the present invention performs a failover of a network offload engine by temporarily blocking the reception of network packets, recovering hard state from host information, resuming network operation using a substitute network offload engine, and recovering soft state from the subsequent network activity.
-
-
Search Results
3
records
(took 0.035 seconds)
