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Old 12-01-2010, 03:48 AM   #1
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Will NFS using SCTP as transport layer protocol , improve its performance ?


At present NFS uses either TCP/UDP as transport layer protocol for its communication .
Since SCTP is better than TCP for following issues ,
-- TCP provides both reliable data transfer and strict order-of- transmission delivery of data. Some applications need reliable transfer without sequence maintenance, while others would be satisfied with partial ordering of the data. In both of these cases, the head-of-line blocking offered by TCP causes unnecessary delay.

-- The stream-oriented nature of TCP is often an inconvenience.Applications must add their own record marking to delineate their messages, and must make explicit use of the push facility to ensure that a complete message is transferred in a reasonable time.

-- The limited scope of TCP sockets complicates the task of providing highly-available data transfer capability using multi-homed hosts.

-- TCP is relatively vulnerable to denial-of-service attacks, such as SYN attacks.

Will using SCTP instead of TCP for NFS communication , improve performance of NFS ?

Does the above context make sense w r t performance improvement ?
Old 12-03-2010, 08:57 PM   #2
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If you design new NFS and replace TCP with SCTP, it could improve NFS performance. But there is a lot of way to improve NFS performance except SCTP solution.


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