Re: TCP version on the default installation of Debian
"Indika" == Indika Piyasena <ipiyasena@crg.ee.uct.ac.za> writes:
Indika> Hello, I?ve been doing some TCP traces (using tcptrace)
Indika> and noticed that SACKS (Selective Acknowledgments) are
Indika> being sent. I want to confirm that the TCP version that
Indika> I?m running is TCP-SACK. How do I check what version of
Indika> TCP is running?
The recent kernels (I am running 2.4.18) certainly do support
SACK. For example
$ cat /proc/sys/net/ipv4/tcp_sack
1
$
Look for more clues in
/usr/share/doc/kernel-doc-2.4.18/Documentation/networking/ip-sysctl.txt.gz
before diving into the code ;-)
Cheers!
Shyamal
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