HP-UX IPQoS A.01.00 Programmer's Guide (October 2005)

Overview
Introduction
Chapter 1 13
HP-UX IPQoS Architecture
Figure 1-1, illustrates a high-level overview of the HP-UX IPQoS architecture.
Figure 1-1 Architectural Overview
As shown in Figure 1-1, HP-UX IPQoS operates in both user space and kernel space.
Also shown in Figure 1-1, HP-UX IPQoS inserts a module between the IP and the DLPI
layers, into the STREAMS plumbed by ifconfig.
HP-UX IPQoS supports as many network adapters (up to 128) as are configured on the
system.