Typically, customers run IPQoS on servers and server consolidations. Conversely, you can also run IPQoS on desktop systems, depending on the needs of your network.
The following list describes possible systems for an IPQoS configuration:
Oracle Solaris systems that offer various services, such as web servers and database servers
Application servers that offer email, FTP, or other popular network applications
Web cache servers or proxy servers
Network of IPQoS-enabled server farms that are managed by Diffserv-aware load balancers
Firewalls that manage traffic for a single heterogeneous network
IPQoS systems that are part of a virtual local area network (LAN)
You might introduce IPQoS systems into a network topology with already functioning Diffserv-aware routers. If the local router does not implement Diffserv, then the router passes marked packets on to the next hop without evaluating the marks.