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Cisco Bug: CSCun73516 - Recovery of USB unmount during activation : reset host-controller

Last Modified

Jun 10, 2019

Products (1)

  • Cisco ONS 15454 Series Multiservice Provisioning Platforms

Known Affected Releases


Description (partial)

The USB mount was attempted only once. Upon failure, it used to stay in that state and a permanent USB-WRITE-FAIL alarm was raised

USB Mount failure can happen during the following scenarios.
-> Booting the TNC-E without LCD being plugged out and ECU being plugged in 
-> TNC Side switch 
-> USB copy task getting interrupted during bulk data transfer via DMA.
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