iperf3: error - socket buffer size not set correctly
Question
server:
iperf3 -s -i 1 -fM
client:
# iperf3 -c 192.168.43.98 -t 120 -w 1M
Connecting to host 192.168.43.98, port 5201
iperf3: error - socket buffer size not set correctly
Answer
iperf3 server side
sudo sysctl net.core.rmem_max=1048576
sudo sysctl net.core.wmem_max=1048576
# iper3 client
sysctl net.core.wmem_max=1048576
sysctl net.core.rmem_max=1048576