simple inventory software

To address this challenge, another set of simple inventory software merged as a second attempt at standardizing QoS. The DiffServ model describes various behaviors to be adopted by each compliant node. The nodes could use whatever features (proprietary or otherwise) were available, as chosen by the vendor, to conform. Packet markings, such as IP Precedence (IPP) and its successor, Differentiated Services Code Points (DSCPs), were defined along with specific per-hop behaviors (PHBs) for key traffic types

As the IntServ and DiffServ models have evolved, the general popularity of one method versus the other has swung back and forth (as shown in Figure 1-2), and their coexistence has become an ever-increasing struggle, with committed advocates on both sides. Today the debates over the advantages of each continue without a clear, industry-wide agreed-upon resolution. The realization has begun that neither method offers a complete solution and that elements of both should be combined to provide the most general method applicable to the widest range of traffic and simple inventory software application types