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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: ISCSI: Urgent pointer consensusAt 12:53 PM 11/14/2000 -0800, Matt Wakeley wrote: >Daniel Smith wrote: > ... >The benefit to analyzers was only a side benefit. The main reason is to place >data in memory where it belongs in the presence of lost frames. See my note >"ISCSI: Why the use of the Urgent Pointer" You can do that by writing the payload of TCP packets in memory at an offset given by the "Sequence Number". This will leave holes in the memory for missing packets. You will fill these holes, when packets are received correctly. No need to copy or move a single byte. -- Silvano Silvano Gai Cisco Systems Empowering the Internet Generation 170 West Tasman Drive Tel. (408) 527 2690 San Jose, CA, 95134-1706 Fax. (408) 527 2690 sgai@cisco.com
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