you have to ensure that 1/3/3 on the 7150-24 and 1/3/1 on the C12P are defined as stacking ports in their respective configs, and *not* part of a stack trunk. can you post the output of show run, the top bit with all the stuff under "stack unit 1"? on top of that make sure the ports are manually set to 1gbps:
enable
conf t
int e 1/3/3
speed-duplex 1000-full
##C12P:
enable
conf t
int e 1/3/1
speed-duplex 1000-full
you should see a valid link up before even running any stacking commands, ensure that's happening by looking at "show int e 1/3/3" for example
Finally, the weekend, so I'm free to break the internet.
On the C12:
Current configuration:
!
ver 08.0.95dT213
!
stack unit 1
module 1 icx7150-c12-poe-port-management-module
module 2 icx7150-2-copper-port-2g-module
module 3 icx7150-2-sfp-plus-port-20g-module
!
!
On the 24:
!
ver 08.0.95dT213
!
stack unit 1
module 1 icx7150-24-port-management-module
module 2 icx7150-2-copper-port-2g-module
module 3 icx7150-4-sfp-plus-port-40g-module
priority 250
stack-port 1/3/1
stack-port 1/3/3
stack unit 2
unit-name cadbury
module 1 icx7150-c12-poe-port-management-module
module 2 icx7150-2-copper-port-2g-module
module 3 icx7150-2-sfp-plus-port-20g-module
stack-port 2/3/1
Tried setting the port speed on the C12. When I do, I see:
"Error! 1/3/2 speed is 1G. A stack-port needs at least 10G speed."
So I guess that answers that. I don't suppose we can lie to it/ force override? It makes sense, but it IS annoying for those of us limping it along at home.
I may pick up the 10G copper SFPs and try moving the C12 over to the solitary CAT5 run, on the argument that a) it may be good enough to make a 10G link and b) if not, it's actually feasible for me to pull ethernet to that one place. Relegate the C08 to MOCA duty since I can't stack it anyway...
