2V0-41.24 Question 327
Single answerAn organization has deployed a Tier-0 gateway in an NSX-T environment to provide north-south routing. During validation, the network team uses the network topology tool in the NSX Manager UI. The team observes that the Tier-0 gateway is in a 'down' state, and the uplink interfaces are not showing as connected. Which step should the team take to resolve this issue?
- A
Verify that the physical router connected to the Tier-0 gateway has proper routing protocols configured.
- B
Ensure that the Tier-0 gateway is associated with an Edge Node for uplink connectivity.
- C
Check if the Tier-1 gateway is attached to the Tier-0 gateway.
- D
Validate that the VLANs configured on the Tier-0 uplink interfaces match the VLANs on the physical switch.
Show answer and explanation
Correct answer: B
Explanation
The Tier-0 gateway requires an Edge Node association to establish uplink connectivity to the physical network. Without this association, the Tier-0 gateway will show as 'down' in the network topology, and its uplink interfaces will not function. Validating this configuration is a critical troubleshooting step for resolving connectivity issues observed in the NSX Manager UI.
- A. Incorrect.
While routing protocols on the physical router are important for north-south traffic, this does not explain why the Tier-0 gateway and its uplinks are down in the topology.
- B. Correct.
A Tier-0 gateway must be associated with an Edge Node to enable uplink connectivity. Without this association, the Tier-0 gateway cannot communicate with the physical network, leading to a 'down' state in the topology.
- C. Incorrect.
The attachment of a Tier-1 gateway to a Tier-0 gateway is not mandatory for the Tier-0 gateway to be in an 'up' state. This is unrelated to the observed issue.
- D. Incorrect.
While VLAN mismatches on the physical switch could cause communication problems, they would not cause the Tier-0 gateway itself to show as 'down' in the topology.