- The first message is based on the interrupt type received:
Excessive Interrupts Received for I2C interface for unit X
- A second message may be reported as excessive interrupts are generated by the I2C:
Switching to software polling
- The switch will mask off the I2C interrupt permanently.
- The switch go to a polled or periodic sampling mode of interrupt handing to reduce CPU utilization.
- Although the message states software polling it is in reality called soft forwarding.