Data leased line is a data transmission service that uses optical fiber, digital microwave, and open circuits, and uses a digital transmission channel to transmit digital signals. It can provide point-to-point and point-to-multipoint transparent transmission of data leased circuits for users to transmit data, images, Information such as voice provides circuit transmission services with a variety of rates from 2Mbps to 2.5Gbps, and is generally used in intra-enterprise intranet networking.
Data lines can be divided into local data lines, long-distance lines, and international long-distance lines according to geographical areas.
According to the line type, there are DDN, Frame Relay (FR), ATM, SDH, MSTP, Ethernet dedicated line, MPLS-VPN, etc.
Product definition: SDH Ethernet dedicated line is to provide customers with 2Mbps-1Gbps intermediate rate point-to-point data dedicated line service through the Ethernet interface of SDH network in units of 2Mbps. The difference with the SDH private line service is that the SDH Ethernet private line can provide intermediate rates, while the SDH private line service can only provide basic rates such as 2Mbps, 155Mbps, and 2.5Gbps.