2V0-41.24 Question 253
Select 3An organization has deployed NSX Federation across multiple sites. They want to extend a Layer 2 network segment across these sites to ensure seamless communication for a legacy application. Which considerations are relevant when extending Layer 2 segments using NSX Federation?
- A
NSX Federation supports Layer 2 extension across sites using Tier-0 gateways only.
- B
The Edge Nodes at each site are responsible for facilitating Layer 2 traffic between the sites.
- C
Layer 2 segments can be extended across sites using NSX-T Logical Switches backed by a Global Segment.
- D
Stretching Layer 2 networks across sites increases the network's failure domain.
- E
NSX Federation automatically optimizes routing for Layer 2 traffic between sites.
Show answer and explanation
Correct answers: B, C, D
Explanation
NSX Federation enables Layer 2 segment extension across multiple sites using Global Segments, allowing workloads to communicate seamlessly across those sites. However, this configuration requires Edge Nodes to facilitate inter-site Layer 2 traffic and comes with the trade-off of increasing the failure domain due to Layer 2 broadcast and fault propagation risks. Proper planning is required to mitigate these risks and ensure efficient network design.
- A. Incorrect.
Incorrect: NSX Federation allows Layer 2 network extension using Tier-1 gateways and Global Segments, not exclusively Tier-0 gateways.
- B. Correct.
Correct: Edge Nodes are critical in NSX Federation for enabling the inter-site Layer 2 traffic forwarding through the underlying transport network.
- C. Correct.
Correct: NSX Federation uses Global Segments to enable Layer 2 extensions across multiple sites, allowing seamless communication across those sites.
- D. Correct.
Correct: Stretching Layer 2 networks across sites does increase the failure domain, as a broadcast storm or other Layer 2 issues can propagate across all participating sites.
- E. Incorrect.
Incorrect: NSX Federation does not automatically optimize routing for Layer 2 traffic, as Layer 2 traffic is based on MAC address forwarding, not routing.