2V0-41.24 Question 143
Select 2In a VMware NSX-T environment, a VM in Segment-A communicates with another VM in Segment-B. Both segments are connected to the same Tier-1 Gateway. Which steps accurately describe the datapath of this single-tier routing scenario?
- A
The packet is forwarded from the VM in Segment-A to the local distributed router (DR) instance on the ESXi host.
- B
The distributed router (DR) instance performs routing and forwards the packet directly to the destination VM on Segment-B.
- C
The Tier-1 Service Router (SR) is involved to route the packet between Segment-A and Segment-B.
- D
The packet is encapsulated using Geneve by the DR and sent to the destination ESXi host where the destination VM is located.
- E
The Tier-0 Gateway is consulted for inter-segment routing between Segment-A and Segment-B.
Show answer and explanation
Correct answers: A, B
Explanation
In a single-tier routing scenario where two segments are connected to the same Tier-1 Gateway, the local distributed router (DR) instance on the ESXi host handles the routing. The packet does not need to involve the Tier-1 Service Router (SR), Geneve encapsulation, or the Tier-0 Gateway, as the routing occurs entirely at the DR level within the Tier-1 Gateway.
- A. Correct.
Correct: In a single-tier routing scenario, packets are forwarded to the local distributed router (DR) instance residing on the ESXi host.
- B. Correct.
Correct: The distributed router (DR) performs routing at the host level and directly forwards the packet to the destination VM if it is reachable within the same Tier-1 Gateway.
- C. Incorrect.
Incorrect: The Tier-1 Service Router (SR) is not involved in this scenario because both segments belong to the same Tier-1 Gateway, and routing is handled at the DR level.
- D. Incorrect.
Incorrect: Geneve encapsulation is not required for routing between segments on the same Tier-1 Gateway within a single-tier routing setup.
- E. Incorrect.
Incorrect: The Tier-0 Gateway is only used for north-south traffic or inter-tier communication, not for routing within the same Tier-1 Gateway.