Getting back to the question at hand, in a virtual or hybrid network, both active and passive monitoring are necessary to get the full picture.
Active monitoring should be used to provide real-time visibility into service level performance, or quality of service (QoS). Used in this way, it can provide an early warning of performance degradations, potentially even before the customer notices. And by having this level of visibility on most, if not all services in the network gives automated troubleshooting tools the ability to quickly triage impacted services and identify hotspots or common cause elements to ensure the most critical issues are addressed first. Network Troubleshooting ways
Passive monitoring can be used to support two key operations functions. First, it should be used for post event analysis, such as root cause determination or malicious traffic identification. By building a historical profile of traffic flows and signaling, analysis can be carried out to look for anomalous traffic, such as distributed denial of service attacks, or unusual or indicative signaling, like excess call drops or high retransmission activity. Secondly, passive monitoring is ideal for building a detailed understanding of customer usage patterns and application performance, allowing carriers to directly monitor quality of experience (QoE). Detailed information from this aspect provides a wealth of information to create customized service bundles based on usage preferences, plan network and system upgrades to match demand growth and identify opportunities for new services.
Active monitoring should be used to provide real-time visibility into service level performance, or quality of service (QoS). Used in this way, it can provide an early warning of performance degradations, potentially even before the customer notices. And by having this level of visibility on most, if not all services in the network gives automated troubleshooting tools the ability to quickly triage impacted services and identify hotspots or common cause elements to ensure the most critical issues are addressed first. Network Troubleshooting ways
Passive monitoring can be used to support two key operations functions. First, it should be used for post event analysis, such as root cause determination or malicious traffic identification. By building a historical profile of traffic flows and signaling, analysis can be carried out to look for anomalous traffic, such as distributed denial of service attacks, or unusual or indicative signaling, like excess call drops or high retransmission activity. Secondly, passive monitoring is ideal for building a detailed understanding of customer usage patterns and application performance, allowing carriers to directly monitor quality of experience (QoE). Detailed information from this aspect provides a wealth of information to create customized service bundles based on usage preferences, plan network and system upgrades to match demand growth and identify opportunities for new services.
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