M4300 Portspeed SFP+

We have two M4300-24x24f in a stack.

then there are three M4300-28G connectec with LAG to the 24x24f stack.

We are using AXM764 SFP+ Moduls for all of this connection.

Now I see in the web interface: switching --> ports --> speed --> 1000 for two connections from the first 24x24f

The speed from the second 24x24f to all client 28G are in 10G mode.

First 24x24f

CLI

Second 24x24f

CLI

Client 1 28G

Client 2 28G

Client 3 28G

What is the problem?