tweaking TCP SACK ON

Question

LCosenza Author

Level 2

260 points

tweaking TCP SACK ON

Hi

How can I turn SACK on

thank's

Luigi

PowerBook G4, Mac OS X (10.4.6)

Posted on Apr 25, 2006 11:30 AM

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Answer 1

LCosenza Author

Level 2

260 points

Apr 25, 2006 6:52 PM in response to LCosenza

Ok Iet me refrase my question?

Does anybody know if Selective Acknowledgement (SACK) TCP option is implemented in MAC OSX 10.4.6 ? If yes how can we turn it on?

thank's

Luigi

PowerBook G4 Mac OS X (10.4.4)

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Answer 2

Apr 29, 2006 4:21 AM in response to LCosenza

Sorry, Mac OS X does not support TCP selective ACK (SACK, rfc 2018). At least as of 10.4. The weird thing is, the Darwin source has it available, it's just not compiled into the kernel.

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Answer 3

LCosenza Author

Level 2

260 points

Apr 29, 2006 6:03 PM in response to Michael Newbery

Michael

Thank's for your answer, there is any way that we can ask Apple or put some user pressure, that this feature be implemented in a Next release. It really makes a difference specially if you leave in countries with lower quality lines than the USA.
I will post a feature request to apple support I am sure there is a form to do this

thank you again

Luigi

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