VoIP Performance Monitoring and Troubleshooting

VoIP Performance Monitoring and Troubleshooting

The benefits of deploying Voice Over IP are clear. The converged infrastructure offers the promise of fewer resources to purchase, a more homogeneous environment that is easier to maintain, and more straightforward network monitoring and management, where improved performance and faster mean-time-to-repair result in a more satisfying experience for the user community.

But VoIP has its drawbacks as well. Packets are subject to latency, jitter, and even loss as they traverse the network from their source to their destination location. For data-oriented services, the ramifications of these events are typically minor and often go unnoticed. For voice services, the impacts to call quality can be devastating, rendering conversations unintelligible and putting the investment in convergence at risk.

VoIP Network Considerations

Be prepared to actively monitor performance from various points on the network, including the core, individual routers, and WAN links. Because VoIP problems can have a myriad of causes – from physical problems on the local loop and over utilized ports to misconfigured class of service settings and high levels of jitter within the voice application itself – institute a broad management and troubleshooting strategy for the converged network. Real-time and back-in-time perspectives are vital, to proactively circumvent emerging situations, resolve ongoing anomalies as rapidly as possible, and identify and correct intermittent problems.

Make the most of your investment by optimizing the converged network deployment. To do so requires capacity planning and traffic management, performance baselining, and a commitment to continuous improvement. Examining management information from the edge to the core can help make decisions such as if and where to increase bandwidth to account for additional usage caused by VoIP, which applications such as file sharing and streaming media are impeding performance, and how traffic should be shaped so the most business-critical and delay-sensitive services and applications receive priority.

VoIP Solutions for the Enterprise

Assessing and managing the VoIP network presents an entirely unique challenge from monitoring traditional data applications. As an example, there is a significant difference between an email taking 15 seconds to be sent and a garbled phone conversation.

TruView provides one of a kind visibility into VoIP quality of experience in an easy to understand graphical depiction of the call, with drill down into each individual call to understand the underlying degradation factors. TruView also distils this information to provide site level performance reports, allowing those who manage VoIP and the infrastructure to see where performance is degrading, and who is being affected. Only TruView can clearly illustrate both application (TCP) performance, as well as VoIP (UDP) performance, and thus their unique contention for infrastructure resources.

Technical Brief – VoIP Performance Management

Voice over IP, or VoIP, is a fairly common technology that causes endless frustrations with the infrastructure management team, and more typically, network engineers.

This technical brief will discuss the importance of troubleshooting VoIP with time correlated performance management data across traffic makeup, application performance, and VoIP stream quality by site.

 
Video – Solving VoIP Performance Problems

Learn how to quickly solve VoIP performance problems using TruView. Review the dashboard details, drill down to sites and users, and summarize reporting quickly.

 

 
Related Resources –

Case Study Global Call Center Calls on TruView for End-to-End Visibility

On-Demand Webcast Best Practices for Converging Network and Application Performance Monitoring

Free Software Trial ClearSight Protocol Analysis

 

 
 
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