Syntax Rules

HP-UX IPQoS Configuration Files

Filter Blocks

The following rules apply to address and port attributes:

•Specify addresses and ports as singles or ranges.

•Specify IP addresses using the dot-notation for IPv4 and colon-notation for IPv6.

The address family of the first specified IP address determines the address family recognized by the filter. If you specify an IPv4 address the filter matches IPv4 packets. The same applies for IPv6. You cannot specify both IPv4 and IPv6 addresses in one filter. If you want to match an address or range regardless of IP format, duplicate the filter and specify the required address once in IPv4 for one filter and in IPv6 for the other filter. Attach both filters to the same policy.

NOTE	To filter IPv6 traffic, the system must be IPv6-enabled.

•If you specify an address but not a network protocol, then the format of the address is used to set the network protocol.

•You can specify addresses numerically or by host name. Host names are converted using the standard name-to-address lookup functions, and are resolved when the configuration is loaded.

You can specify ports numerically or by the service name. The service name is converted to a number using /etc/services. The range for valid port numbers is 0-255 inclusive.

•If a host name or service name resolves to more than one address or port, the filter is automatically duplicated for each address or port. This is referred to as expansion.

If the original filter name is filterX, the set of expanded filters is named filterX_1, filterX_2 and so on. If filter filterx_1 is also expanded, the set of expanded filters is named filterX_1_1 and filterX_1_2.

For example, if filterX uses both host names and service names, then filterX is expanded once to resolve host names to addresses. All resultant filters are expanded again to resolve service names to port numbers.

•When a port is specified by a service name rather than a number, you can specify the associated transport protocol on the same line. The shortcut syntax is as follows:

port_service_name/transport_protocol_name

For example: dstport http/tcp

Use this shortcut to avoid expanded filters that would otherwise be created. For example, specifying dstport http creates dstport http/udp and dstport http/tcp.

Chapter 4

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.