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This isn't necessarily any issue, I'm just trying to figure out a couple of things about the following log entry.

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Sep 30 15:04:24 STP: MSTI0: New root on port 1, root path cost is 20000


1) Why is MST enabled when the switch is running RSTP?

2) Why is MST selecting root port 1 when there is nothing patched into it?

3) Is this an issue?


See below screenshot and snippet from my Syslog.

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Sep 30 14:53:45 UI: Syslog_Log_Logins: changed from 'Disabled' to 'Enabled'
Sep 30 14:53:48 dropbear[1421]: Premature exit: Terminated by signal
Sep 30 14:53:48 dropbear[547]: Running in background
Sep 30 15:04:12 UI: Configuration changed by admin (10.0.0.77)
Sep 30 15:04:12 UI: Port 11 Name: changed from 'Media Converter' to 'Artist Relations DL'
Sep 30 15:04:22 monitor: restarting vtss_appl
Sep 30 15:04:23 STP: set port 11 to discarding
Sep 30 15:04:23 STP: set port 12 to discarding
Sep 30 15:04:24 STP: set port 11 to learning
Sep 30 15:04:24 STP: set port 11 to forwarding
Sep 30 15:04:24 STP: MSTI0: New root on port 1, root path cost is 20000
Sep 30 15:04:24 STP: set port 12 to learning
Sep 30 15:04:24 STP: set port 12 to forwarding


I'd need to see your STP tab.

Thanks for the response. What is the reason for choosing port 1 as root when there's nothing patched into it?

I tried to duplicate this in my lab but couldn't. Just some kind of fluke I think. Obviously root didn't stay on port 1 as your screenshot shows root on port 12. If you notice it happen again I can look into it more, but I don't think its anything to worry about.

Thanks for the reply. I've seen this log on multiple switches with nothing plugged into Port 1. It doesn't seem to be causing an issue, but I was curious and wanted to see what y'all though. Here's a screen shot from another switch.