X440-G2-48p Stacking 10Gbe links, license error on slot2

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  • Updated 8 months ago
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Ok so I might have shot myself in the foot here but figured I post to ask... 
I have a stack of three X440-G2-48p switches, and prior to stacking I foolishly installed the 10GBe license on Slot 1 and Slot 3 as we were going to use 10Gbe uplinks (now that is not the case and will use 1Gbe). Now that I have the stack created and using Ports 49/50 for stacking I get an error that 2:49 and 2:50 are not licensed. 

Can I remove the license from slot 1 and slot 3? Or can I tell the system that those are for stacking?
Should I just backup my config, wipe the nodes and start over (sans the license install)?

Here is an output from show stacking-support and show stacking

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

Stack Topology is a Ring
Active Topology is a Ring
Node MAC Address    Slot  Stack State  Role     Flags
------------------  ----  -----------  -------  ---
**********************  1     Active       Master   CA-
**********************  2     Active       Backup   CA-
**********************  3     Active       Standby  CA-
* - Indicates this node
Flags:  (C) Candidate for this active topology, (A) Active Node
        (O) node may be in Other active topology
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Robert LeClerc

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Posted 8 months ago

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Kenneth Potter

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Hi Robert, 

Since slot two is the "backup" it needs to have the same license as the master. Backups are the next Master in the event of a Master fail.

Removing the license should clear the error;
Command:     Clear License      * you may need to hit tab to complete the full syntax *

follow this link for stack license mismatch error.


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Drew C., Community Manager

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The 10G licenses won't (shouldn't) cause a license mismatch error like other licenses do.
Also keep in mind that our licensing system won't allow you to swap the 10G license from one serial number to another. If you want slot 2 to have the 10G licenses, you'll need to change your configuration - either in software or physically - so that slot 2 becomes slot 3 and slot 3 becomes slot 2.