Method and device for limiting multicast range in RPR
A flexible packet ring and range technology, applied in the field of network communication, can solve the problems that the range of multicast frames cannot be flexibly changed, cannot receive multicast services, and cannot be implemented in space, and achieves flexible and reliable multicast. business effect
Inactive Publication Date: 2011-07-06
HUAWEI TECH CO LTD
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Therefore, when the group members or the network topology change, the scope of the multicast frame cannot be changed flexibly and adaptively, so that the set multicast scope is different from the actual multicast requirements, resulting in the inability to achieve effective multiplexing in the space. There may even be multicast errors, such as users who apply for multicast services cannot receive multicast services, or users whose multicast services have been terminated by the network side can still receive multicast services, etc.
[0018] Therefore, there is currently no technical solution that can guarantee flexible and reliable implementation of multicast services on RPR
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[0077] The core idea of the present invention is to calculate the corresponding multicast range through a dynamic learning method in an elastic packet ring with a space-aware sublayer or other elastic packet rings that need to limit the multicast range, and then, the corresponding multicast report The text can be transmitted according to the learned multicast range, or the learned multicast range and the multicast range configured according to the management layer. In this way, each station on the ring can The range-limited multicast can be performed more flexibly and effectively, and the problems existing in the prior art can be effectively overcome.
[0078] The method for limiting the multicast range in the RPR with a spatial awareness sublayer or other RPRs that need to limit the multicast range according to the present invention will be described in detail below with reference to the accompanying drawings.
[0079] Specifically, the present invention can dynamically lim...
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The invention relates to method and device for limiting multicast extent in elastic grouping loop. The method in invention includes: the site on elastic grouping loop RPR receives the grouping register information from other sites; on present site, determine and record the information to limit multicast extent according to grouping register information. The device in invention includes: receivingunit of group register information set on the site of RPR. Thereinto the receiving units of group register information, which is used to receive the group registering information from other sites; deciding unit for multicast extent, which is used to decide and record the information to limit multicast extent according to received group register information. The technical schedule provided by the invention can be seen that using the invention can realize to limit the extent when the member or loop network topology are changed.
Description
technical field [0001] The invention relates to the technical field of network communication, in particular to an implementation scheme for limiting the range of multicast in RPR with a space awareness sublayer. Background technique [0002] With the rapid expansion of data services, for major telecom operators, the data processing capability of the metro transport network has become the focus of everyone's attention. At present, SDH (Synchronous Digital Hierarchy), ATM (Asynchronous Transfer Mode) and Ethernet technologies that are applied on a large scale in the metropolitan area network have some limitations. In order to solve this problem, a new MAC for optimizing IP data packet transmission (Media Access Control) layer protocol RPR (Resilient Packet Ring) appears. [0003] RPR technology integrates the intellectualization of IP, the economy of Ethernet, and the high bandwidth efficiency and reliability of optical fiber ring network, and provides a good networking solut...
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IPC IPC(8): H04L12/56
CPCH04L12/66
Inventor 王翟素平
Owner HUAWEI TECH CO LTD