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How does one access the Cisco Nexus 5000 terminal? There is a console port on the back and connecting directly to it does nothing; does it require a supervisor module or something?

Edit for clarity:

To be clear, I am using a Cisco certified DB-9 rollover cable, so the pinouts are correct (I have verified them).

My question is more along the lines of, "Does the Nexus 5596UP require something special to connect to the console port, such as a supervisor module or a magic wand?"

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  • The console port is a serial port that requires a Cisco proprietary cable, a serial port on your host, and a terminal application configured to the same speed, parity, etc. that the console port is configured. – Ron Maupin♦ Apr 4 '20 at 2:41
  • cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/hw/… – Ricky Apr 4 '20 at 2:53
  • Thanks for answering guys, but I am aware of how db-9 rollover cable works. Perhaps I should have been more specific; when I connect i connect a Cisco Certified rollover cable to my db-9 serial port on my PC, and then attempt to connect using the required 9600 8-n-1 settings, nothing happens. It is a blank screen. My questions was more along the lines of, "can the console port be disabled?" – Shōgun8 Apr 6 '20 at 18:49
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    You need to match the specific configuration of the serial interface, which may have been changed from the default. You may need to try different speed and other parameters. – Ron Maupin♦ Apr 6 '20 at 18:56
  • That's actually a good idea Ron, but I have already cycled through them all. Is there any other way that the port may have been disabled? – Shōgun8 Apr 6 '20 at 19:01
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I think I may be a victim of this bug: Nexus 5596: System fails to boot after a power cycle

New question: the bug notice indicates that there is a script that can be uploaded to the switch that will remediate the problem, but how can I upload the script if I can't get console access?

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You need a serial cable and eventually a USB adapter. then after connecting the serial port on the back of your Cisco device and the USB to your pc, you will need to use a terminal program like putty and from it run a new serial connection.

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  • USB is not a requirement. The requirement is a serial connection on your PC. Unfortunately, many laptops do not have a serial connections the way they used to, so you can use a USB to serial adapter, but, for example, I have a PC with a serial connection that I use to connect to my router, and it does not involve a USB connection. – Ron Maupin♦ Apr 4 '20 at 13:58
  • Did you see the part about a "supervisor module"? – Shōgun8 Apr 6 '20 at 18:54
  • he is asking about connecting to a console port... what does it have to do with supervisor module? – Tony Fejzulla Apr 7 '20 at 19:25

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