WS-C2960X-24PS-L connection to Cisco SG350-10P-K9

[KramerB]

How can I connect my main switch 2960X (connected to Windows server and router for dhcp) to the second switch Cisco SG350 to expend my network? I tried it with a straight and a cross over ethernet network cat 6 cabel. The leds flashes just 3 seconds and than my port on the 2960X is marked red in my configuration web interface.

Any idea? Do I have to change something in the setting of the port or in the switch?

Thanks

[balaji.bandi]

You need to configure Trunk configuration between 2960 and SG350.

Or post the configuration of both and tell us what port you are connection each other.

[KramerB · Accepted solution]

Solved by myself just setting the ports to access on both switches and disable spanning tree on the sg350. That’s all and it works;)