Quality of service

The i5/OS^® quality of service (QoS) solution enables the policies to request network priority and bandwidth for TCP/IP applications throughout the network.

All traffic in your network receives equal priority. Noncritical browser traffic is considered as important as critical business applications. If your chief executive officer (CEO) is giving a presentation using an audio/video application, IP packet priority becomes a concern. It is critical that, during the presentation, this application receives greater performance than other applications.

Packet priority is important to you if you send applications that need predictable and reliable results, such as multimedia. QoS policies can manage packet priority and can also limit data leaving your system, manage connection requests, and control system load. The QoS server must be running to activate the intrusion detection policy.

• What's new for V5R4
  This topic highlights the changes made to this topic collection for V5R4.

• Printable PDF
  Use this to view and print a PDF of this information.

• Concepts
  Before using quality of service (QoS), you need to learn the basic terminology and QoS concepts. These concepts help you determine whether the service meets your needs.

• Scenarios: Quality of service policies
  These quality of service (QoS) policy scenarios can help you understand the reasons and the methods to use QoS.

• Planning for QoS
  The most important step to accomplishing quality of service (QoS) is planning. To receive expected results, review your network equipment and monitor network traffic.

• Configuring QoS
  After you plan for quality of service (QoS), you create your QoS policies using wizards within iSeries™ Navigator. This topic describes how to create differentiated service policies, integrated service policies, and inbound admission policies.

• Managing QoS
  You can use these procedures to manage existing quality of service (QoS) properties and policies.

• Troubleshooting QoS
  Quality of service (QoS) provides several methods to troubleshoot QoS problems.

• Related information for QoS
  Listed here are the IBM^® Redbooks™ (in PDF format), Web sites, and information center topics that relate to the Quality of service (QoS) topic collection. You can view or print any of the PDFs.