Troubleshooting a Switch Replacement: Failure to Boot
Question
A technician attempts to replace a switch with a new one of similar model from the same vendor.
When the technician moves the fiber and SFP plug, the switch does not completely boot up.
Considering that the config files are the same, which of the following is the MOST likely cause of the failure?
A.
Damaged fiber B.
Corrupted operating system C.
VLAN mismatch D.
Bad port.
B.
Explanations
A technician attempts to replace a switch with a new one of similar model from the same vendor.
When the technician moves the fiber and SFP plug, the switch does not completely boot up.
Considering that the config files are the same, which of the following is the MOST likely cause of the failure?
A.
Damaged fiber
B.
Corrupted operating system
C.
VLAN mismatch
D.
Bad port.
B.
When a technician replaces a switch with a new one of similar model from the same vendor and moves the fiber and SFP plug, the switch should boot up properly if the config files are the same. If it does not boot up, there could be several reasons for this issue.
Option A: Damaged fiber If the fiber is damaged, the switch will not be able to establish a connection and will not boot up. However, the SFP plug can be moved to another port to check if the issue is with the fiber or not.
Option B: Corrupted operating system If the operating system is corrupted, the switch may not boot up or may not function properly. This could be due to several reasons such as a hardware failure, power outage, or firmware corruption.
Option C: VLAN mismatch If the VLAN configuration on the new switch is different from the old switch, the switch may not boot up. VLANs are used to segment networks, and if the configuration does not match, the switch may not be able to communicate with other devices on the network.
Option D: Bad port If the SFP port on the new switch is faulty or damaged, the switch may not boot up. The technician can test this by moving the SFP plug to another port on the switch.
Out of these options, the most likely cause of the failure is a bad port (Option D). If the switch does not completely boot up after moving the fiber and SFP plug, it could be due to a faulty or damaged port. The technician can verify this by moving the SFP plug to another port on the switch and checking if the switch boots up properly. If the switch boots up with the SFP plug in a different port, the original port is likely to be faulty, and the switch needs to be replaced or repaired.
