Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 303

An engineer implements an Application Performance Monitoring (APM) solution. The solution runs in a vSphere infrastructure where the vSwitch support for promiscuous mode is disabled for security reasons. As a result, the final implementation must receive a copy of bidirectional traffic to a load balancer that is connected to a Cisco Nexus 93108 Series Switch. The APM solution supports GRE encapsulated traffic. Which configuration must be applied to the switch to meet this requirement?

Answer options

• A. interface vlan1 switchport monitor destination ip 10.1.1.1 exit monitor session 1 rx monitor session 1 tx source interface ethernet1/9
• B. monitor session 1 both source interface ethernet 1/9 destination interface ethernet 1/12 erspan-id 1 vrf mgmt0 filter vlan 3 no shut
• C. configure terminal monitor session 1 type erspan-source erspan-id 1 destination ip 10.1.1.1 source interface ethernet 1/9 both vrf default no shut
• D. interface ethernet 1/9 erspan-id 1 monitor session 1 type erspan-source interface mgmt0 monitor session 1 type erspan-destination destination ip 10.1.1.1 no shut

Correct answer: C

Explanation

The correct answer is C because it correctly sets up an ERSPAN source session with the appropriate destination IP for the APM solution's GRE encapsulated traffic. Options A and D do not configure the session type as ERSPAN, and option B does not specify the correct session type and configuration needed for bidirectional traffic capture.