FUSO is a fast multi-path transport loss recovery scheme for data centers, which attempts to be both "fast" and "cautious". Currently, FUSO is a kernel transport implementation which is built upon MPTCP’s Linux implementation (v0.90).
For more details about FUSO, please refer to our USENIX ATC 2016 paper "Fast and Cautious: Leveraging Multi-path Diversity for Transport Loss Recovery in Data Centers"
To get started fetch the MPTCP Linux kernel version (v0.90) used as the base for the patch set:
$ git clone git://github.com/multipath-tcp/mptcp
$ cd mptcp
$ git checkout tags/v0.90
Next, download the patch files (i.e. the modified kernel code files). Then copy them in the mptcp kernel folder and overwrite the original files.
Then, you need to compile and install the modified kernel.
FUSO is turned off by default. To enable it:
sysctl net.mptcp.mptcp_rmt=1
sysctl net.mptcp.mptcp_rmt_path_selection=2
FUSO was called RMT at our early stage of implementation. We have implemented two path selection mechanisms for FUSO's multi-path loss recovery. It has been shown that the second one performs better.
Note that you should first turn on MPTCP in order to use FUSO. How to configure MPTCP can be found here.
We have made a minor optimization for the original MPTCP receiving end. Enabling this feature can further improve FUSO's performance. To enable the receiver optimization:
sysctl net.mptcp.mptcp_receive_ofo_optimize=1
The current implementation has not been fully optimized. If you have any questions or suggestions, please email to chen-g11@tsinghua.edu.cn