Getting Started with HP-UX IPQoS
System Operation
State After Reboot
The HP-UX IPQoS state is preserved (unchanged) after planned and unplanned reboots. If previously present, the active configuration is also reloaded and thus is preserved.
Start and Stop Scripts
The start and stop scripts for HP-UX IPQoS are located in /sbin/init.d/ipqos_dne and /sbin/init.d/ipqos. These two scripts are run each time the system boots.
The /sbin/init.d/ipqos_dne script focuses on the HP-UX IPQoS Packet Capturing module that is inserted on the HP-UX networking STREAMS stack between IP and DLPI. The /sbin/init.d/ipqos script focuses on the HP-UX IPQoS Engine module.
Of the two scripts /sbin/init.d/ipqos_dne runs first at boot. It prepares the HP-UX IPQoS Packet Capturing module to be placed on the networking stack once networking is started as part of the boot process. The /sbin/init.d/ipqos script runs after networking is started and it sets up the HP-UX IPQoS Engine module. For a brief description and graphical overview of the architecture of these modules, see “HP-UX IPQoS Architecture” on page 27.
The /sbin/init.d/ipqos_dne and /sbin/init.d/ipqos scripts depend on the value of the IPQOS parameter in the /etc/rc.config.d/ipqos file as follows:
—If IPQOS=1: At next boot, start script runs.
—If IPQOS=0: At next boot, start script (effectively) does not run, since it exits immediately. The stop script runs independently of the value of the IPQOS parameter.
NOTE | For normal operation leave the IPQOS parameter set to the default value (1). |
| If however, you want to completely stop HP-UX IPQoS, perform the following: |
| 1. | Edit /etc/rc.config.d/ipqos, set IPQOS=0. |
| 2. | Reboot the system. |
| If you then want to (re)-start HP-UX IPQoS, perform the following: |
| 1. | Edit /etc/rc.config.d/ipqos, set IPQOS=1. |
| 2. | Reboot the system. |
| | |
Starting HP-UX IPQoS - Without a Reboot
This section describes how to start HP-UX IPQoS without rebooting the system.