This is an implementation of the LEDBAT congestion control algorithm over TCP using the Linux kernel modular congestion control framework.
The current version is updated to compile under Linux kernel 4.9.x versions. A version working with kernels up to 3.3.x is tagged with a "3.3" tag. The module has not been tested with version in between.
The module currently loads properly but it has not been tested thoroughly.
For more information also visit http://perso.telecom-paristech.fr/~drossi/index.php?n=Software.LEDBAT
- clone the this repository
$ git clone https://github.com/silviov/TCP-LEDBAT.git
- build the module
$ cd TCP-LEDBAT/src
$ make
- load the module
$ sudo insmod tcp_ledbat.ko
After the module has been loaded check "ledbat" should appear among the available congestion control algorithms. You should see something like
$ cat /proc/sys/net/ipv4/tcp_available_congestion_control
cubic reno ledbat
Then you can either use it for all flows by doing
$ sudo sysctl -w net.ipv4.tcp_congestion_control=ledbat
or you can do it on specific sockets via the setsockopt
option. You can see an
example in the utils/client.c
file.
At the top of the source file for the module you can find some constant definitions. By setting their values you can select the level of debugging information printed by the module.
In order to see the messages, however, remember to set the debug level of the kernel to DEBUG with the command
$ sudo sysctl kernel.printk=8