With the rapid development of the Internet

especially the rapid growth of home broadband and video services

OTN products are increasingly used in metro transport networks to meet the high bandwidth and large granularity requirements of transmission network bearer services. As the frequent engineering and routine maintenance

single-wave fiber misconnection occurs from time to time

seriously affecting network security. This paper is to solve the problem of single-wave fiber misconnection

through the TTI byte set up and verification in the whole network

and the development of rapid verification tools on a regular inspection

and then developed anengineering specifications of single-wave plate loading. The results can be an effective solution tothe investigation

rectification and prevention of thesingle-wave misconnection in OTN metro transport network.