I have 4 x cisco 3750g-12s in the following config attached diagram.
Im running rpvst on all the switches and something seems to be incorrect with the config.
As topology is in a loop providing redundancy from what i understand one port should be in a blocking state.
I have checked all the switches and none show blocking for a port. I am trying to ping from 3 switch to switch 2 however its taking the long way round to arrive and the switch. If I pull the port down on switch 3 connected to switch 4. I lose connectivity completly and have to have the switch rebooted.
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