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eSight V300R010C00 Operation Guide 07

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
SLA Management Introduction

SLA Management Introduction

This section describes the definition, functions, application restrictions, and key indicators of SLA management.

Definition

A service level agreement (SLA) is an agreement between the service provider and customers to ensure the performance and reliability of services to be provided at certain costs.

eSight SLA is a network performance measurement and diagnosis tool. It sends diagnosis packets between multiple NEs or links to measure network performance.

Functions

Service Level Agreement (SLA) Manager measures and diagnoses network performance. You can create SLA tasks to periodically monitor the network delay, jitter, and packet loss rate, and calculate the compliance of SLA services on the live network.

By default, SLA Manager offers 24 services. You can also customize services to meet your specific demands. SLA Manager offers the Dashboard to globally monitor SLA tasks and allows you to quickly learn the quality of all or specific services on the live network. On the SLA view page, you can establish a view that consists of multiple tasks, which helps you compare task data. Quick diagnosis helps you quickly diagnose the links and carried services between source and destination devices, facilitating network fault location.

Figure 12-75 SLA management overview
Dashboard

The SLA dashboard globally monitors SLA tasks and displays the recent smart policy tasks, SLA test instance counters, and minimum SLA compliance. You can add tasks to and delete tasks from the dashboard and set the criteria to filter SLA tasks to be displayed on the dashboard.

Figure 12-76 SLA Dashboard
SLA Service Management

With SLA service management, you can define SLA levels. This module provides 24 predefined templates for common services such as voice over IP (VoIP), video, and data services. You can customize the compliance threshold and network quality counter threshold based on network conditions and operation and maintenance requirements.

Figure 12-77 SLA service management
Figure 12-78 Creating an SLA service
SLA Task Management

SLA tasks periodically monitor various counters, such as the delay, jitter, and packet loss ratio on a network. You can create, delete, start, stop, and redeliver SLA tasks, copy an existing task to create a task, and import and export tasks in batches on the SLA task management page. Shortcut operation entries are available for you to view historical data, alarms, and perform the quick diagnosis operation. The SLA task execution interval can be adjusted automatically. When network quality degrades, the execution interval is shortened, so you can obtain more detailed quality degradation information.

Figure 12-79 SLA task management
SLA View Management

You can add multiple SLA tasks to an SLA view to view the historical data of these tasks.

Figure 12-80 SLA view
Quick Diagnosis

You can use this function to measure the SLA service quality without creating any task.

Figure 12-81 Quick diagnosis
Historical Data

Historical service quality data such as the overall compliance and the data of a single counter is displayed in graphs. You can click an SLA task name on the SLA task page to switch to the historical data page of this task.

Historical data of multiple SLA tasks can be displayed on the same page.

You can switch from historical SLA data to historical NTA data and historical QoS interface data.

Figure 12-82 Historical data
Figure 12-83 Viewing the historical data of multiple tasks
SLA Reports

This module provides SLA service quality reports, SLA task counter reports, and Top N SLA compliance reports.

Application Restrictions

  • The 30-second periodic task of the SLA supports a maximum of 30 test cases.
  • The function of importing SLA tasks in batches supports only ICMP Echo, ICMP Jitter, UDP Echo, and UDP Jitter test cases. A maximum of 500 or 1000 tasks can be imported at a time. (For details, see the information on the page.)
  • The function of exporting SLA tasks in batches supports only ICMP Echo, ICMP Jitter, UDP Echo, and UDP Jitter test cases. For tasks of other test cases, only basic task information can be exported. Specific test case parameters cannot be exported.
  • Northbound data can only be used in ICMP Echo test cases.
  • The corresponding service must be enabled on target devices of the SLA task. For example, the UDP service must be enabled on target devices of the UDP Echo test cases.
  • After a device periodic task is created, the periodic test cases will not be deleted from devices when the NMS is uninstalled.
  • After a device periodic task is created, the task configuration cannot be deleted or modified on the device. Otherwise, the eSight task will be abnormal.
  • If you create a large number of test cases on one device, the number of simulated packets will be excessively large. As a result, the device performance is affected, or the result is incorrect. Ensure that the number of test cases created on one device does not exceed the maximum number. The recommended number is 30. The maximum number can be obtained from the device document.
  • To enable the SLA to support link color change after alarm generation, you need to select only services containing one test case during SLA task creation and ensure that the source device, source port, and destination IP address of the task are consistent with the link parameters in the link management center.

KPIs

None

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Updated: 2019-06-30

Document ID: EDOC1100044378

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