Packetloss is a tool for measuring... well, packet loss. It operates in two modes, client and server.
In client mode, packetloss continuously sends UDP packets with an incrementing numeric ID and expects acknowledgements for each packet that it sends. Packetloss will keep a count of sent packets and received acknowledgements and periodically print statistics showing how many packets were sent, how many acked, and how many acks were expected but never received.
In server mode, packetloss listens for UDP packets, and upon receiving (valid) packets it sends back a response acknowledging that it received that packet. If it received a packet with a serial number that is higher than expected, it infers that it has missed packets and will record that.
Packetloss requires either a packetloss.yml or config parameters to be passed via command line.
packetloss.yml
key: "A RANDOM KEY" # used for HMAC
local: ":6666" # local address to listen on
remote: "localhost:6666" # remote address to send packets topacketloss client for client mode
packetloss server for server mode