I am trying to figure out if I can have two of the 2920 switches' on a 10G SFP trk1 and one on a 1G standard port trk1.
The goal is to put the 3 different LAB's on a second VLAN (LAB1) but have them still be able to talk together.
My main 2920 switch has 4 of the 10G SFP going to different switches' by fiber with the same SFP's one each end.
But one of my switch's is just on a CAT 6 line due to I have no more SFP 10 Ports but it has the Trunk set up trk1 on port 17 on one switch and port 26 on the second.
I set up a Trunk trk1 to pass the VLAN's data across on all of the switches and the data seams to work on all of the switches except the one on the CAT6 line; it is not passing the non default VLAN (LAB1) that is running at 1G.
So what I am trying to figure out is do all of the trk1 have to be at the same speed to pass the data, or does it matter? I am running out of ideas on why the data is not passing.