In the process of updating the software on our 2960x's to Cisco's recommended release 15.2.4E8(MD). After the reload I've had 3 switches lose their lanbase license out of around 25. Once this happens it stops forwarding traffic, the management side works fine. Has anyone seen this behavior before? If so are there any indicators that would identify a switch that would be susceptible prior to an upgrade? I checked the licenses after the first two before going any further, yet had another fail last night even though it showed to have its license prior to the reload. TAC case is open with Cisco.
From the logs: %ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's authorization. This product may contain software that was copied in violation of Cisco's license terms. If your use of this product is the cause of a support issue, Cisco may deny operation of the product, support under your warranty or under a Cisco technical support program such as Smartnet. Please contact Cisco's Technical Assistance Center for more information.
On the failed switch show license Index 1 Feature: lanlite Period left: 0 minute 0 second Index 2 Feature: lanbase Period left: 0 minute 0 second
What it should show show license Index 1 Feature: lanlite Period left: 0 minute 0 second Index 2 Feature: lanbase Period left: Life time License Type: Permanent License State: Active, In Use License Priority: Medium License Count: Non-Counted
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