What is Network Visibility?

Network visibility is becoming more and more important as organizations face the challenges of deploying increasingly complex network services such as security, performance management, and monitoring on an ever-evolving and expanding network and data center architecture. 

In an ideal world, you would cover every link to prevent blind spots in your network visibility layer. However, due to issues like budget constraints or port limitations, this may not be possible. Therefore, visibility on the high capacity links and other critical points on your network should be prioritized. A central visibility controller management system can serve as a force multiplier on the links that you have covered.

The types of network tools to empower your network visibility primarily include monitoring and inspection tools that are supported by such components as network TAPs, packet brokers (NPBs), and bypass switches. Each of these devices has an important function and promotes comprehensive coverage of all aspects of your network. Depending on the network architectural design – and what works best for your needs – some devices are placed in-line or out-of-band, while others are designed to specifically work out-of-band. In some cases, hybrid combinations of the devices are used that further enhance the visibility.

 

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The key to ensuring proper network visibility is creating a network visibility mediation layer that comprises strategically placed network interception TAPs, network bypasses, and intelligent packet brokers.
This kind of comprehensive visibility is called “Pervasive”.
 
A pervasive visibility layer not only increases network security, but also holds key advantages in reducing downtime in maintenance periods, improving network service recovery time, and increasing your overall ROI. If your network visibility layer is not pervasive, you risk network blind spots potentially compromising your security and network performance.
 
For pervasive network visibility, it is vital that you approach the visibility layer with a cohesive agile strategy that takes into account the current status of your network, and areas where your network and services may grow or the topology may change.