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To: Rink who wrote (201348)	6/9/2006 10:02:38 AM
From: fastpathguru	Read Replies (1) \| Respond to of 275872

Re: TOE... en.wikipedia.org TCP Offload Engine or TOE is a technology for the acceleration of TCP/IP, specifically by moving TCP/IP processing to a separate dedicated sub-system from the main host CPU, the overall system TCP/IP performance is improved. . . . Gigabit TCP communication using software processing alone is enough to fully load a 2.4 GHz Pentium 4 processor, which results in little or no processing resources left for the applications to run on the system. AMD announced already (http://www.itjungle.com/breaking/bn031506-story01.html) that chipsets with TOE are forthcoming for Socket F. While being much more important for high BW servers, I bet this technology will quickly trickle down all the way to thin clients. fpg

To: Rink who wrote (201348)	6/9/2006 10:10:35 AM
From: Dan3	Respond to of 275872

Re: re: TCP Offload Engine It's the difference between a $10 NIC and a $500+ NIC. :-) The problem it solves is that processing TCP/IP packets takes a fair amount of compute power. At 10Gbe, where ISCSI becomes attractive, just processing the TCP/IP I/O stream can saturate a high end CPU. By offloading that processing (producting and validating packet checksums, etc.) to the card, that load is kept off the CPU and local crossbar connections. So you either have a TOE engine, or you lose two cores (one at each end) of every host and storage system running ISCSI. Some interesting papers are here: chelsio.com