A network engineer is configuring a Cisco MDS switch for FCoE.
Which two conditions must be considered during the implementation phase? (Choose two.)
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A. B. C. D. E.BE.
Sure, I'd be happy to explain each of the options and help you understand which two conditions must be considered during the implementation phase when configuring a Cisco MDS switch for FCoE.
A. On Cisco MDS switches, system-defined class maps for class-FCoE and class-default are enabled but can be deleted.
Explanation: Class maps are used to classify traffic based on specific characteristics and then apply policies to those traffic classes. Cisco MDS switches come with two pre-defined class maps for FCoE traffic - class-FCoE and class-default. These class maps can be modified but should not be deleted as they are required for proper FCoE functionality.
B. The QoS policy must be identical to other Cisco FCoE switches in the network.
Explanation: Quality of Service (QoS) is important for FCoE traffic because it ensures that the most critical traffic, such as storage traffic, receives the appropriate priority and is not affected by other traffic. Therefore, it is important to maintain consistent QoS policies across all FCoE switches in the network to ensure proper traffic prioritization.
C. On the Cisco MDS, the MTU is set equal to 2112.
Explanation: Maximum Transmission Unit (MTU) is the maximum size of a packet that can be transmitted across a network. For FCoE, the MTU must be set to 2112 bytes to allow for the encapsulation of Fibre Channel frames within Ethernet frames. Therefore, it is important to set the MTU to 2112 on the Cisco MDS switch when configuring it for FCoE.
D. VLAN 1 or the native VLAN can be mapped to an FCoE VSAN.
Explanation: VLANs are used to isolate traffic within a network. FCoE operates within a specific Virtual Storage Area Network (VSAN). It is recommended to map VLAN 1 or the native VLAN to an FCoE VSAN. However, this is not a requirement and other VLANs can also be mapped to an FCoE VSAN if desired.
E. FCoE is already enabled on a Cisco MDS switch.
Explanation: This option is not relevant to the implementation phase as it assumes that FCoE is already enabled on the Cisco MDS switch.
Based on the explanations above, the two conditions that must be considered during the implementation phase when configuring a Cisco MDS switch for FCoE are: