Kan Cai wrote:
Greetings,
I posted this question on freebsd-question list yesterday, but no replies. So I am just trying my luck here. Thanks in advance.
I've installed the standard FreeBSD 4.11-RELEASE and have realized that the sysctl option for enabling SACK in TCP is not available (net.inet.tcp.do_sack). Additionally, the tcp_sack.c file is not in the /usr/src/sys/netinet so I'm guessing this indicates that I need a patch. Hoping to be able to use SACK in FreeBSD 4.11-RELEASE, I wanted to ask :
1) Is my guess correct (Do I need a patch)? Or is my kernel configuration file missing an option?
2) Assuming I need a patch, what patch is generally recommended for using SACK under TCP in FreeBSD 4.11-RELEASE?
the people who contributed the SACK code contrinuted it only to the 5.x or later relases.
It would be up to someone else to the the back port to 4.x.
Any help would be most appreciated. Thanks,
ken
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