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An engineer receives a report that an application exhibits poor performance. On the switch where the server is connected, this syslog message is visible: SW_MATM4-MACFLAP_N0HF: Host 0054.3831.8253 in vlan 14 is flapping between port GUAM and port Gi1/0/2. What is causing the problem?
Correct Answer: B
The syslog message indicates that the MAC address of host 0054.3831.8253 is flapping between two different ports on the switch, which is a common symptom of an undesirable load-balancing configuration on the switch. This can occur when multiple physical links are not correctly aggregated, leading to frames from a single source being forwarded over multiple paths, resulting in out-of-order delivery and poor application performance. References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) - Chapter on Troubleshooting Layer 2 and Layer 3 Connectivity Issues