cisco nexus 9000 %STP-2-DISPUTE_DETECTED:

shlomoi
Getting noticed

cisco nexus 9000 %STP-2-DISPUTE_DETECTED:

Hi ,

We recently connected a Maraki 9300L switch against our Nexus 9000.

A trunk al vlans is connected between them.
Nothing is connected to Maraki yet except the Nexus and we get error messages on the Nexus.


Does anyone have an idea what the problem is

 

error messages on nexus :

 %STP-2-DISPUTE_DETECTED: Dispute detected on port Ethernet1/10 on VLAN0012.
 %STP-2-DISPUTE_DETECTED: Dispute detected on port Ethernet1/11 on VLAN0013.
 %STP-2-DISPUTE_DETECTED: Dispute detected on port Ethernet1/23 on VLAN0014.

 

show spanning tree on nexus

 

n9k# show spanning-tree summary
Switch is in rapid-pvst mode
Root bridge for: VLAN0012, VLAN0013, VLAN0014,
L2 Gateway STP is disabled
Port Type Default is disable
Edge Port [PortFast] BPDU Guard Default is disabled
Edge Port [PortFast] BPDU Filter Default is disabled
Bridge Assurance is enabled
Loopguard Default is disabled
Pathcost method used is short
STP-Lite is disabled

 

spanning tree on meraki 9300L switch :

 

shlomoi_0-1738692706531.png

 

 

 

thanks

2 Replies 2
alemabrahao
Kind of a big deal

What is the spanning-tree priority configured on Nexus? Have you tried setting it for zero?

I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.

Please, if this post was useful, leave your kudos and mark it as solved.
alemabrahao
Kind of a big deal

What about the native VLAN on the Nexus interfaces that are displaying the message, have you configured it?

I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.

Please, if this post was useful, leave your kudos and mark it as solved.
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