Have two of these switches already linked using a GBIC fiber module.
I am trying to add a second GBIC filber module link using a different VLAN.
The second link (added today) shows the G ports as 'down' despite the modules having been inserted and connected correctly.
So I am now wondering what the difference is between ComboF and ComboC and why the ports appear dead.
ComboF is working.
ComboC shows as down.
I read that ComboF is single or multimode fiber linking to Copper Port and ComboC is single or multimode fiber linked to Fiber Port - but I confess I don't really understand the difference or why the ports refuse to come up.