Network centralized control method, system and multi-domain controller

A domain controller and controller technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of large amount of information in the network management interface protocol, few connection establishment, modification, deletion, configuration command errors, etc. Achieve the effect of reducing operation and control messages, improving network resource utilization, and avoiding resource conflicts

CN104883263AActive Publication Date: 2015-09-02CHINA TELECOM CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-09-02

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Abstract

The invention discloses a network centralized control method, a system and a multi-domain controller. The method comprises the steps of calculating the end-to-end connection path according to a link state reported by a single-domain controller and network topology information; and dividing the end-to-end connection path into connection path information inside the domain of the single-domain controller. The method further comprises the step that the single-domain controller finishes the connection establishment inside the domain according to the received connection path information in the domain. The rationality of the connection path can be confirmed before the connection establishment. Conditions that established connection needs to be broken after the path calculation inside a certain domain fails are prevented. Unnecessary operations and control information are reduced. The network stability is further improved.
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Description

technical field

[0001] The invention belongs to the transmission network subfield of the communication field, and in particular relates to a network centralized control method, system and multi-domain controller. Background technique

[0002] In the transmission network of a large operator, due to regional network management (such as backbone network, provincial network, and metropolitan area network) or manufacturer competition, multi-domain networking scenarios inevitably exist. How to implement end-to-end connection control and management in a multi-domain network is a long-term problem faced by operators.

[0003] At present, there are mainly two ways to realize end-to-end connection control in multi-domain networks: unified network management and GMPLS E-NNI distributed protocol. The main characteristics and existing problems of the two ways are analyzed as follows.

[0004] (1) GMPLS E-NNI distributed control

[0005] figure 1 Shown is the flow chart of cross-domain...

Examples

Embodiment Construction

[0048] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0049] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0050] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0051] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authoriz...