Alarm Configuration

The top portion of the window contains the device information boxes, as well as the event index number and the event description; the log itself includes the following fields:

Index

This index number is not the event’s index, but a separate

 

index that uniquely identifies this occurrence of the

 

event.

Time

Indicates the date and time of each event occurrence.

Description

Provides a detailed description of the alarm that

 

triggered the event: whether it was a rising or falling

 

alarm, the alarm index number, the alarm variable name

 

and object identifier (OID), the alarmSampleType

 

(1=absolute value; 2=delta value), the value that

 

triggered the alarm, the configured threshold that was

 

crossed, and the event description. Use the scroll bar at

 

the bottom of the log to view all the information

 

provided.

Each log will hold only a finite number of entries, which is determined by the resources available on the device; when the log is full, the oldest entries will be replaced by new ones.

How Rising and Falling Thresholds Work

Rising and falling thresholds are intended to be used in pairs, and can be used to provide notification of spikes or drops in a monitored value — either of which can indicate a network problem. To make the best use of this powerful feature, however, pairs of thresholds should not be set too far apart, or the alarm notification process may be defeated: a built-in hysteresis function designed to limit the generation of events specifies that, once a configured threshold is met or crossed in one direction, no additional events will be generated until the opposite threshold is met or crossed. Therefore, if your threshold pair spans a wide range of values, and network performance is unstable around either threshold, you will only receive one event in response to what may be several dramatic changes in value. To monitor both ends of a wide range of values, set up two pairs of thresholds: one set at the top end of the range, and one at the bottom. Figure 3-8illustrates such a configuration.

How Rising and Falling Thresholds Work

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Cabletron Systems 9H42X-XX manual How Rising and Falling Thresholds Work
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9H42X-XX specifications

Cabletron Systems 9H42X-XX is an advanced networking device recognized for its robust performance and reliability in various enterprise environments. Designed to meet the growing demands of data communication, this model serves as a vital component of network infrastructure, offering a myriad of features and technologies.

One of the standout characteristics of the 9H42X-XX is its high-speed data processing capabilities. Equipped with multiple Gigabit Ethernet ports, it ensures rapid data transfer rates, making it ideal for bandwidth-intensive applications. This model supports both IPv4 and IPv6 addressing, ensuring compatibility with modern networking standards and future-proofing the investment for organizations transitioning to newer technologies.

The 9H42X-XX excels in flexibility and scalability, accommodating a range of networking topologies. Its modular design allows for the addition of different interface cards, catering to specific networking requirements such as VoIP, video streaming, and cloud services. This adaptiveness is crucial for organizations that must optimize their network as needs evolve over time.

Security is a primary consideration in the design of the 9H42X-XX. With built-in firewall capabilities and support for advanced encryption protocols, data integrity and confidentiality are ensured. Furthermore, the device offers robust access control features, allowing organizations to define user permissions and protect sensitive information from unauthorized access.

Another important feature is the comprehensive management options available with the 9H42X-XX. It provides a user-friendly interface for network administrators to monitor traffic, configure settings, and troubleshoot issues. This ease of management contributes to reduced downtimes and better overall network efficiency.

Additionally, the Cabletron Systems 9H42X-XX is known for its durability and performance consistency in varying environmental conditions. This resilience makes it suitable for both indoor and outdoor deployments, further extending its usability across different types of organizations.

In summary, the Cabletron Systems 9H42X-XX is a versatile networking solution that combines high-speed connectivity, security features, and ease of management within its robust architecture. Its adaptability and technical specifications position it as a reliable choice for enterprises looking to upgrade their network infrastructure and accommodate future growth.
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