As a widely used protocol on the current internet

Point-to-Point Protocol(PPP) is very important to the computer's connection with the network and interconnection between routers.In this background

a method is needed to test and guarantee the rightness of the PPP modules in the interconnecting devices.Based on the bridf introduction of PPP

this paper analyzes the test organization

test method and the design of test suite on PPP.It proposes the test structure suitable for the PPP conformance testing.Furthermore

it does the PPP conformance testing on the real router.