HP-UX IPQoS Configuration Files

Filter Blocks

Filter Blocks

A filter defines a traffic class. A traffic class is the set of all possible packets that match the filter. The filter keyword marks the start of a filter block definition. The string immediately following the filter keyword is the name of the block.

The pseudo-syntax of a filter block is as follows:

filter filtername { filter_attributes

}

In each filter specify one or more attributes (traffic selection criteria), such as source address or destination transport port number, that define the traffic class.An outbound packet matches a filter if and only if it matches all of the attributes specified in the filter. Thus, filter attributes are AND conditions.

IMPORTANT You do not have to specify every possible attribute for a filter. Omitted attributes are considered “don’t cares”. You must however, specify at least one attribute. Filters with no attributes set will cause an error message to be generated.

You can use more than one filter to define a class of traffic that you want to regulate. For example, to regulate all traffic being sent to different hosts that are not consecutively numbered (for example 1.2.3.4 and 1.2.3.6 but not 1.2.3.5), define one filter for each address, then assign both filters to the same policy.

Packets that do match any specified filter are sent out using a default policy. This policy is referred to as the implicit default flow. This policy adheres to: a res (reservation) bandwidth value of 80Kbps; no max (maximum) burst bandwidth value; and no DSCP or VLAN priority marking.

Filter Attributes

Filter blocks can contain any combination of the attributes described in this section, including no attributes, except where otherwise noted. Attributes cannot be specified more than once in a filter.

The following rules apply to filter blocks:

•No default values are used in the syntax below.

•Valid IP addresses must be specified.

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HP UX IPQos Software manual Filter Blocks, Filter Attributes
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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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