Fast cutover method for convergence service channel based on POS optical port

Abstract

The invention provides a fast cutover method for a convergence service channel based on a POS optical port, and the method comprises the steps: carrying out the port and service checking of an SDH system, and determining a service cutover mode that a child node is firstly used, and then a convergence node is used; at a service aggregation node, opening an SDH time slot in a mode of performing optical path butt joint on new equipment and original equipment, and enabling a service landing point to use the original equipment; at the child nodes, removing the original equipment, installing new equipment, and adjusting the service landing point to the new equipment; carrying out time slot punch-through processing between a butt-joint board card and a landing board card of original equipment of the convergence node, and checking normal service operation; judging whether to cut to the last child node or not, and if not, repeating child node cut; and adjusting the landing point at one time at the convergence node, and adjusting the service tail fiber from the original equipment to the new equipment. According to the invention, the interruption duration caused by each level of service is effectively reduced, and the service bearing reliability is improved.

Description

technical field [0001] The invention belongs to the technical field of SDH optical transmission systems, and in particular relates to a fast cutover method for convergence service channels based on POS optical ports. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] SDH (Synchronous Digital Hierarchy, synchronous digital system) is an optical communication technology system used to transmit digital signals. The SDH system operates stably, has good adaptability to optical cable conditions, and has abundant overhead bytes for system operation conditions. Surveillance is currently widely used in power, finance and other fields. [0004] Common SDH system brands include Ericsson, Huawei, FiberHome, ZTE, Alcatel, etc. With the change of equipment manufacturers in recent years, the market share of Ericsson, Alcatel and other equipment in China ha...

AI Technical Summary

Problems solved by technology

[0005] When the service carried by SDH equipment is cut over, it will inevitably lead to service interruption, and the service interruption time will increase exponentially with the increase of the number of service nodes. Long service interruption time is not allowed. In service cutover, the point-to-point leased line service only involves two sites. By wiring in advance, the interruption time of service cutover can be controlled within 1 minute. When the aggregation service of the POS optical port involves a large number of sites, it is impossible to realize the simultaneous construction of all sites. Therefore, it is necessary to cut over each site. The entire aggregation service is interrupted from the cutover of the first site until all nodes are cutover After the recovery is completed, the interruption time caused by business cutover may last for several weeks, which cannot meet the requirements of the power field for business interruption time

[0006] At the converging node where the POS optical port aggregates services, the services from all sub-nodes are aggregated to the same POS optical port, and the optical port reaches the control device through network switches and other equipment. Since the control device has a single port, the converging node does not have the ability to share the load. Business capabilities, and if the aggregation node reconfigures the switch when each sub-node is adjusted, a lot of manpower and material resources will be wasted

[0007] In the sub-nodes where the POS optical port converges services, due to the limitation of the space in the equipment room, it is often not possible to directly assemble new cabinets and install new equipment.

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