Had a network loop today, first one in a long time. A vendor created the loop on an unmanaged switch that plugs into one of my HPE 2920 edge switches. Spanning tree was enabled and killed the vendor port and the uplink port to the core. It was a VLAN that is on all of my 15 switches.
Is it normal behavior for STP to kill the uplink port as well, making the switch an island? I thought it only killed the offending port, the vendor.
Just wondering if this is normal or if I have something configured incorrectly. My network is HP/Aruba.
Thanx
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