How can you avoid flooding of multicast frames in a Layer 2 network?
- Disable unknown multicast flooding
- Enable multicast storm control
- Enable IGMP snooping
- Enable control plane policing
Explanation: IGMP snooping, defined in RFC 4541, examines IGMP joins sent by receivers and maintains a table of interfaces to IGMP joins. When a switch receives a multicast frame destined for a multicast group, it forwards the packet only out the ports where IGMP joins were received for that specific multicast group. This prevents multicast traffic from flooding in a Layer 2 network.
Exam with this question: CCNPv8 ENCOR Chapter 13: Do I Know This Already? Quiz Answers
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