在线等，高分急求一篇英文摘要！！关于网络拓扑方面

Abstract: topology discovery is an important foundation for network management. Traditional topology discovery is based on SNMP protocol, but it by the authority, such as the deployment and the restrictions. For the network topology found in a study of the key issues of network topology display of the contents of a summary, from the perspective of the agreement into several of the current network topology display technology research methods, each method on the realization of the mechanism discussed at the same time Each method and the use of the lack of final display of the network topology to the development trend of the future topological study of possible applications direction summarized.