A customer connects a high-speed Fibre Channel storage array to a Cisco MDS 9000 Series Switch using an 8 Gbps interface. Which action guarantees line rate traffic processing on the interface?

Setting global buffering with B2B_credits manages flow control across the entire fabric and improves overall performance but does not guarantee dedicated processing resources for a single interface to ensure line rate performance.

Setting local buffering with B2B_credits applies to a specific interface for flow control, but it does not inherently guarantee line rate processing if the underlying hardware processing resources for the port are shared with other interfaces.

Configuring the interface rate mode as dedicated on a Cisco MDS 9000 Series Switch ensures that the port's internal ASIC resources, including buffering and processing capabilities, are exclusively allocated to that specific interface. This dedicated allocation guarantees that the interface can process Fibre Channel traffic at its maximum line rate, such as 8 Gbps, without competition or performance degradation from other ports sharing resources.

Configuring the interface rate mode as shared means that the port's ASIC resources are shared among multiple ports, which can lead to oversubscription and potentially prevent an individual interface from consistently achieving line rate processing under heavy load.