A network technician is investigating a desktop computer experiencing severe network throughput degradation and high late-collision rates when communicating with local servers. In what order should the technician perform the following steps to troubleshoot and resolve this wired network issue using a bottom-up approach?
- 1Check the physical link light status on the computer's network interface card (NIC) and wall jack.
- 2Run ipconfig /all to verify the local IPv4 address configuration and identify the default gateway.
- 3Execute a continuous ping to the default gateway to measure packet loss and latency on the local link.
- 4Examine the NIC properties and switch port configuration to check for speed and duplex settings.
- 5Reconfigure both the switch port and NIC to auto-negotiation and clear collision counter logs.
Cevap
The correct sequence begins with checking physical link lights on the NIC and wall jack, followed by running ipconfig /all to verify local IP settings, pinging the default gateway to isolate throughput issues to the local segment, inspecting the NIC and switch port properties for a duplex mismatch, and finally setting both ends to auto-negotiation and clearing collision counters.
Under standard bottom-up troubleshooting methodology, physical connectivity (link lights) must be confirmed first. Next, inspecting local IP configuration via ipconfig ensures basic protocol stack integrity. Testing reachability to the default gateway with ping isolates performance issues locally. Checking speed and duplex settings identifies the root cause of collisions, and aligning both sides to auto-negotiation completes the resolution.
Adım Adım Çözüm
Anahtar Kavram
Standard CompTIA bottom-up troubleshooting methodology applied to wired Ethernet speed/duplex mismatch identification.