The MS-OTN, this technology has integrated the technologies of the OTN, TDM, and packet planes, and supports collaboration between Layer 0, Layer 1, and Layer 2.

It is an ideal technology for future-proof transport networks since it meets bandwidth, quality, and cost requirements.

MS-OTN devices are new Huawei OTN equipment that are developed based on NG WDM devices. Different from NG WDM devices, MS-OTN devices support multiprotocol label switching transport profile (MPLS-TP). In other words, only OTN devices that support MPLS-TP and packet switching can be called MS-OTN devices.

The core of MS-OTN is "all in one". MS-OTN mainly has four characteristics:
Multi-service transmission: MS-OTN supports transmission of any service at any rate, such as Huawei SDH, SONET, PDH, ETH, FC, SDI, PON, SAN, and CPRI.

Universal switching: With integration of L0+L1+L2, MS-OTN provides universal service switching and grooming of services at the wavelength, packets, ODUk, and VC levels.

Unified transmission: Various services can be mapped into appropriate channels, and aggregated onto wavelengths for unified transmission.

Centralized maintenance: A centralized network management system visualizes O&M of Layer 0, Layer 1 and Layer 2