Connection admission control (CAC) method and device as well as passive optical network (PON) system
A technology of connection admission control and resource admission control, applied in the field of communication
Active Publication Date: 2014-06-04
HUAWEI TECH CO LTD
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Problems solved by technology
[0009] Embodiments of the present invention provide a connection admission control method, device, and optical line terminal, aiming to solve the problem of connection admission control of different bandwidth channels under the same physical port
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0030] An embodiment of the present invention provides a connection admission control method, such as figure 1 As shown, the method includes:
[0031] Step 101, the optical line terminal receives the multicast on-demand request sent by the optical network unit, and the multicast on-demand request includes the identification of the optical network unit and the information of the program on demand;
[0032] Step 102, the optical line terminal determines the virtual port where the optical network unit is located, or the physical port and subchannel where the optical network unit is located acc...
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Embodiments of the present invention provide a connection admission control method and apparatus, and a passive optical network system, and the method includes: receiving, by an optical line terminal, a multicast on-demand request sent by an optical network unit, where the multicast on-demand request includes an identifier of the optical network unit and information of a program on-demand; determining, according to the identifier of the optical network unit, a virtual port where the optical network unit is located, or a physical port where the optical network unit is located and a sub-channel where the optical network unit is located; judging whether the program is demanded under the virtual port where the optical network unit is located or under the sub-channel of the physical port where the optical network unit is located; and if a judging result is yes, allowing the optical network unit to access. Connection admission control of different bandwidth channels under a same physical port may be implemented through the embodiments of the present invention, which neither exceeds a bandwidth range, nor wastes resources.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a connection admission control method, device and passive optical network system. Background technique [0002] IP TV (IPTV, IP Television) is a service with high bandwidth consumption. In order to ensure the quality of video services under the condition of limited network bandwidth, it is necessary to deploy Resource Management (RM, Resource Management) and Connection Admission Control (CAC, Connection Admission Control) in the network. )Function. In the IPTV service, two services are included: multicast / broadcast video (such as live video, BTV, Broadcast Television) and unicast video (such as video on demand, VOD, Video On Demand). [0003] Multicast CAC is generally completed locally at the access node (AN, Access Node). The AN judges whether the bandwidth of the user link meets the bandwidth requirement of the channel requested to join, or judges whether the number of ...
Claims
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IPC IPC(8): H04Q11/00H04L12/18
CPCH04L12/1881H04L12/1859H04L47/70H04L47/806
Inventor 郑伟江刘建平黄斌吴明晓
Owner HUAWEI TECH CO LTD