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[Reza Sharifi]

Hi,

What type of switches are you using? Can you provide the output of "sh run" and "sh etherchannel summary"?

Also, what type of firewall are you using, and are they in active/standby mode?

HTH

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[balaji.bandi]

Is your Router also connected to both the switches ? do you have any high level diagram and configuration to understand.

[Reza Sharifi]

Hi Sinan,

Thanks for the diagram. Very helpful. Now that I see your FWs are FortiGate, I am not sure if this design will work as expected. Can you try and connect each switch to only one FW and test? For example:

switch-1 port 1/0/47 to FortiGate-1 port 1

switch-2 port 2/0/47 to FortiGate-2 port 1

All in Po1

Thanks,

Reza

[balaji.bandi]

I have done some Migration of foritgate simlar setup, recently done 510E - all connected exact same way with Stack. (since i dont know how your fortigate config, so we do not have visibility of falover setup done in your vDOM).

( i have not done any Flex Stack) - i belive this will be unlike any other stack technique here.

For testing, remove one of the link going to other stack from Fortigate and fail over and test it, so we can suggest better.

Also as per the diagram i would like to know how is the configure arrangement on the Top Switch (north side)

 

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[paul driver]

Hello

Have you tried using two PC'c instead of just the one,
gig1/0/47, gig2/0/47 = Pc 1 FORIGATE port 1
gig1/0/48, gig2/0/48 = Pc 2 FORIGATE port 2

Also 2960x
show switch
show switch stack-ring speed
show switch stack-ports

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