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Question 22/85
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about symmetric IRB forwarding are correct?
Correct Answer: A,B
Comprehensive and Detailed Explanation:
VXLAN Symmetric IRB (Integrated Routing and Bridging) Forwarding is used for inter-subnet communication between different VXLAN networks.
# L3VNI is used for inter-subnet traffic # (A) Correct# Both ingress and egress VTEPs perform Layer 3 forwarding # (B) Correct Why Are the Other Options Incorrect?
# C (Incorrect): The ingress VTEP uses both L2 and L3 forwarding (not just L2).# D (Incorrect): The egress VTEP also performs L3 forwarding before sending packets to the destination VTEP.
# Reference: Huawei HCIE Datacom - VXLAN Symmetric IRB Forwarding
VXLAN Symmetric IRB (Integrated Routing and Bridging) Forwarding is used for inter-subnet communication between different VXLAN networks.
# L3VNI is used for inter-subnet traffic # (A) Correct# Both ingress and egress VTEPs perform Layer 3 forwarding # (B) Correct Why Are the Other Options Incorrect?
# C (Incorrect): The ingress VTEP uses both L2 and L3 forwarding (not just L2).# D (Incorrect): The egress VTEP also performs L3 forwarding before sending packets to the destination VTEP.
# Reference: Huawei HCIE Datacom - VXLAN Symmetric IRB Forwarding
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