Network Interface Health Use this skill when a network symptom might be caused by a physical link, switch port, cable, transceiver, duplex setting, or congested interface. When to Use - A host or VLAN has packet loss, latency spikes, or intermittent reachability. - A switch or router interface shows CRCs, runts, giants, drops, resets, or flaps. - You need to compare both ends of a link before replacing hardware. - A change window needs before/after interface counter evidence. - Monitoring reports rising , , or . How It Works Interface counters are evidence, but the trend matters more than the…