Packet loss during iperf3 test - Githubissues

srsran / srsRAN_4G

Open source SDR 4G software suite from Software Radio Systems (SRS) https://docs.srsran.com/projects/4g

https://www.srsran.com

GNU Affero General Public License v3.0

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Packet loss during iperf3 test #815

Open ashiqpathan opened 2 years ago

ashiqpathan commented 2 years ago

Issue Description

I have configured 5G NSA END-to-END(https://docs.srsran.com/en/latest/app_notes/source/5g_nsa_zmq/source/index.html#g-nsa-zmq-appnote). I am using open5gs as the core network. I am able to connect ue to gnb. But using iperf3 I am getting very low throughput and a high data loss. An iperf3 screenshot is given below-

Setup Details

I have a total 3 VM,

in VM1 ran vm--> srsran (enb and ue )
VM2 open5gs control plane
VM3 open5gs UPF all VM running on ubuntu 18.04 LTS.

Behavior

Iperf3 with 100Mbps BW produces high packet loss around 94% drop. What might cause this behavior? Why the throughput is limited ??

brightcheng commented 2 years ago

It could be the issue of ogstun of open5gs. You may try sudo ethtool -s ogstun speed 10000