HP-UX IPQoS Configuration File Examples

Example 1: Premium Services Class Web Server

policy videoservice_p1 { uses videoselect

res 45% max 100% dscp 10

}

policy other_v4_p { uses other_v4 res 1M

}

adapter lan0 {

uses premwebservice_p1, videoservice_p1, other_v4_p

}

#

#This file can be replicated on all premium services servers.

####

In this example, the res and max attributes are specified as percentages rather than absolutes, to facilitate replicating this configuration file on several servers. The dscp attribute is not relevant to the example, but is included for illustrative purposes.

This example defines three classes of traffic. The Web service traffic class is for Web service traffic only, so only srcport is assigned to http/tcp. This does not include Web browsers, because any http traffic they initiate has the dstport set. This traffic class is assured 45% of the adapters’ bandwidth. If it needs that much bandwidth it will get it, subject to the caveat: it is “promised” (reserved) but not completely “guaranteed”. If it needs more than 45%, it is allowed to send up to 100% of the adapter’s bandwidth, assuming there is available bandwidth not being used by the res rate of any other policy.

The second policy is for video service traffic. The use of videosrv in filter videoselect is only allowed if videosrv can be found in /etc/services and converted to a port number. This class of traffic is assured 45% of the adapter’s bandwidth and is also allowed to send up to 100% of the bandwidth.

This example also provides a policy for all other IPv4 traffic. This policy assures all other IPv4 traffic at least 1Mbps of the adapter’s bandwidth. If this policy had not been specified, the implicit default policy applied would have assured 80Kbps.

If all three traffic classes have more traffic than their reserved rates, they can send faster. The three share the excess bandwidth roughly equally.

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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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