Twamp Light

Installation

Clone the repo and all its submodules:

git clone --recurse-submodules https://github.com/domoslabs/twamp-light.git 

Then using cmake:

mkdir build
cd build
cmake ..
make

This outputs a client and a server executable.

Optional:

make install

Usage

Requires root access.

To show the help message:

./twamp-light-client -h
./twamp-light-server -h

Details

Format and protocol

The packets are formatted according to RFC5357. If time synchronization is enabled (default behaviour, see help for how to disable), the timestamp field (64bit) will be split into timestamp (32bit)+timesync data (32bit), which breaks the protocol and therefore becomes incompatible with other TWAMP Light implementations.

Sampling

All the arguments that take in multiple values, such as payload size and delay, are sampled uniformly using Marsenne Twister when the client crafts a packet. The server simply reflects packets, and there is therefore no sampling of any sort on the server.