Learn how VMware SD-WAN leverages link steering, sub-second failover, jitter buffering, and packet duplication to optimize voice traffic and user experience between branch and hub locations with multiple WAN connections.
Table of Contents
Question
There is voice traffic between the branch and the hub. There are multiple connections between the branch and the hub.
What is the combination of ways that VMware SD-WAN can help improve the user experience?
A. Link Steering, Sub-second failover, Packet duplication, Jitter Buffer
B. Sub-second failover, Packet Duplication, Packet Sequencing, Link Steering
C. Packet duplication, Link Aggregation, Sub-second failover, Packet Sequencing
D. Jitter Buffer, Packet Duplication, Link Aggregation, UDP Optimization
Answer
A. Link Steering, Sub-second failover, Packet duplication, Jitter Buffer
Explanation
The correct answer is A. VMware SD-WAN can help improve the user experience for voice traffic between a branch and hub with multiple connections in the following ways:
Link Steering: SD-WAN intelligently monitors the quality and performance of each WAN link in real-time. For latency-sensitive traffic like voice, it automatically steers packets over the link with the lowest latency and packet loss. This optimizes voice quality.
Sub-second Failover: If a WAN link fails or degrades, SD-WAN near-instantly fails over voice traffic to the next best available link, typically in under a second. This minimizes voice disruptions.
Packet Duplication: For critical real-time traffic like voice, SD-WAN can be configured to duplicate voice packets and send them over multiple links simultaneously. If one packet is lost, the other likely makes it through.
Jitter Buffering: SD-WAN buffers incoming voice packets and spaces them out evenly before sending them to the receiving application. This irons out jitter caused by queuing and link congestion.
Together, these capabilities prioritize and protect voice between branches and hubs, even during link issues. While some other answers contain valid SD-WAN features, only choice A lists the optimal combination for voice traffic.
In summary, VMware SD-WAN’s intelligent link steering, rapid failover, selective duplication, and jitter correction enable high-quality voice experiences across multiple branch-to-hub connections. Let me know if you need any clarification or have additional questions!
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