350-601 · Question #452
A network engineer connects the CNA interface of a server to a switch. The switch must bring down all of the VLANs on the interface that are not enabled for FCoE, but the VLANs that are enabled for…
The correct answer is A. switch(config)# interface Ethernet 2/1. To configure a switch port connected to a CNA to disable non-FCoE VLANs while maintaining FCoE traffic, the configuration must target the physical Ethernet interface.
Question
A network engineer connects the CNA interface of a server to a switch. The switch must bring down all of the VLANs on the interface that are not enabled for FCoE, but the VLANs that are enabled for FCoE should continue to carry SAN traffic without interruption. Which configuration should be applied to the switch to achieve this objective?
Options
- Aswitch(config)# interface Ethernet 2/1
- Bswitch(config)# interface vfc 2
- Cswitch(config)# Interface Ethernet vfc 2
- Dswitch(config)# interface Ethernet 2/1
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(31 responses)- A84% (26)
- B3% (1)
- C10% (3)
- D3% (1)
Why each option
To configure a switch port connected to a CNA to disable non-FCoE VLANs while maintaining FCoE traffic, the configuration must target the physical Ethernet interface.
The configuration snippet 'interface Ethernet 2/1' targets the physical Ethernet interface to which the CNA is connected. This is the correct interface to apply FCoE enablement and then selectively manage allowed VLANs, ensuring non-FCoE VLANs are brought down while FCoE VLANs continue to pass traffic.
'interface vfc 2' configures a Virtual Fibre Channel (VFC) interface, which is a logical interface for FCoE, but it does not directly control all VLANs on the underlying physical Ethernet port.
Concept tested: FCoE physical interface configuration
Source: https://www.cisco.com/c/en/us/td/docs/dcn/mds9000/nx-os/7x/fcoe/configuration/guide/b-cisco-mds-9000-nx-os-fcoe-configuration-guide-7x/b-cisco-mds-9000-nx-os-fcoe-configuration-guide-7x_chapter_01.html
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