10.5.1.2 History Group

The token-ring History groups capture historical information about network utilization and error statistics for the token-ring network. They provide a means of correlating the data collected by the Statistics group over time. They record statistical samples according to a user-specified frequency and duration and store them for later retrieval.

The History MIB can be used to gather separate studies collected simultaneously from various probes and at different intervals. For instance, you can set up a session to collect statistical data via the Statistics MIB from several probes every 10 seconds for real-time monitoring. The History MIB can be configured to gather statistics from the same sources at intervals of 30 seconds for an ongoing portrait, and at 30-minute intervals for later study.

It is advisable to set up two history control entries per monitored interface upon initialization. They can be a combination of short term polling at 30-second intervals and long term polling at 30-minute intervals.

Each interval saved is referred to as a bucket″. The number of buckets to be used is defined by the operator. The intervals over which the data is sampled for each bucket can be set to any number of seconds from one to 3600 (one hour).

Note

It is important to configure the appropriate time interval for sampling the statistical data as no indication will be given when the statistical counters overflow their maximum value. For instance, on a heavily-loaded token-ring segment, the tokenRingMLHistoryMacOctets counter could overflow in a short time. Following this, the information stored in this counter will not reflect a correct value. Once the maximum value is reached it will reset to zero and begin incrementing again.

The History groups are broken down into two sub-groups (similar to the token-ring Statistics groups):

MAC-Layer History group

Promiscuous History group

MAC-Layer History Group: The token-ring MAC-Layer History group will collect and store the MAC-layer statistics based on user-defined frequency and duration. This group contains a total of 24 different counters for collecting and storing the following MAC-layer statistics:

Drop Events

Mac Octets

Mac Packets

Ring Purge Events

Ring Purge Packets

Beacon Events

Beacon Time

Beacon Packets

Claim Token Events

Claim Token Packets

NAUN Changes

208 8260 Multiprotocol Intelligent Switching Hub

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IBM manual 208 8260 Multiprotocol Intelligent Switching Hub

8260 specifications

The IBM 8260 is a significant entry in the realm of enterprise servers, recognized for its performance, scalability, and robust features designed to cater to demanding business environments. It primarily serves as a high-capacity server for large organizations, capable of handling extensive workloads and complex applications without compromising speed or efficiency.

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In conclusion, the IBM 8260 stands out in the competitive server landscape due to its high processing power, extensive memory and storage options, advanced connectivity, reliability features, and robust management tools. Such attributes make it a viable choice for organizations seeking to enhance their IT infrastructure and streamline their operations effectively.