History Control Entry

RMON can be used to create a record of network utilization, packet types, errors and collisions. You need a historical record of activity to track down intermittent problems. Historical data can also be used to establish normal baseline activity, which may reveal problems associated with high traffic levels, broadcast storms, or other unusual events. Historical information can also be used to predict network growth and plan for expansion before your network becomes too overloaded. Select “History” then “History Control Entry” to display the collection items defined in the history control table.

Item

Description

History Index

An index that uniquely identifies an entry in the History Control

 

table. Each such entry defines a set of samples at a particular

 

interval for an interface on the device.

Data Source

MIB variable that is being monitored:

 

1.3.6.1.2.1.2.2.1.1.1 - Agent board 100 Mbps interface

 

1.3.6.1.2.1.2.2.1.1.2 - Agent board 10 Mbps interface

 

1.3.6.1.2.1.2.2.1.1.3 - Serial port for out-of-band connection

 

1.3.6.1.2.1.2.2.1.1.4 - 100 Mbps stack backplane

 

1.3.6.1.2.1.2.2.1.1.5 - 10 Mbps stack backplane

 

1.3.6.1.2.1.2.2.1.1.6 - Stack Unit 1 100 Mbps segment

 

1.3.6.1.2.1.2.2.1.1.7 - Stack Unit 1 10 Mbps segment

 

...

 

1.3.6.1.2.1.2.2.1.1.16 - Stack Unit 6 100 Mbps segment

 

1.3.6.1.2.1.2.2.1.1.17 - Stack Unit 6 10 Mbps segment

Buckets Requested

Requested number of discrete time intervals over which data is

 

to be saved in the part of the media-specific table associated

 

with this entry.

Buckets Granted

Number of discrete sampling intervals over which data shall

 

actually be saved in the part of the media-specific table

 

associated with this entry.

Interval

Interval in seconds over which the data is sampled for each

 

bucket in the part of the media-specific table associated with

 

this entry.

Owner

Person who added this entry to the control table.

Status

Indicates if this control entry has been set to valid or invalid.

 

 

78 Web-Based Management

ELH100-12/24TX

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Cabletron Systems ELH100 manual History Control Entry
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ELH100 specifications

The Cabletron Systems ELH100 is a robust and innovative networking device that was designed for use in high-performance network environments. Introduced during the late 1990s, the ELH100 served as a valuable solution for enterprises looking to enhance their network efficiency and reliability. This device is particularly notable for its combination of advanced features, cutting-edge technologies, and versatile characteristics.

One of the main features of the ELH100 is its ability to support multiple Ethernet standards, including 10BASE-T and 100BASE-TX, making it highly flexible for diverse networking needs. This multi-standard support provided businesses with the ability to upgrade their networking infrastructure without entirely replacing existing equipment, allowing for a more cost-effective transition to higher-speed connections.

The ELH100 is equipped with a variety of ports, enabling it to connect to various devices seamlessly. Its design includes multiple media access control (MAC) addresses and the capability of supporting a sizable number of simultaneous connections. This design ensures optimal performance, even in environments requiring high data throughput.

In terms of technology, the ELH100 utilizes a pioneering architecture for load balancing and traffic management. This technology ensures that network bandwidth is used efficiently, minimizing bottlenecks and latency while maximizing throughput. Additionally, the device features hardware-based switching, which accelerates data transmission within the network, providing a competitive edge in applications that demand high-speed access.

Another defining characteristic of the ELH100 is its management capabilities. The device supports remote management via simple network management protocol (SNMP), allowing network administrators to monitor performance, configure settings, and troubleshoot issues from a central location. Such features not only enhance usability but also contribute to improved network uptime.

The ELH100 also emphasizes security features, including VLAN support, which permits the segmentation of network traffic. This capability helps in isolating different segments of the network, increasing both performance and security by preventing unauthorized access to sensitive data.

In summary, the Cabletron Systems ELH100 is a noteworthy networking solution that amalgamates versatility, efficiency, and advanced technology, making it a mainstay in the networking devices market during the era of its popularity. Its multi-standard support, hardware-based switching, management features, and security protocols underscore its capability to meet the evolving demands of enterprise networking environments.
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