After reviewing UDLD status on switch ports, an engineer notices that the switch LEDs are green. Which statement describes what this indicates about the status of the port?
A.
The port is fully operational and no known issues are detected.
B.
The bidirectional status of "unknown" indicates that the port will go into the disabled state because it stopped receiving UDLD packets from its neighbor.
C.
UDLD moved into aggressive mode after inconsistent acknowledgements were detected.
D.
The UDLD port is placed in the "unknown" state for 5 seconds until the next UDLD packet is received on the interface.
Suggested Answer:A🗳️
By default, UDLD is disabled on all interfaces. We can enable UDLD globally on the device, or individually on specific interfaces with the command udld port. This enables UDLD in normal mode. It would be prohibitively difficult to coordinate the configuration of UDLD on both ends of a link at the same time, so when UDLD is first enabled and does not detect a neighbor the link state is considered unknown, which is not necessarily an error condition. The port will remain operational during this time. When UDLD is finally enabled on the other end, the status will transition to bidirectional. References: http://packetlife.net/blog/2011/mar/7/udld/
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