Macos – TCP Implementation on Mac OS X

macmacostcp

How can I find the type of TCP running on my Mac OS X? (TCP Reno, Fast TCP, …)

Best Answer

  • Mac OS X apparently supports SACKs, making Reno obsolete...

    net.inet.tcp.sack: 1
    

    vs

    net.inet.tcp.newreno: 0
    

    (from sysctl net | grep net.inet.tcp)

    More here.

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