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Network Instruments 114ff manual TIP! Active Probe Instance Best Practices

Models: 114ff

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TIP! ACTIVE PROBE

INSTANCE BEST

PRACTICES

rev. 1

instances to the Gen2 adapter if at all possible. A copy of all packets are sent from the adapter to every passive probe instance attached to it. If you have several passive probe instances attached to the Gen2 adapter, the Gen2’s performance is significantly affected. Instead attach the passive probe instances to either a 10/100/1000 adapter or to a non-existent one.

If you have a passive probe instance connected to a GigaStor, it can mine data that has already been written to the RAID disk by an active probe instance. There should be one passive probe instance for each simultaneous Observer user on a GigaStor. By using a passive probe instance instead of an active probe instance only one copy of data is being captured an written to disk, which reduces the processor load and the required storage space. For troubleshooting and most uses in Observer passive probe instances are appropriate.

By default a passive probe instance uses 12 MB of RAM. You can reserve more memory for passive probe instances if you wish.

An active probe instance on a GigaStor captures network traffic and writes it to the RAID array. A active probe instance should have as large of a RAM buffer as possible to cushion between the network throughput rate and the array write rate.

Like a passive probe instance, it can also be used to mine data from the hard disk, however a passive instance is better suited for the task. An active probe instance cannot start a packet capture while the GigaStor Control Panel is running.

Only one active probe instance per GigaStor.

Set scheduling to Always for the active probe instance so that it is constantly capturing and writing data. Use a passive probe instance to mine the data.

Do not pre-filter, unless you know exactly what you want to capture. Of course, if something occurs outside the bounds of the filter, you will not have the data in the GigaStor.

Do not allow remote users access to the active probe instance.

What is a probe instance? 113

Chapter 8 Probe Instances

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Network Instruments 114ff manual TIP! Active Probe Instance Best Practices
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114ff specifications

Network Instruments 114ff is a sophisticated platform designed to enhance network visibility and performance management. This state-of-the-art device is aimed at network professionals who require a deep insight into their network’s behavior and performance metrics. One of its main features is its ability to provide real-time monitoring and analytics, which is crucial for quick decision-making in IT environments.

With a robust set of technologies embedded in its architecture, Network Instruments 114ff leverages advanced packet capture and analysis capabilities. It employs deep packet inspection (DPI) technology to evaluate data packets as they traverse the network. This functionality allows administrators to dissect various layers of network traffic, enabling them to identify anomalies and troubleshoot issues effectively. The 114ff can analyze both encrypted and unencrypted traffic, an asset as organizations increasingly adopt encryption protocols.

Another prominent feature of the Network Instruments 114ff is its customizable dashboard, which can be tailored to present the most relevant metrics at a glance. Users can visualize their network performance through a variety of graphs, charts, and alerts signaling potential performance degradation. This feature aids network managers in assessing key performance indicators (KPIs) and helps ensure that service level agreements (SLAs) are met.

The device is equipped with extensive reporting capabilities, allowing users to generate historical reports for analysis and compliance purposes. This function is essential for businesses that must comply with regulatory standards, as it enables them to maintain records of network performance and security incidents.

Furthermore, Network Instruments 114ff supports a variety of network protocols, ensuring compatibility with existing infrastructure. Its scalable architecture means organizations can adapt the device to cater to growing network demands without the need for significant overhauls. The integration capability with other Network Monitoring Systems (NMS) positions it as a flexible solution suited for diverse environments.

In summary, Network Instruments 114ff stands out as an essential tool for IT professionals looking to optimize network performance. With features such as real-time monitoring, deep packet inspection, customizable dashboards, and robust reporting capabilities, it delivers a comprehensive solution to manage and enhance network infrastructures effectively.