We have two 2960X 48 port gb switches daisy chained to each other, and one has an uplink to a core switch.
connected to the switches are static PLCs, IOs and other manufacturing controllers. Everything works fine even if we loose the uplink because the devices just talk amongst themselves, we just loose monitoring capabilities. Problem happens when uplink comes back online. Both switches ports go blinking orange and drip all connections for about 10 seconds. Causing tonnes of errors on our systems. It starts working again but the damage is done. Switches are setup as factory default. Why does this happen? Thx
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