2V0-41.24 Question 360
Select 3You are tasked with troubleshooting a connectivity issue in a VMware NSX-T Data Center environment. The issue involves a specific tenant's virtual machines not being able to communicate with an external network. Each tenant has been configured with its own VRF (Virtual Routing and Forwarding) instance. As part of your investigation, you decide to review the routing table of the relevant VRF. What information should you look for to identify potential routing issues?
- A
The existence of a default route in the VRF routing table
- B
The next-hop IP addresses for all routes in the VRF routing table
- C
The number of BGP neighbors peered with the VRF instance
- D
The presence of duplicate routes pointing to different next hops
- E
The availability of route redistribution configurations in the VRF
Show answer and explanation
Correct answers: A, B, D
Explanation
When reviewing the routing table of a VRF, the focus should be on identifying potential routing anomalies such as missing default routes, unreachable or incorrect next hops, and conflicting routes. These factors directly impact the ability of the VRF to forward traffic correctly. While other aspects, such as BGP neighbor count or route redistribution, are important in the broader context of network design, they are not the primary focus of the routing table inspection.
- A. Correct.
The existence of a default route is crucial as it ensures that packets destined for unknown networks can be forwarded properly. Its absence can cause connectivity issues.
- B. Correct.
Next-hop IP addresses indicate where traffic is forwarded. Incorrect or unreachable next hops can lead to packet drops or routing loops.
- C. Incorrect.
While the number of BGP neighbors is important for route advertisement, it is not directly relevant to reviewing the routing table in a VRF for connectivity issues.
- D. Correct.
Duplicate routes pointing to different next hops can lead to inconsistent forwarding behavior and are a potential issue when troubleshooting routing problems.
- E. Incorrect.
Route redistribution is relevant for sharing routes between routing protocols, but its configuration is not directly visible in the VRF routing table itself.