Data Buffering Multilevel Model at a Multiservice Traffic Service Node

The basic principles of data buffering at a multiservice traffic service node were reviewed. A multilevel data buffering mode was proposed for nodes that serves a large amount of TCP traffic. Each level of the model has its own characteristics and is relatively independent. However, a malfunction of any one of them may adversely affect the efficiency of other levels. The network interface represents the physical level, which is the lowest. Packet routing occurs at the protocol level. Two queues provide communication between the physical layer (a network interface card) and the IP module. One is called the backlog and is used for incoming packets, while the other is called txqueue and works for outgoing packets. In current networks, the basis for data transmission is the TCP/IP protocol stack. It provides a set of tools to deliver data from one application to another. Optimization of the data buffering multilevel model to ensure a satisfactory quality of service in a multiservice data network was performed in this paper.