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An engineer is implementing FCoE. Which aspect of DCBXP on a Cisco Nexus switch affects this implementation?

A.

It uses the Cisco Fabric Services protocol to exchange parameters between two peer links.

Answers
A.

It uses the Cisco Fabric Services protocol to exchange parameters between two peer links.

B.

It always is enabled on 10/100-Mbps native Ethernet ports.

Answers
B.

It always is enabled on 10/100-Mbps native Ethernet ports.

C.

It provides the authentication of peers on the Cisco Nexus switch.

Answers
C.

It provides the authentication of peers on the Cisco Nexus switch.

D.

It requires that LLDP transmit and LLDP receive are enabled on the FCoE interface.

Answers
D.

It requires that LLDP transmit and LLDP receive are enabled on the FCoE interface.

Suggested answer: D

Explanation:

FCoE (Fibre Channel over Ethernet) requires a lossless Ethernet network to ensure that no frames are dropped, which is crucial for storage traffic. DCBXP (Data Center Bridging Exchange Protocol) is part of the DCB (Data Center Bridging) suite of protocols that help to create a lossless Ethernet by providing a means to exchange parameters between peers to ensure consistent configuration across the network. For FCoE to function correctly on a Cisco Nexus switch, it is essential that LLDP (Link Layer Discovery Protocol) transmit and receive capabilities are enabled on the interface where FCoE is configured. This allows the switch to advertise and receive configuration information for parameters like priority-based flow control (PFC) and Enhanced Transmission Selection (ETS), which are critical for the lossless operation required by FCoE.

asked 10/10/2024
Rowan Cele
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