Portus

Portus is an implementation of a congestion control plane (CCP). It is a library that can be used to write new congestion control algorithms in user-space.

Congestion control algorithm implementations live in independent crates which use this library for common functionality. Each algorithm crate provides a binary which runs a CCP with that algorithm activated.

Further documentation is available on docs.rs.

Setup

1. Install rust, and use the nightly toolchain. See http://rust-lang.org/ for details.
2. make. This will build and lint the portus library and bundled algorithm libraries and binaries, and run unit tests.

Notes

• The ipc::netlink and ipc::kp modules will only compile on Linux. If the CCP kernel module (github.mit.edu/nebula/ccp-kernel) is loaded, the test will refuse to run.

Run

Once you've built portus, algorithms can be run as follows:

sudo ./ccp_generic_cong_avoid/target/debug/reno

All algorithms support the --ipc flag, allowing you to specify the method of inter-process communication between the CCP and your datapath of choice. For example, our current implementation of the linux kernel datapath uses netlink sockets, while our implementation of the mtcp/dpdk datapath uses unix sockets.

Individual algorithms may also allow you to set algorithm-specific parameters from the command line. Run with --help to view them.