02-04-2020 11:57 PM
I got 3 x440-g2’s and intended to use the stack ports with 10 Gbe SR SFP+ modules. I popped them in and all three switches linked up. But as soon as I started trying to find the stacking guide I started banging my head against a wall.
When I enable stack-support it shows that it’s only enabling the alternate ports (49 & 50)..
When I show stack-support it indicates the native ports are unavail. If i try to manually configure, it refuses to accept native as an option.
Tried doing it with the SFP’s in and out, daisy chained, ringed. Could the SFP+ modules work but still not be satisfactory for extreme stacking ? Gtek transceiver & LC to LC Patch
02-05-2020 03:30 PM
They are all in stacking support (configured and active setting), but when you show stacking on each one, they only see themselves. 1 node.
I’ve ran the easy set-up and reverted back with factory resets / unconfigure stacking-support a few times now without success. I’m just irked that the configuration won’t let me enable them, has them shut off by default only for stacking interface. I can plug into switch #3 and everything works, can manage them all by telnet. Ports active and SFP recognized in the gui monitor.
Slot-1 Stack.3 # show stacking-support
Stack Available Ports
Port Native Alternate Configured Current
----- ----------------- ---------- ----------
1 No 49 * Alternate Alternate
2 No 50 * Alternate Alternate
stacking-support: Enabled Enabled
Flags: * - Current stack port selection
02-05-2020 01:42 AM
So you have to enable stacking-support
Maybe configure stacking-support
Reboot each switch so that takes affect.
Cable it all together, preferably in a ring connecting switch 1 port 52 to switch 2 port 51 switch 2 port 52 to switch 3 port 51 and 3:52 to 1:51.
Show stacking should now show all switches though they will be disabled or something.
Configure stacking easy set-up??
I have always used direct attach cables, so your optics could be the issue… I don't expect to be in the office till Friday but can test then if you don't get it going.
02-05-2020 01:19 AM
There are 4, but my 10 Gb modules don’t ever link up in those ports.
02-05-2020 01:09 AM
I am at home sitting on my couch and don't have any 440-G2s here.
But I swear there are 4 SFP ports on the back.
I agree you don't need the 10G license to stack.
I know I just used port 51,52 for uplinks which means I used the other two SFP ports on the back for stacking.
Sorry my memory is not better.