What is the status of port-channel if LACP is misconfigured?
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A. B. C. D.D
Port-channel is a feature in Cisco switches that allows multiple physical interfaces to be bundled together to create a single logical interface, also known as a port-channel interface. This logical interface increases the bandwidth and redundancy of the network.
Link Aggregation Control Protocol (LACP) is a standard protocol used for dynamic creation of port-channel interfaces. LACP allows the switch to negotiate the configuration parameters with the connected device and dynamically create a port-channel interface. If LACP is misconfigured, it can lead to several issues in the network.
The status of the port-channel interface depends on how LACP is misconfigured. The possible outcomes are:
A. Forwarding: If LACP is misconfigured and the connected device is not configured to use LACP, the port-channel interface will still work, but the configuration will not be dynamic. The interface will be in a forwarding state, but it will not be using LACP.
B. Enabled: If LACP is misconfigured and the switch is configured to use LACP, but the connected device is not configured to use LACP, the port-channel interface will be enabled, but it will not be functional. The interface will be up, but it will not transmit any data.
C. Disabled: If LACP is misconfigured and the switch is configured to use LACP, but the connected device is not configured to use LACP, the port-channel interface will be disabled. The interface will be down, and it will not transmit any data.
D. Errdisabled: If LACP is misconfigured and there is a misconfiguration on one of the ports in the port-channel interface, the entire port-channel interface will be placed in an errdisabled state. The interface will be down, and it will not transmit any data. The errdisabled state is a protective mechanism to prevent network loops and other issues.
In summary, the status of the port-channel interface if LACP is misconfigured depends on the specific misconfiguration. The possible outcomes are forwarding, enabled, disabled, or errdisabled.