···11TCP protocol22============3344-Last updated: 21 June 200544+Last updated: 9 February 20085566Contents77========···5252The method that is used to determine which congestion control mechanism is5353determined by the setting of the sysctl net.ipv4.tcp_congestion_control.5454The default congestion control will be the last one registered (LIFO);5555-so if you built everything as modules. the default will be reno. If you5656-build with the default's from Kconfig, then BIC will be builtin (not a module)5757-and it will end up the default.5555+so if you built everything as modules, the default will be reno. If you5656+build with the defaults from Kconfig, then CUBIC will be builtin (not a5757+module) and it will end up the default.58585959If you really want a particular default value then you will need6060to set it with the sysctl. If you use a sysctl, the module will be autoloaded