In general, the WAN analysis works much like Ethernet analysis. One difference is that, when appropriate, Observer identifies WAN links by their Data Link Connection Identifier (DLCI) rather than by MAC address as is done with standard protocol analysis. In addition, many WAN statistical modes break out the data by DCE, DTE, and summary to reflect the full-duplex nature of WAN links. Modes unrelated to WAN analysis are greyed out and unavailable.

The following sections describe how the available Observer modes operate to analyze a WAN link.

“Discover Network Names” on page 80

“WAN Bandwidth Utilization” on page 82

“WAN Vital Signs by DLCI” on page 83

“WAN Load by DLCI” on page 84

“WAN Top Talkers” on page 86

“WAN Filtering” on page 87

“Triggers and Alarms” on page 88

Discover Network Names

To access this mode, choose Tools →Discover Network Names

Discover Network Names mode will show DLCIs instead of MAC addresses. You can also define the Committed Information Rate for each DLCI you are monitoring with WAN Observer.

Setting the Committed Information Rate (CIR) for a DLCI

The Committed Information Rate defines the guaranteed bandwidth for a WAN connection. If you want Observer’s WAN Vital Signs and WAN Load by DLCI to monitor CIR compliance, you must specify the CIR. A number of WAN triggers and alarms also use this information, allowing you to be notified if the link is not performing to the CIR.

For encapsulations that do not use DLCI (such as X.25), just use the address scheme for your encapsulation.

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Discover Network Names

 

Chapter 5 Using Observer with a WAN Probe

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Network Instruments 114ff manual Discover Network Names, Setting the Committed Information Rate CIR for a Dlci

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.