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m4300 top of rack HA
I am setting up a HA top of rack with 2 m4300 series switches. The first m4300 was already in production and now i am slowly adding in the second for redundancy. I have the first switch with priority...
Hi quick6,
Once you have your stack configured, the stack works as one unique unit. So, the master takes over the role of all management tasks.
The best way would be to configure a LAG at the far-end (devices that you connect to the M4300 stack), and then configure a LAG on the M4300 stack.
Once you have the LAG configured, you can then connect both cables (Fibre/copper), and, in case one goes down, the other link will remain up, and the secondary unit will take over as Master.
Ideally you also want your firewall to be configured with a LAG, so that in case one goes down, there is still the uplink out to the internet. đ.
If devices do not support LAGs, you can utilize STP, and have it block off a redundant port, but ideally, you should utilize LAGs where possible.
Mike
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