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Is there any performance impact, if we tune kernel SCTP (/proc/sys/net/sctp/sack_timeout) parameter? [CLOSED]

+6 votes

Can we set the same to 0? If so, how??

closed with the note: Solved
posted Feb 4, 2014 by Gurpreet Singh Matharoo

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2 Answers

+2 votes

Policy on that sysctl won't let you set the sack timeout below 1, as a timeout of 0 is nonsense, and would cause the sack timer to run near constantly.

answer Feb 4, 2014 by anonymous
+1 vote

SACK is selective ack, zero does not make any sense so don't know if system will allow it or not say system allows then you will receive the SACK for every message which will increase the message exchange between src and destination.

But setting it to zero will defy the purpose of SCTP ideally set it to 50ms or more.

answer Feb 4, 2014 by Salil Agrawal
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0 votes

I want to understand in which cases SCTP abort occurs and how it is get resolved ?