Need help with Trunk between 2 different switch

Hi expert,

I got an fiber link between 2 offices configured in Trunk mode. On one site I got an Dell 5548 and on the other side a Cisco 2960X. Each port are configure in trunk on these vlan: 5,10,40,50,80,90,111. But the vlan 111 do not route by the link. I cant ping item on vlan 111 between the 2 network. But for the other vlan all work good.

How I can diagnose that? I try to check some log or date on the Dell CLI for the port facing the fiber link, but I am not verry familiar with these switch.

Any idea?