Hi @kubajzs197 

Thanks for posting in our business forum.

Two modules? Hardware version?

Manually set a link speed to the port as 10Gbps if that's how you configure your switch.

Hi @kubajzs197 

Thanks for posting in our business forum.

kubajzs197 wrote

  @kubajzs197 

 

Switch both 

SG3428XMP v3.20

3.20.3

 

Modules are versions 1.2 - same type on both sides. Switch configured 10Gb/s on SFP+ ports. Somewhere is the problem i try uplink with the metalic cable thru RJ45 ports and it is much better then with the SM5310-T in SFP+ ports.

 

I try also diffrent switch with SFP+ ports but same result.... slow speed, cannot log into OC200.

 

Thanks

40-meter cable, did you use the same wire to test on the OC200?

Did you test with a 1-meter to rule out the hardware issues?

Hi @kubajzs197 

Thanks for posting in our business forum.

kubajzs197 wrote

  @Clive_A 

Hi, between the rack position I have 3 cables FTP CAT 6A. I tried all and same result. But now I have this configuration: In main RACK1 I use the SM5310-T in SFP+ port. In second RACK2 I don´t. In second RACK2 is uplink in RJ45 and everything works fine. So I think the problem is in communication between two module SM5310-T or configuration?

 

 

Working solution on R1 switch SFP+ module and uplink to R2 RJ45

 

 

Solution with SFP+ on both sides, but working only limited time. But R2_POE_SWITCH detect 10Gbps FDX

Strange enough. If you set them separately 24 and 26?

10Gbps is hot and it can get overheated which affects the speed.

Do you have a firmware update recently on two switches?

Hi @kubajzs197 

Thanks for posting in our business forum.

kubajzs197 wrote

  @Clive_A 

Yes both switches have same firmware. 

 

And Yes on both red arrows are SM5310-T. I understand 10Gbps is heating, but now there are not apllication or traffic for 10Gbps I just testing network. Now we use only internet connection. In room where is the RACK1 is 15° celsius in room wher is the RACK2 is 20° celsius.

 

Where can i find temperature of SM5310-T? I found only temperature of switch and CPU data etc.

 

Thanks

CLI mode and output the SFP.

See the User Guide of the CLI and it applies to the switch under the controller.

This problem only occurs with the Internet speed? Speedtest.net?

If you iperf from the two mentioned switches, will they get full gigabit?

Make another test, move the PC on R1 to the router, LAN, result? Please provide screenshots.

Hi @kubajzs197 

Thanks for posting in our business forum.

kubajzs197 wrote

  @Clive_A 

If I connect PC to R1 SWITCH everything works fine (internet access (200Mbps, OC200, etc.) but if I connect PC to R2 Switch and try speedtest.net (speed is 0,7Mbps) or connect to OC200 (local) speed is slow and get answer request timeout.

Iperf tests locally. I want to learn if you can get a local speed up to Gigabit to verify if there is a link issue.

Everything so far looks proper.

What's the firmware version of both switches? Seem that 3.30.2 has been pulled off from the server. Did you upgrade to this version recently? Try to revert to its previous firmware and see if there is an improvement.

Anything wrong with in the log?