Low speed on mgbe1_0, 10GbE, 10GBASE-T port when running iperf

Autonomous Vehicles DRIVE AGX Orin DRIVE AGX Orin General
1

Please provide the following info (tick the boxes after creating this topic):
Software Version
DRIVE OS 6.0.10.0
DRIVE OS 6.0.8.1
DRIVE OS 6.0.6
DRIVE OS 6.0.5
DRIVE OS 6.0.4 (rev. 1)
DRIVE OS 6.0.4 SDK
other

Target Operating System
Linux
QNX
other

Hardware Platform
DRIVE AGX Orin Developer Kit (940-63710-0010-300)
DRIVE AGX Orin Developer Kit (940-63710-0010-200)
DRIVE AGX Orin Developer Kit (940-63710-0010-100)
DRIVE AGX Orin Developer Kit (940-63710-0010-D00)
DRIVE AGX Orin Developer Kit (940-63710-0010-C00)
DRIVE AGX Orin Developer Kit (not sure its number)
other

SDK Manager Version
2.1.0
other

Host Machine Version
native Ubuntu Linux 20.04 Host installed with SDK Manager
native Ubuntu Linux 20.04 Host installed with DRIVE OS Docker Containers
native Ubuntu Linux 18.04 Host installed with DRIVE OS Docker Containers
other

Issue Description
I have two DRIVE AGX Orin developer kits. I connect them together with a couple of feet long CAT6 550MHz cable from RJ-45/10GBASE-T of one developer kit to RJ-45/10GBASE-T of another developer kit.
Host computer is connected to both developer kits to their micro-USB debug ports, and I am connected from host to both developer kits via minicom.
I have set IP addresses for both developer kits’ mgbe1_0 ports and can ping between the developer kits.
On one developer kits I set “iperf -s” to act as listening “server”.
One another developer kits I set “iperf -c [IP_ADDRESS_OF ABOVE_DEVKIT]”.

By running multiple tests, I get the bandwidth result of between 6.07…6.17Gps, which is well below the expected (closer to) 10Gbps rate.
I have also tried with other similar ethernet cables resulting to the same results.

Error String
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Logs
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2

Dear @sheinisuo ,
Are you using DRIVE AGX Orin devkit or any other platform? Could you share DRIVE OS release details?

3

Yes, this is with DRIVE AGX Orin devkit.
Right out the box, booted to Ubuntu 20.04.4 LTS.
Should this already have a version of DRIVE OS pre-installed? If so, how to check the version?

4

Does increasing MTU value of interface helps to increasing BW?

6

Any update on previous suggestion?

8

Please share the version details using cat /etc/nvidia/version-ubuntu-rootfs.txt.

9

Dear @sheinisuo ,
Could you confirm if increasing MTU helped to increase speed?

There is no update from you for a period, assuming this is not an issue anymore.
Hence, we are closing this topic. If need further support, please open a new one.
Thanks

10

Dear @sheinisuo ,
Could you please provide any update for this issue?

11

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