Relation between tcp_syncookies and tcp_max_syn_backlog

[Vincent Bernat <bernat@xxxxxxxx>]

Hi!

Some documentations [1] say that there is a relation between 
tcp_syncookies and tcp_max_syn_backlog. The official documentation 
(ip-sysctls.txt) does not say such a thing. I have also looked at 
net/ipv4/syncookies.c and I did not find anything about this. In 
net/ipv4/tcp_ipv4, I also understand that tcp_max_sync_backlog value is 
only used if syncookies are disabled. Could someone confirm me that 
those variables are unrelated?

Thanks!

[1] 
http://www.frozentux.net/ipsysctl-tutorial/chunkyhtml/tcpvariables.html#AEN398
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