Troubleshooting

General TipsGeneral Tips

The following list provides basic information to be aware of when using the HP-UX IPQoS API:

•To use the HP-UX IPQoS API:

—Programs must include the header file: #include <netinet/ipqos.h>

—Programs must link to the shared library libipqos.sl

—Programmer must have super-user (root) privileges

•For detailed syntax information refer to one or more of the following HP-UX IPQoS manpages: IpqosAPI (3c), IpqosSession (3c), IpqosAdapter (3c), IpqosPolicy (3c), IpqosFilter (3c), IpqosOverlapFilter (3c) and IpqosStats (3c).

•For a list of function return codes and their meaning, refer to Appendix B, “Return Codes,” on page 49. Identify the cause of the error, and fix the problem accordingly.

•If appropriate, you can use ipqosadmin, the user-interface command utility provided with HP-UX IPQoS, to obtain information about the configuration. Refer to the ipqosadmin (1m) manpage for information on how to use ipqosadmin.

•You can continue to use the same general HP-UX networking utilities you typically use to get useful information on the network. There is nothing new or different about using these utilities when running and troubleshooting the HP-UX IPQoS API.

Some of the general networking utilities available include: netstat, ifconfig, syslog, nettl, traceroute, route, ping, and lanadmin. Refer to the respective online manpages for more information on how to use these utilities and how to interpret output from them.

Public domain utilities such as tcpdump and MRTP (multi-router traffic grapher) can also provide helpful information about the network. HP includes the tcpdump utility as part of the HP-UX Internet Express bundle, available on HP Software Depot, at http://www.hp.com/go/softwaredepot.

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Chapter 3