Exam N10-009 topic 1 question 204 discussion

When there's a connection problem between two switches, enabling "lldp run" (which stands for "Link Layer Discovery Protocol run") helps identify the issue by allowing the switches to exchange information about their connected neighbors, revealing whether the link is truly down or if there's a configuration problem on either switch, thus aiding in troubleshooting network connectivity issues between them. Key points about LLDP in this scenario: Neighbor discovery: LLDP essentially acts as a "hello" message between devices, letting each switch know which devices are directly connected to it on a specific port. Identifying link status: By checking the LLDP information received from a neighboring switch, you can quickly determine if the link is up or down. Troubleshooting potential issues: If a switch isn't receiving LLDP packets from its neighbor, it could indicate a cable problem, port configuration issues, or a faulty switch.