How to test sctp load-balancing with loxilb ?

[CloudyBytes10]

Hello All,

I was able to do some basic sctp load-balancer test with loxilb using tools like socat and sctp_test. Is there a way to check sctp performance ? iperf in ubuntu20.04 does not seem to support sctp option. Appreciate any pointers regarding this.

[TrekkieCoder]

It is possible to use iperf3 but it is not reliable/stable as per this issue

[UltraInstinct14]

There are various open-source tools to test sctp as OP mentioned. Just a recap for interested readers :

1. sctp_test (Part of lksctp-tools in Ubuntu)

Server usage :

sctp_test -H 32.32.32.1 -P 5001 -l

• -H server_IP, -P listening port

Client usage :

sctp_test -H 100.100.100.1  -h 32.32.32.1 -p 5001 -s -c 1 -M 100

• -H local_IP, -h server_IP, -p target port

2. socat tool

Server usage :

socat sctp-listen:5001,fork STDOUT

Client usage :

echo "Hello" | socat - sctp:20.20.20.1:5001

3. iperf3 tool

Server usage :

iperf3 -s -p 8080 

Client usage :

iperf3 -c 88.88.88.1 -i1 -t10 --sctp

• iperf3 is reportedly unsable for sctp testing