2V0-41.24 Question 131
Select 3A network administrator is configuring a VMware NSX-T Data Center environment to ensure both high availability and efficient traffic distribution across multiple uplinks. The administrator decides to use Equal-Cost Multi-Path (ECMP) routing. Which of the following statements are true about ECMP and high availability in this scenario?
- A
ECMP allows traffic to be distributed across multiple paths of equal cost, improving bandwidth utilization.
- B
High availability with ECMP is achieved by configuring active/passive failover for the uplinks.
- C
If a transport node fails, ECMP ensures automatic redistribution of traffic to other available paths.
- D
ECMP requires all paths to have the exact same latency; otherwise, it cannot distribute traffic effectively.
- E
In an NSX-T environment, ECMP can support up to 8 paths for a single route.
Show answer and explanation
Correct answers: A, C, E
Explanation
ECMP in NSX-T Data Center provides high availability and efficient traffic distribution by leveraging multiple equal-cost paths in an active/active manner. It ensures traffic redistribution in case of node or link failures and supports up to 8 paths for a single route. However, it does not require exact latency matching and does not operate in an active/passive failover mode.
- A. Correct.
ECMP is explicitly designed to take advantage of multiple equal-cost paths to distribute traffic, improving overall bandwidth utilization and resiliency.
- B. Incorrect.
This is incorrect because ECMP does not use an active/passive model; it operates in an active/active manner to distribute traffic across all available paths.
- C. Correct.
If a transport node or link fails, NSX-T redistributes traffic across the remaining available paths, ensuring minimal disruption.
- D. Incorrect.
While latency differences can impact performance, ECMP does not require all paths to have the exact same latency. It relies on paths being of equal cost in the routing table, not equal latency.
- E. Correct.
NSX-T supports up to 8 equal-cost paths for a single route in an ECMP configuration, enabling robust scalability.