I am having an issue where we are retiring some 2960x switches with some 9200 series switches. The 9200's are in a stack and connected back with fiber back to the core(9300 series). When i do a( sh cdp nei) on the 9200 i can see the 9300 but when i do the same command on the 9300 i cannot see the 9200.from what i can tell everything is configured correctly but the new stack will not communicate with the core. I don't know what i am missing here.
