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October 17th, 2017 09:00

Dell N4032F Po1 Learning to forwarding

Hi,

I got 2 switch N4032F stacked and my Po1 have some problem.

each seconde i got in log this :
Po1 is transitioned from the Learning state to the Forwarding state in instance 0
Po1 is transitioned from the Forwarding state to the Blocking state in instance 0

I got many Po1 with the same equipement connect in the same switch, with the same configuration. Why it happen just on this Po ?! Other equipement is a Mikrotik CCR1072.

Thank you

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October 17th, 2017 13:00

Page 770 http://downloads.dell.com/manuals/common/networking_nxxcli_en-us.pdf you could try to increase the hello time of spanning tree to see if it will stop switching. 

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October 17th, 2017 10:00

Hi,

It is spanning tree switching, did any of the ports go down when this switched? 

7 Posts

October 17th, 2017 11:00

Hi Josh, 

Thank for your response. No, there have no port go down, or flapping on this switch.

Thank you

7 Posts

October 26th, 2017 07:00

Thank for your response. We have check the RSTP on Mikrotik side and the last bridge I have create, i forget to desactivate the RSTP. It solve !

Thank you

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