2V0-41.24 Question 130
Single answerAn organization has deployed VMware NSX-T Data Center in their environment and configured Equal-Cost Multi-Pathing (ECMP) to improve network performance and redundancy. During a routine failover test, one of the transport nodes fails. The administrator observes that traffic continues to flow without disruption. Which feature of ECMP and high availability ensures this seamless failover?
- A
Dynamic path rebalancing
- B
Per-flow traffic distribution
- C
Converged network recovery
- D
Stateful failover mechanism
Show answer and explanation
Correct answer: B
Explanation
Equal-Cost Multi-Pathing (ECMP) in VMware NSX-T Data Center distributes traffic across multiple available paths using a hashing algorithm. This per-flow traffic distribution ensures that in the event of a path failure, the remaining paths continue to handle traffic seamlessly without requiring additional rebalancing or stateful mechanisms. This is a critical feature for achieving high availability and redundancy in a virtualized network environment.
- A. Incorrect.
Dynamic path rebalancing is not a specific feature of ECMP in NSX-T. ECMP relies on pre-established routes and hash algorithms rather than dynamically rebalancing flows after a path failure.
- B. Correct.
Per-flow traffic distribution is a key feature of ECMP in NSX-T. It ensures that traffic is distributed across multiple available paths using a hashing algorithm. In case of a path failure, remaining paths handle the traffic without disruption, ensuring seamless failover.
- C. Incorrect.
Converged network recovery is not a term or feature associated with ECMP in VMware NSX-T. It is unrelated to how ECMP handles path failures.
- D. Incorrect.
Stateful failover mechanism is part of high availability for services like Edge nodes or firewalls but is not directly related to how ECMP handles path distribution and failover.