Upgrading Cisco Switch Firmware Slow

I recently upgraded a Cisco 3560X switch. I upgraded from 12.2(53)SE2 to 15.0(2)SE8. I thought this would take 5 minutes max. After ten minutes I was worried. I connected a console cable and found the console reporting “Front-end Microcode IMG MGR: Programming device 0…rrrrrrwsssssssssssssssssssssspssssssssssssssssssssspsssssssss”

After googling I have discovered it is quite normal to take up to 40 minutes due to an upgrade to the MCU (Micro Processing Unit). This happens when updating to a higher version with newer microcode.

PHEW! It was a heart stopping 40 minutes.

 

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One Reply to “Upgrading Cisco Switch Firmware Slow”

  1. It’s actually a great and useful piece of info. I’m glad that you just shared this useful
    info with us. Please stay us up to date like this. Thank you for sharing.

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