tcptunnel-relay

HostA--(cloud)[use BBR]--HostM--(cloud)[use CUBIC]--HostB

HostM:relay point

./relay -h 192.168.10.100 -p 1234

HostA:end point

./edge -h 192.168.10.100 -p 1234
ifconfig edge 172.16.0.1/24 up
iperf -s

HostB:end point

./edge -h 192.168.10.100 -p 1235
ifconfig edge 172.16.0.2/24 up
iperf -c 172.16.0.1 -i 1