A network designer is working with a company to improve convergence at the Layer 2 control plane and decides to use LACP.
Which of these components does LACP use to create the system ID?
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A. B. C. D.A.
Link Aggregation Control Protocol (LACP) is a standardized protocol used to bundle multiple physical links together into a single logical link. When LACP is enabled, each link is assigned an LACP state based on its operational status. LACP also creates a system ID to identify the LACP-enabled switches and ports that are part of the same LACP bundle.
The system ID is used by LACP to identify which ports belong to the same LACP bundle. The system ID is created using two components: LACP system priority and switch MAC address. The LACP system priority is a configurable value that is used to determine which switch will be the active switch if multiple switches are connected with LACP. The switch MAC address is a unique identifier for each switch, which is used to distinguish between switches with the same LACP system priority.
Therefore, the correct answer is A. LACP system priority and switch MAC address. Option B is incorrect because LACP port priority is not used to create the system ID. Option C is incorrect because LACP port priority and port number are used to determine the active port within an LACP bundle, but they are not used to create the system ID. Option D is incorrect because LACP system priority and port number are not sufficient to create a unique system ID, as multiple ports on the same switch can have the same port number.