Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 235

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?

Answer options

• A. switch(config)# interface Ethernet 2/1 switch(config-if)# shutdown force
• B. switch(config)# interface Ethernet 2/1 switch(config-if)# shutdown lan
• C. switch(config)# interface Ethernet vfc 2 switch(config-if)# shutdown force
• D. switch(config)# interface vfc 2 switch(config-if)# shutdown lan

Correct answer: B

Explanation

The correct answer is B because using 'shutdown lan' on the specified Ethernet interface disables all LAN traffic, effectively bringing down non-FCoE VLANs while allowing FCoE-enabled VLANs to remain active. Option A incorrectly uses 'shutdown force', which isn't appropriate for the intended configuration. Options C and D involve VFC interfaces, which are not relevant to the scenario as the configuration needs to apply to the Ethernet interface.