In the subway industry, the transmission network is mostly a ring network. According to the length of the subway line, it is generally two or three rings. The MS-OTN solution solves the networking…

In the subway industry, the transmission network is mostly a ring network. According to the length of the subway line, it is generally two or three rings. The MS-OTN solution solves the networking problem of the intersecting ring on the basis of satisfying the tangent ring, to better match the needs of the subway network.