Data transfer method and communication nodes

A communication node and node technology, applied in the field of communication, can solve the problems of allocating network bandwidth resources, reducing the utilization rate of network bandwidth resources, and the existence of time slot fragments in OPUCn signals, so as to avoid the existence of time slot fragments and improve the utilization of network bandwidth resources rate effect
CN103533464AActive Publication Date: 2014-01-22HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2014-01-22

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Abstract

The embodiment of the invention provides a data transfer method and communication nodes. The data transfer method comprises the following steps that a first node determines a second time slot corresponding to a first time slot in an optical channel payload unit-Cn (OPUCn) signal, wherein the second time slot is an idle time slot; the first node transfers first low-order optical channel data unit (ODU) service from the first time slot to the second time slot. According to the embodiment of the invention, by transferring the first low-order ODU service of the first time slot into the second idle time slot in the OPUCn signal, time slot fragments can be eliminated, so that the utilization rate of network bandwidth resources can be improved.
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Description

technical field

[0001] The present invention relates to the field of communication, and in particular, to a method of migrating data and a communication node. Background technique

[0002] As the core technology of the next-generation transport network, Optical Transport Network (OTN) has rich capabilities of operation management and maintenance and powerful series connection monitoring, and can realize flexible scheduling and management of large-capacity services.

[0003] OTN technology defines a standard frame structure to map various customer services. First, add the customer service to the Optical Channel Payload Unit (OPU) overhead to form an Optical Channel Payload Unit-k (Optical Channel Payload Unit-k, OPUk), then encapsulate the OPUk, and add the Optical Channel Data Unit (Optical Channel Payload Unit-k, OPUk). Channel Data Unit (ODU) overhead forms Optical Channel Data Unit k (Optical Channel Data Unit-k, ODUk), and then adds Optical Channel Transport Unit (Optic...

Claims

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