The switch cannot connect to the core
The first thing you need to make sure is that the links on both sides, between the client and the server, are configured as trunks and that their trunking types match. A device can be pinged from core switch ( router) but not the switch it's plugged into. I'm just an apprentice and I don't know what I've done wrong! We have a pair of Dell N3224P-ON switches and today's morning my colleague gave me a task and instructions to. I have an issue in another city watch is I can't ping to the switch it said "time out" BUT I can ping the core and after I ping the core I can ping the switch!! It's weird Hoi there, this is not a very helpful problem description.
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