What is a key design aspect to be considered when designing an IP network that will be carrying real-time VoIP traffic?
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When designing an IP network that will be carrying real-time VoIP traffic, the key design aspect to be considered is minimizing the total bidirectional end-to-end delay to 0-150 ms.
VoIP traffic is sensitive to delay, as it is real-time traffic that requires a seamless flow of data between the caller and the receiver. Any delay can result in poor voice quality, echo, or jitter.
Delay can be caused by several factors, such as network congestion, packet loss, and network equipment delay. Therefore, it is crucial to design a network that minimizes delay and ensures a smooth flow of VoIP traffic.
Bidirectional end-to-end delay is the time it takes for a packet to travel from the caller to the receiver and back again. The total bidirectional end-to-end delay should be between 0-150 ms to ensure good voice quality and an acceptable user experience.
The delay can be minimized by designing a network with low-latency routers and switches, reducing network congestion, and ensuring proper bandwidth allocation for VoIP traffic. Additionally, implementing Quality of Service (QoS) policies can prioritize VoIP traffic and ensure its delivery with minimal delay.
In conclusion, minimizing the total bidirectional end-to-end delay to 0-150 ms is a critical design aspect when designing an IP network that will be carrying real-time VoIP traffic.