Method for sharing resources in automatic switched optical network (ASON) and service node
A resource sharing and service node technology, applied in the field of optical communication, can solve problems such as differences, no label merging, resource sharing technology can not be applied to ASON network, etc., to achieve the effect of enhancing reliability, saving network resources, and improving system performance
Active Publication Date: 2013-08-21
ZTE CORP
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However, the meanings of labels in optical networks are completely different from those in data networks, and there is no concept of label merging in optical networks. Therefore, the current resource sharing technology cannot be applied to ASON networks
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[0033] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
[0034] In order to realize the resource sharing in the ASON network, the method for resource sharing in a kind of ASON provided by the present invention, its core idea is: all connection resources in the service are set on the first service node in the ASON network to allow the connection to be established to be shared and used , and when performing service establishment, recovery or optimization operations, the service head node calculates the connection route according to the shared resource information and the service's own routing strategy, and sends a path message to the service node on the connection route; the service node on the connection route according to The service identifier in the path message allocates the same resources for the connections belonging to the same service, and performs cross-configuratio...
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The invention discloses a method for sharing resources in an automatic switched optical network (ASON), which comprises that: a first service node sets all connected resources in a service are allowed to be shared and used by connection to be established, calculates connection routing according to shared resource information and own routing strategy of the service in service establishment, recovery or optimization operations, and transmits a path message to the service node on the connection routing; and the service node on the connection routing allocates identical resources to the connection in the same service according to a service identifier in the path message, and performs cross configuration according to the allocated resources. The invention also discloses the service node. Due to the adoption of resource sharing in the service establishment, recovery or optimization process, the method and the service node can save network resources, improve system performance, and greatly increase the possibility of successfully establishing, recovering or optimizing the service under the condition of insufficient network resources.
Description
technical field [0001] The invention relates to the field of optical communication, in particular to a resource sharing method and a service node in an Automatic Switched Optical Network (ASON, Automatic Switched Optical Network). Background technique [0002] In a traditional optical network, network resources are exclusively occupied by each service. Even after the introduction of Automatic Switched Optical Network (ASON, Automatic Switched Optical Network) technology, when performing operations such as service establishment, recovery or optimization, the same service The resource exclusive strategy is still adopted between different connections. Since the ASON network is a distributed system, any network element in the ASON network may act as the first node of the service to initiate operations such as service establishment, recovery, or optimization at any time. Therefore, when the operator's network resources are insufficient or multiple When a fault occurs, if a resou...
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IPC IPC(8): H04L12/24H04Q11/00
Inventor 陶慕柳付锡华鲍远林
Owner ZTE CORP