I currently have a setup with a HP core switch with few VLANs configured on it e.g. vlan 10, 20, 30, 40.
However when I uplink my DELL N1548 to the HP core switch, I cannot connect anything behind the DELL switch, do I need to configure vlan on the DELL switch? I have tried configured those vlans on the Dell switch and configured the switchport as general or trunk mode, both configuration not working as expected.
The one who configured the core switch has left, and there was no documentation left behind. I am trying my best to learn and configured so that it works, however after few days of trying, I am out of clue.