Which feature must be configured to allow packet capture over Layer 3 infrastructure?
- A. RSPAN
- B. ERSPAN
- C. VSPAN
- D. IPSPAN
Explanation: Encapsulated remote SPAN (ERSPAN): encapsulated Remote SPAN (ERSPAN), as the name says, brings generic routing encapsulation (GRE) for all captured traffic and allows it to be extended across Layer 3 domains.
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