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This paper introduces based on 51 MCU Ethernet interface hardware circuit design and software implementation. Describes how to transplanting ZLIP protocol into the C8051F120 micro controller to debug and run, Experimental results show that the Ethernet system operated normally, better real-time data transmission and stability. This design provides a easy and low cost method of network interface design,...
Formal verification of the trusted computing base of a software system is essential for its deployment in mission-critical environments. Commercial off-the-shelf routers are nowadays being used for managing traffic in high-assurance networks. The specifications for the development of these routers are provided by RFCs that are only described informally in English. It is essential to ensure that a...
A fuzzer is a program that attempts to find security vulnerabilities in an application by sending random or semi-random input. Fuzzers have been widely used to find vulnerabilities in protocol implementations. The implementations may conform to the design of the protocol, but most of the times some glitches might remain. As a result vulnerabilities might remain unnoticed. Consequently, different implementations...
Internet is near to one of the most important changes in its existence — the migration of core protocol IP to a new version IPv6. Along with other changes, one of the important results is that the IPv6 network will no longer cares for fragmentation. According recommendations the sending node is responsible to select proper size of packets to send. Present paper proposes one possible way for software...
Component development technology can guarantee system' independence, minimize the system's coupling between software and hardware, enhance the software reusability, and then reduce the software development cost. This paper presents a method to develop a communication interface component which encapsulates an Inspection Plus-plus (I++) command management function with the above features. The component...
oSIP (open SIP) is an open source SIP protocol stack based on RFC-3261. It provides multimedia software developers with powerful APIs to develop SIP multimedia communication software. In this paper, we study on the oSIP framework, operation mechanism and oSIP APIs. In embedded Linux OS and Qt multimedia software developing environment, the oSIP implementation method is shown as an example.
With the growing complexity of software applications, there is an increasing demand for solutions to distribute workload into server pools. Grid Computing provides powerful - but also highly complex - mechanisms to realize such tasks. Also, there is a steadily growing number of downtime-critical applications, requiring redundant servers to ensure service availability in case of component failures...
The composition and characteristics of real-time transport protocol (RTP) for voice is firstly discussed in this paper. According to RTP protocol and its related functions, in the Windows environment it uses WinSock (Windows Sockets) and multimedia library provided by Windows SDK to realize the implementation of RTP/RTCP protocol, and apply Visual C++ to design a real-time voice transmission software,...
This paper introduces the application of the client/server(C/S) mode, the concept and the programming principle of the socket based on C/S. The method of software design for the communication between the client, server-process using the socket mechanism is mainly analyzed, and gives examples of connection-oriented service program. The transmission layer can provide connection oriented to use TCP protocol,...
In order to smoothly transit the IPv4 Internet to IPv6, some related network transiting mechanisms [1] were developed, which basically put emphasize on the co-existence of IPv4 and IPv6 network while transiting. However, the most significant problem preventing common user from trying and adopting IPv6 is that many kind of now-existing software take no support of IPv6, especially those used in some...
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