Meraki MS STP Events - Root bridge election

SOLVED
RaphaelL
Kind of a big deal

Meraki MS STP Events - Root bridge election

Hi ,

 

In the past few days I have extracted via API all the events '' stp_no_longer_root " and "stp_elected_root" to see if any Meraki switches were becoming the Root bridge.

 

Here is our config : 

RaphaelL_0-1639068079415.png

 

Switch 1-8 are stacked with stack cables and only switch 1 and 2 are connected to our distribution layer ( Cisco VSS C6800 series ).  Meraki switches uses the default priority of 32678. Our distribution layer is running 4096 priority.

 

The ''only'' way I could explain all the STP events would be a sudden power loss and some members are rebooting faster than the switch master ( the one connecting to the root bridge ). Without any way to receive the root bridge bpdus , the stack member elects itself as the root bridge for a moment...

 

I'm having a hard time to figure out if a meraki switch really rebooted or even finding out the uptime...

 

Am I misinterpreting the logs ?

 

Thanks ,

1 ACCEPTED SOLUTION
Ryan_Miles
Meraki Employee

All 8 in the stack did reboot on the 6th. Not sure what the cause was. If you open a Support case they may be able to determine root cause.

 

Also, you should update to the current stable firmware. You're running a beta from over a year ago.

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3 REPLIES 3
Ryan_Miles
Meraki Employee

All 8 in the stack did reboot on the 6th. Not sure what the cause was. If you open a Support case they may be able to determine root cause.

 

Also, you should update to the current stable firmware. You're running a beta from over a year ago.

RaphaelL
Kind of a big deal

Thanks for the quick reply ! 

 

1- We can't upgrade the firmware yet. Long story with a current bug regarding DHCP

2- Is there a easy way to determine the uptime of a switch ?

3- A Support case was already open , but we couldn't determine if the switch did reboot or not.

 

I think we had a power outage on that site, but I couldn't confirm it.

1 - Understood 😉

2 - Unfortunately uptime is not exposed in dashboard. Please keep submitting feedback that it should be visible!

3 - Support can see the uptime/reboots. So, I'm not sure why/what transpired in the case.

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