Loop network and business data forwarding method

Abstract

The invention discloses a loop network and business data forwarding method; a root node can respectively send business data to adjacent leaf nodes via loop ports in two forwarding directions, thus realizing two-way transmission of the business data; the leaf node can receive business data from the loop port in any forwarding direction, and forwards the data via the loop port in the other forwarding direction, thus enabling the leaf node to simultaneously have reception and forwarding functions, and further enabling the leaf node to receive two identical business data; the business data received by the loop port that serves as a business data landing source is copied and sent to a user device, thus landing the business data; therefore, unlike an existing method that determines the copy number by the arranged leaf node number, the root node of the method does not need said process, thus greatly reducing the copy number of the root node business data, and effectively reducing the link bandwidth pressure close to the root node.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a ring network and a service data forwarding method. Background technique [0002] As the types of services increase, the complexity of services increases, and the reliability of services increases, which puts forward higher requirements on the network for transmitting services, that is, high bandwidth, low delay, and low jitter. In order to meet the user's requirements for services, the only way to packetize the network for transmitting services is to put the services in the packet network for transmission. [0003] At present, for multicast services, the Ethernet tree (E-tree) model can be used to carry them. The typical features of the E-tree model include: there are two types of nodes in an E-Tree service, namely the root Nodes and leaf nodes, for the root node, the User Network Interface (UNI) interface of the root node can communicate with the UNI interface of the le...

AI Technical Summary

Problems solved by technology

[0003] At present, for multicast services, the Ethernet tree (E-tree) model can be used to carry them. The typical features of the E-tree model include: there are two types of nodes in an E-Tree service, namely the root Nodes and leaf nodes, for the root node, the User Network Interface (UNI) interface of the root node can communicate with the UNI interface of the leaf node, while for the leaf node, the UNI interface of the leaf node can only communicate with the root node UNI interface communication; therefore, when performing multicast business data transmission, the root node needs to determine the number of copies of business data according to the set number of leaf nodes, so as to send the business data to each leaf node and then realize the business data. Landing; in this way, when the root node performs business replication and distribution, as many business landing points as there are, the bandwidth of the business needs to be occupied, which brings great bandwidth pressure to the link close to the root node

Moreover, if the link between the root node and the leaf nodes in the E-tree model fails, the leaf nodes will not be able to receive business data and cannot achieve business landing

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