An engineer must configure an ERSPAN session on a Cisco Nexus 9000 Series Switch.

The Nexus switch is receiving encapsulated mirrored traffic from a remote ERSPAN source and delivering the decapsulated packets to a locally connected analyzer. It must therefore be configured as an ERSPAN destination, as shown in option B. The ERSPAN ID and source IP address identify the incoming ERSPAN stream, while Ethernet1/10 is configured as the local destination interface. The no shut command activates the session because ERSPAN sessions are initially shut down. Option C incorrectly configures an ERSPAN source session and treats the analyzer interface as a source. Options A and D use invalid or inappropriate local-SPAN syntax and do not establish an ERSPAN destination session. Cisco documentation confirms that an ERSPAN destination session copies packets received from a configured source IP address to destination ports on the local device. Cisco ERSPAN configuration guide