Method for optimizing RRPP (rapid ring protection protocol) single ring network data transmitting path and ring network node

Abstract

The invention discloses a method for optimizing an RRPP single ring network data transmitting path, wherein the method comprises the steps: configuring a main domain in an RRPP single ring network, wherein a primary case and a secondary case are disposed in the main domain, primary and secondary ports of a main node are configured oppositely in the primary and secondary cases, the protective VLAN(virtual local area network) of the secondary case only comprises an RRPP port the node of which is directly connected to the RRPP single ring network, and other configurations are the same; collecting the network state information of other nodes in the RRPP single ring network by the main node, and calculating the path cost of the main node for reaching various transmission nodes in the ring network in the two cases according to the collected network state information, and generating a ring network topology table; and transmitting the data to be transmitted between the main node and other transmission nodes via the case with relatively small path cost according to the topology table. The invention further discloses a ring network node. The transmitting path of the data in the ring network can be optimized by the method and the ring network node, and the bandwidth of the RRPP single ring network is saved.

Description

technical field [0001] The invention relates to the technical field of ring networks, in particular to a ring network data sending path optimization method and ring network nodes. Background technique [0002] At present, the ring network, such as the ring network using Rapid Ring Protection Protocol (RRPP, Rapid Ring Protection Protocol), because of its low construction cost and high reliability, can meet the requirements of monitoring camera input and encoder distribution in a video surveillance system. , The distance is long and scattered, so it is widely used in the video surveillance system network. [0003] In the RRPP ring network, the RRPP domain (RRPP Domain) is used to identify the topology range calculated and controlled by the RRPP protocol. An RRPP domain is identified by an ID represented by an integer. [0004] A group of connected ring network node devices configured with the same domain ID, control VLAN and protection VLAN constitutes an RRPP domain. Mult...

AI Technical Summary

Problems solved by technology

[0021] exist figure 1 In the ring network shown, the three-layer forwarding protocol such as ARP is generally used for packet forwarding, and because the secondary port of the master node in the RRPP ring connected to the RRPP ring is blocked (BLOCK), that is, data cannot be sent through the secondary port. In the entire RRPP ring, data is forwarded in one direction, and a better path cannot be selected for data forwarding according to the network topology.

When the client P1 connected to the main node S1 wants to play back the video data stream captured by the encoder S6, because the secondary port of the network node S1 is blocked (BLOCK), the data stream sent by the encoder S6 to the client P1 needs to go through S5, The paths of S4, S3, S2, and S1 reach client P1, but cannot follow the optimal paths of S7, S8, and S1, resulting in waste of RRPP single-ring network bandwidth.

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