Bandwidth operation Technology of Optical Network

The idea of optical network bandwidth operation is to make full use of the existing network resources and construct a bandwidth service network to provide real-time, end-to-end and variable bandwidth services.

The traditional transmission network has many defects, which is based on the narrow-band TDM service. Lack of broadband services, data services support, the availability of multiple types of bandwidth bottlenecks; online bandwidth delivery is slow, providing an end-to-end business needs to point hardware reconfiguration and network management configuration, opening time is longer, Typical foreign equipment to open a 155m~2. The 5G line generally takes approximately more than 10 weeks, and the 2M opening time is several weeks; At present, the transmission network management can not support the user's self-management of the bandwidth, service quality assurance, billing and other functions; At present, optical network bandwidth utilization is very low (only 2 in North America). 3%, China Telecom less than 20%); cannot dynamically allocate bandwidth.

Only effective operating bandwidth can improve efficiency, from the network level and the transaction object of comprehensive consideration, can basically be divided into three categories? bandwidth operations between long-distance backbone operators and local operators, bandwidth operations between local operators and users, bandwidth operations for business-to-business companies that specialize in bandwidth transactions.

Backbone bandwidth operations are mainly in three ways: wavelength for intercontinental interconnection rental, bare fiber rental and leased line, the main line for users to provide a fixed location between the bandwidth connection, including quality of service commitment and protection.

The characteristics of the bandwidth rental: large coverage, basically all of the major cities in the United States can carry out business; The range of bandwidth available is much larger and covers almost 1. 5G to 2. 5M of all bandwidth range, bandwidth selection flexibility, for each access rate, users can choose several types of access bandwidth. As provided by AT&T 2. 5G line, users can start from 270M rental bandwidth, the latter can be flexible according to the need to choose to increase.

The United States has more than 7,000 ISP operators, divided into backbone and local ISP, the same status of the backbone of the ISP interconnection is not charged, and the local ISP connected to the backbone of the ISP to pay fees. Local ISPs are interconnected and typically lease bandwidth.