Getting Started with HP-UX IPQoS

HP-UX IPQoS Deployment Components

HP-UX IPQoS Deployment Components

The key administrative components used with HP-UX IPQoS are:

•HP-UX IPQoS configuration files

•HP-UX IPQoS ipqosadmin administration tool

The following sections provide overview information about each of these components.

HP-UX IPQoS Configuration Files

HP-UX IPQoS filters and policies are defined in HP-UX IPQoS configuration files as follows:

—Filters define traffic classes (filter blocks).

—Policies determine behaviors to apply to the defined traffic classes (policy blocks).

—Policies are assigned to configured adapters (NICs) (adapter blocks).

HP-UX IPQoS configuration files are created using a text editor such as vi.

There are no HP-UX IPQoS specific restrictions on the configuration file name or location. HP recommends that you use a defined convention to locate and name the files in accordance with your organization’s operational style.

With HP-UX IPQoS you can choose to have policies separate and in distinct configuration files, or you can combine several conditions in fewer filters and fewer policies in one configuration file. Consider the tradeoffs between managing a larger number of simplistic configuration files versus managing fewer configuration files with more complex filters and policies defined.

When you must add an action by expanding filters and policies, you can either create new filters and policies or modify existing ones.

The Role of Filters

To prioritize preferred types of traffic, you must first classify the traffic.

Traffic classes are defined in filters. In each filter, you specify attributes such as the source address or destination transport port number for packets you want the filter to select. A packet matches a filter if and only if it matches every one of the attributes specified for the filter.

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Chapter 3