Abstract: The university server cluster task assignment is not balanced, the overall performance is not high, and the real campus network environment is not convenient for the experimental research. Firstly, the working principle of server cluster load balancing technology and network address translation technology are introduced. Then, the experimental case is designed and simulated in the GNS3 simulator, and the detailed experimental design and implementation process are given. Finally, the verification test proves the feasibility of the scheme, overcomes the disadvantage of inconvenient experimental teaching and practice research under the real campus network environment, and deepens the understanding and application of server cluster load balancing technology and network address translation technology.

Key words: server cluster, load balancing, network address translation, experimental simulation