I need help understanding what a layer 3 switch is and how to tell if I am working on one.
I have some Catalyst 6500 series switches that I believe are layer 2 only. They run CATOS. On these switches the command "show ip interfaces brief" will not run.
I have some CAt 6500 that run in Hybrid mode. The switch side runs CATOS and if I "session 15" to the MSFC running IOS and run "show ip interfaces brief" I don't see any physical interfaces just the vlans.
I have other CAT 6500 switches that run native IOS and if I run "show ip interfaces brief" then I see the vlan interfaces and the physical interfaces.
Is the Hybrid switch a layer 2 or layer 3 switch?
Does the hardware or IOS/CATOS determine if it is a layer 2 or layer 3 switch?
Can you change a Layer 2 to a Layer 3 by upgrading the IOS code?