This project will show how to test the quality of the fiber optic network of single-mode and multi-mode functions with fault management and performance monitoring network (Y.1731) and lead the result was to analyze the quality of the fiber optic network of single-mode and multi-mode. To find out why, but the current use of single-mode optical fiber. The router Huawei AR 1220E and routers Huawei AR 2200 to test its performance. While setting the Internet Protocol security functions Network Address Translation and Function Access Control List and the Throughput on the CPU by using the speed of data transmission at 1000 Mbps 500 Mbps and 100 Mbps, then. the approach was to analyze the function on the router.