I was wondering if anyone has any info or experience on why the following is happening in our Data Center ServerFarm Access switch.
Switch is WS-C2948G-GE-TX running CAT OS 8.4(11)GLX. It is configured with Rapid-PVST+ spanning-tree in mixed environment with PVST+ spanning-tree within the server farm.
Ports directly connect servers are trunked ports with portfast enable.
When the port goes up/down spanning tree goes into listening and learning modes even though portfast is configured on the ports.
Does anyone know what could cause this?
Thanks in advance for your help.