Zte Corporation

Xi'an Zhongxing New Software Co., Ltd.

Gaofeng An

Xue Chen

Hongxiang Guo

Xintian Hu

Shaoliang Luo

Lei Zhang

Jie Chen

Yingchun Shang

Fen Yan

Daowei Zhang

Zhiliang Ren

Dongxu Zhang

Provided are a method and device for processing a service crossing the master node, which relate to the communications field, and solve a problem of a resource conflict caused by the service crossing the master node in the OBTN. The method comprises: when assigning a bandwidth for a service requested by each node within the present DBA period, a master node selects a processing strategy; the master node eliminates, according to the selected processing strategy, a resource conflict caused by the service crossing the master node, and assigns a bandwidth to the service requested by each node. The technical solution provided by the present disclosure is applicable to the OBTN, thereby implementing highly reliable OBTN resource scheduling.

Method and device for processing service crossing master node

Provided are a method, a system and a node for implementing APS in an OBRing network. The method comprises: a master node and a slave node separately perform optical power monitoring on respective channels, and aggregate monitoring results to the master node; when determining, according to the monitoring results, that a fault occurs, the master node sends a switching operation instruction to the slave node; and the slave node performs a switching operation and enters a protection working state. With the disclosure, a protection switching mechanism is introduced to the OBRing, which implements the processing on fault and ensures the communication quality of the OBRing.

Method, system and node for implementing automatic protection switching in optical burst-switching ring

The disclosure provides a method for bandwidth assignment of an Optical Burst Ring (OBRing), which includes that: a master node acquires current bandwidth resources, and excludes bandwidth resources occupied by over-the-master-node connections from the current bandwidth resources to obtain bandwidth resources to be assigned; and the master node assigns the bandwidth resources to be assigned to each node according to bandwidth requests of each node in the OBRing. The disclosure also provides a device for bandwidth assignment of an OBRing. According to embodiments of the disclosure, the bandwidth resources occupied by the over-the-master-node connections are excluded before bandwidth assignment is started, so that the problem of receiving conflict caused by an over-the-master-node service data connection is solved.

Method and device for bandwidth assignment of optical burst ring

Disclosed are an optical burst transport network (OBTN) time slot length adjustment method, device and node, the method comprising: during OBTN initialization, measuring the circumference of a data channel, and calculating the OB time slot length according to the measurement result; and during the normal operation of an OBTN, conducting real-time detection on the circumference variation of the OBTN data channel, comparing a variation value with a preset threshold, and correspondingly processing the OB time slot length according to the comparison result. The device is disposed on the node and comprises: a circumference measurement module of the data channel, a time slot length calculation and adjustment module, and a detection module, the circumference measurement module being configured to measure the circumference of the data channel, the time slot length calculation and adjustment module being configured to calculate the OB time slot length according to the circumference measurement result, and correspondingly process the OB time slot length according to the comparison result of the detection module, and the detection module being configured to compare the circumference variation value with the preset threshold.

OBTN time slot length adjustment method, device and node

Embodiments of the present disclosure disclose a dynamic bandwidth scheduling method and device, and a computer storage medium. The method is applied to each node in an Optical Burst Transport ring-Network (OBTN) and includes that: when a target node serves as a master node, for each source node in the OBTN, when a timeslot is allocated for a connection from the source node to a certain destination node, a timeslot occupied by a destination node having the smallest hop count to a destination node configured currently is selected preferentially among timeslots in which there exists an Optical Burst (OB) where there has been no drop operation; and when the target node serves as a master node, a timeslot allocation result is converted into a bandwidth map and the bandwidth map is sent to each slave node in the OBTN.

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Shenzhen, China

Gaofeng An