A converged routing system and method suitable for combining wide and narrow networks
A routing and network technology, applied in the field of converged routing systems, can solve the problems of difficult to adapt to large-scale ultra-short wave networking, insufficient utilization of wireless broadcast channel characteristics, and low utilization of network resources, so as to reduce network complexity and reduce Routing overhead, the effect of reducing sensitivity
Active Publication Date: 2021-07-23
CHINA ELECTRONICS TECH GRP NO 7 RES INST
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Problems solved by technology
[0006] The present invention overcomes the defects of inconsistency in routing networking protocols for broadband and narrowband channels described in the above prior art, difficulty in adapting to the needs of larger-scale ultrashort wave networking, low utilization of network resources, and insufficient utilization of wireless broadcast channel features. Provide a converged routing method suitable for multi-hop, centerless, autonomous, dynamic topology, wide-narrow combination, multi-hop routing, one-way channel and invulnerability, etc.
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Embodiment 1
[0034] Such as figure 1 As shown, the system includes a neighbor mechanism module, a channel adaptive sending mechanism module, and a logical channel management module at the bottom layer; a topology maintenance module and a path algorithm module at the middle layer; a neighbor table module, a topology table module, and a routing table module at the surface layer.
[0035] Among them, the neighbor mechanism module is used to: determine the periodicity of the channel Hello interval according to the channel adaptive transmission mechanism and generate Hello messages to send to adjacent nodes; receive neighbor handshake messages to build physical channels between neighbors, determine neighbor relationships, and form neighbors Table: If the peer neighbor message is not received within 3 times, it will be judged that the neighbor is lost, the path will be deleted, and the logical channel management and topology maintenance module will be notified; check whether there is any business...
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The invention discloses a fusion routing system and method suitable for wide and narrow combined networks, which are used to solve the problems of inconsistency in routing networking protocols between broadband and narrowband channels, low utilization of network resources, insufficient utilization of wireless broadcast channel features, and difficulty in adapting The need for large-scale ultrashort wave networking. The main idea of the present invention is that the user node selects the sending period of the message according to the channel bandwidth, sends the message and shakes hands with the neighbor to establish an adjacency relationship; the node broadcasts the routing update message based on the logical channel, and when the neighbor receives the message, it is stored in The check value of the node is calculated locally, and the node sends the protocol update check value in the handshake message in the next cycle to check whether it is synchronized. After the route is synchronized, the routing entry is calculated and sent to the forwarding plane. The invention can adapt to the needs of various narrow bandwidth links and relatively large-scale ultrashort wave networking, and improves the utilization rate of network resources.
Description
technical field [0001] The present invention relates to the technical field of routing protocols, and more specifically, relates to a fusion routing system and method suitable for combining wide and narrow networks. Background technique [0002] At present, the routes used on broadband links are mainly OSPF, RIP and other protocols, and the routes used on narrowband channels are mainly OLSR, AODV and other protocols. There is no protocol that can automatically adjust the transmission content according to the route of the transmission channel bandwidth and delay. , transmission frequency and transmission method, it is difficult to achieve the consistency of routing networking protocols for broadband and narrowband channels. [0003] At present, the routing protocol on ultrashort wave generally supports less than or equal to 32 nodes. When the network scale is larger, the cluster head is generally elected in the domain by means of domain division, and then the routing informat...
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IPC IPC(8): H04L12/751H04L12/759H04L1/00H04L45/02H04L45/28
CPCH04L1/004H04L45/02H04L45/028
Inventor 李勇张春生胡波陈正茂王炜发
Owner CHINA ELECTRONICS TECH GRP NO 7 RES INST