HP UX IPQos Software manual Introduction to HP-UX IPQoS Background Information

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Overview

Introduction

Introduction

This section briefly describes HP-UX IPQoS and its architecture. It also provides an introduction to the HP-UX IPQoS API, including a structural and functional overview.

Introduction to HP-UX IPQoS (Background Information)

HP-UX IPQoS provides, for outgoing traffic on HP-UX hosts, traffic conditioning (transmission prioritization for specified traffic classes) as well as DSCP (Differentiated Services Code Point) marking and VLAN-priority marking. An HP-UX IPQoS configuration can be loaded into the kernel either by using ipqosadmin to load a valid configuration file, or through user-applications that utilize the HP-UX IPQoS API included with the product.

An HP-UX IPQoS configuration contains user-supplied definitions of traffic classes (filters) and traffic-handling instructions (policies) that are assigned to configured adapters.

Note the following general properties about filters, policies and adapters:

•The purpose of a filter is to identify a certain class of traffic (based on characteristics such as transport port number, destination IP address, etc.) on a network interface.

•The purpose of a policy is to define what action to perform on a class of traffic (such as reserving bandwidth, DiffServ Code Point (DSCP) marking, VLAN priority marking, etc.).

•Adapters represent LAN devices on the system on which HP-UX IPQoS policies can be enforced.

•A filter can be attached to multiple policies, but can only be attached to one policy per adapter.

•A filter is meaningful only when it is associated with a policy. Likewise, a policy is only meaningful when it is associated with an adapter and has one or more filters associated with it.

•An adapter may or may not have policies attached to it. For adapters that do not have any associated policies, no HP-UX IPQoS controls are performed on their traffic.

For general (non-API specific) information on HP-UX IPQoS refer to the HP-UX IPQoS A.01.00 Administrator’s Guide, which can be found online at:

http://www.docs.hp.com/en/netcom.html#IPQoS

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Contents HP-UX IPQoS A.01.00 Programmer’s Guide Manufacturing Part Number OctoberWarranty Government LicenseCopyright Notice Trademark NoticesContents Return Codes Intended Audience New and Changed Documentation in This EditionWhat Is in This Document Publishing HistoryTypographic Conventions Related Documents HP-UX Release Name and Release IdentifierBold HP Product Documentation Related RFCsManpages Relevant RFCs RFCs DescriptionHP Welcomes Your Comments Overview Introduction Introduction to HP-UX IPQoS Background InformationHP-UX IPQoS Architecture Architectural OverviewIntroducing the HP-UX IPQoS API Introduction Structural Overview How to Use the HP-UX IPQoS API HP-UX IPQoS API OverviewProgrammatic Requirements HP-UX IPQoS API Overview Manpages Return Codes Restoring Configurations to the Kernel after Reboot Sample ProgramUsing the HP-UX IPQoS API Using Sessions Starting a SessionSession Types Terminating a Session Object StatusUsing Sessions Using Objects Creating, Copying and Destroying ObjectsObject Attributes Using Lists ListsAttaching Objects to Lists Traversing ListsRestrictions Code Example Traversing An Adapter List Do something with the policy list hereDeleting Policies and Filters Detaching From a List Filter Objects Filter OverlapAttributes Associated with Filter Objects Object Type AttributesFilter Objects Policy Objects Attributes Associated with Policy ObjectsAdapter Objects Attributes Associated with Adapter ObjectsStatistics Counters Kept for StatisticsObject Type Counters Troubleshooting General Tips Reporting Problems to HP Reporting Problems to HP Chapter Function Calls Session-Related Function Calls Table A-1 Session-Related Functions DescriptionAdapter-Related Function Calls Table A-2 Adapter-Related Functions DescriptionPolicy-Related Function Calls Table A-3 Policy-Related Functions DescriptionSet Vlan priority Filter-Related Function Calls Table A-4 Filter-Related Functions DescriptionGet priority of filter Filter Overlap-Related Function Calls Table A-5 Filter Overlap-Related Functions DescriptionFilter1 overlaps that Filter2Statistics-Related Function Calls Table A-6 Statistics-Related Functions DescriptionReturn Codes Return Codes, Mnemonics and Message Strings Table B-1 Return Codes with Mnemonics and Message StringsObject name is not set Return Codes, Mnemonics and Message Strings Appendix B Code Example Configuration Code Example Exit Else Return MainIpqosvaluemoderelative Configuration Code Example Appendix C Index Index Index
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UX IPQos Software specifications

HP-UX IPQoS is a sophisticated software solution designed to enhance the network performance of HP's Unix-based operating system, HP-UX. This software focuses on Quality of Service (QoS) mechanisms that ensure efficient bandwidth utilization and prioritize network traffic to meet the demands of various applications.

One of the main features of HP-UX IPQoS is its ability to define traffic priorities. Administrators can classify traffic into different priority levels, allowing critical applications to receive the bandwidth they need while less important traffic can be deprioritized. This feature is essential in environments where bandwidth is a limited resource, ensuring that business-critical processes maintain their performance even during peak usage times.

The software employs advanced traffic shaping techniques that allow the management of data flow in the network. By controlling the rate of traffic and smoothing out bursts, IPQoS helps prevent network congestion, leading to a consistently reliable user experience. In addition, it can manage both inbound and outbound traffic, ensuring optimal performance in various network scenarios.

Another significant characteristic of HP-UX IPQoS is its integration with other network management tools. It operates seamlessly with HP’s Network Management Suite, providing a holistic view of network performance. This integration facilitates easier troubleshooting and monitoring, as administrators can correlate data from different sources for comprehensive insights.

Moreover, HP-UX IPQoS supports various protocols, including DiffServ and MPLS. By adhering to these standards, it positions itself as a versatile tool that can operate in diverse network environments, providing flexibility and ease of deployment. Additionally, the software supports policy-based management, enabling organizations to implement specific rules tailored to their network requirements.

Security is also a critical focus of HP-UX IPQoS. The software provides mechanisms to enforce traffic policies while safeguarding against potential threats. By ensuring that only authorized traffic flows through the network, it minimizes the risk of attacks and data breaches, contributing to a more secure IT environment.

The user interface of HP-UX IPQoS is designed for ease of use, allowing network administrators to configure settings, monitor performance, and generate reports without extensive training. This user-friendliness accelerates the deployment process and enhances the overall management of network resources.

In summary, HP-UX IPQoS is a robust and versatile network management solution that brings substantial benefits to organizations looking to optimize their network performance. With its traffic prioritization features, integration capabilities, support for industry standards, and focus on security, it stands out as an essential tool for maintaining effective and secure network operations in a dynamically changing IT landscape.
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