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
0%