Method for realizing multicast under ring network architecture, access layer equipment and system
A technology of an access layer device and an implementation method, which is applied in the network field and can solve problems such as interruption of multicast services.
Active Publication Date: 2014-10-08
HUAWEI TECH CO LTD
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[0005] However, in the prior art, when the uplink port link of the access layer device connected to the aggregation layer device fails, and the access layer device is the root bridge, the entire multicast service will be interrupted
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] like figure 1 As shown, it is a schematic diagram of the network structure realized by multicast under a ring network architecture. The ring network architecture includes a first convergence layer device 10, a second convergence layer device 12, and an access layer device connected to the first convergence layer device 10. 100 (first access layer device) and access layer device 106 (second access layer device) connected to the second convergence layer d...
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Embodiments of the present invention provide a multicast implementation method, access layer equipment, and system under a ring network architecture. The ring network architecture includes a first convergence layer device, a second convergence layer device, and a first convergence layer device connected to the first convergence layer device. An access layer device and a second access layer device connected to the second convergence layer device, the first convergence layer device is connected to the second convergence layer device, the first access layer device is connected to the second access layer device, the The method includes: setting the first access layer device and the second access layer device as root bridges; when the link between the first convergence layer device and the first access layer device fails, downgrade the first access layer device Bridge priority, calculate the root port of the first access layer device through the spanning tree protocol, and send the multicast join message through the root port. The invention guarantees that the whole multicast service will not be interrupted.
Description
technical field [0001] The invention relates to the field of network technology, in particular to a multicast implementation method, access layer equipment and system under a ring network architecture. Background technique [0002] In order to ensure the stability of the entire network, a ring network architecture is usually formed between the access layer and the aggregation layer, and the layer-2 packets from the access network are transparently transmitted between the aggregation layer devices, so that broadcast messages are easily broadcast in the ring network A storm will occupy line bandwidth and cause MAC (Media Access Control, Media Access Control) address drift. In order to solve problems such as broadcast storms caused by the ring network, the spanning tree protocol came into being. The basic idea of the spanning tree protocol is to block certain ports through the STP (spanning tree protocol, spanning tree protocol) algorithm, simplify the ring network into a tr...
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IPC IPC(8): H04L12/70H04L12/42H04L12/18
CPCH04L12/1863H04L12/462H04L12/437
Inventor 黄月平莫增宁
Owner HUAWEI TECH CO LTD