Much has been written in the last few years about the need to focus less on network technologies and more on network provided services. However, very little has been written about what services should be offered and where those services should reside. For example, should QoS be implemented in the router or in a stand-alone device? Should policy and control be exerted as part of the LAN infrastructure or by the firewall? Leading vendors describe their vision of which services belong where and why.
