Quality of service

The iSeries™ quality of service (QoS) solution enables 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 receive 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 on the iSeries server can also limit data leaving your server, manage connection requests, and control server load. The QoS server must be running to activate the intrusion detection policy.

It is important to understand QoS before you start configuring policies.

• What's new for V5R4
  
• Printable PDF
  Use this to view and print a PDF of this information.
• Concepts
  If you are new to quality of service (QoS), you can read some basic QoS concepts. This will give you an overview of how QoS works and how QoS functions work together.
• Scenarios
  These quality of service (QoS) policy scenarios can help you understand why and how to use QoS.
• Plan for QoS
  The most important step to accomplishing quality of service (QoS) is planning. To receive expected results, you must review your network equipment and monitor network traffic.
• Configure QoS
  You can use this topic to create differentiated service policies, integrated service policies, and inbound admission policies.
• Manage QoS
  You can use these procedures to manage existing quality of service (QoS) properties and policies.
• Troubleshoot 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. You can view or print any of the PDFs.