A fiwi fusion network and a communication method based on the fiwi fusion network

Abstract

The invention discloses a FiWi fusion network and a communication method based on the FiWi fusion network. The FiWi fusion network includes one or more FiWi nodes and a controller, wherein: the FiWi nodes are respectively connected with optical line terminals to form a physical network, And communicate with the controller, including a forwarding module and a physical interface, using the physical interface to communicate; the forwarding module maintains a plurality of virtual interfaces, and the virtual interface has a mapping relationship with the physical interface; the forwarding module is used to communicate based on The flow table selects a virtual interface for the data flow entering the FiWi node, and forwards the data flow through the physical interface mapped by the virtual interface; the controller is used to construct a virtual network view according to the physical network for topology discovery And monitor the flow of the virtual interface and the physical interface to form a global view of the FiWi network, use a routing algorithm to generate a flow table according to the global view of the FiWi network, and send the flow table to the corresponding FiWi node.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a FiWi fusion network and a communication method based on the FiWi fusion network. Background technique [0002] In order to meet the needs of users, a fiber-wireless (FiWi, Fiber-Wireless) converged network emerges as the times require. FiWi network is a networking solution that integrates optical access and wireless access. It combines the advantages of optical fiber access and wireless access. It has strong anti-electromagnetic interference capabilities and can provide sufficient bandwidth and bit error rate. lower advantages. [0003] However, the FiWi network in the prior art mainly combines the optical access and wireless access methods through hybrid networking on the physical layer or the MAC layer. Details, such a FiWi network technology is complex, the equipment is diverse and difficult to unify, and it is difficult to maintain and manage the network when it is us...

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Problems solved by technology

[0003] However, the FiWi network in the prior art mainly combines the optical access and wireless access methods through hybrid networking on the physical layer or the MAC layer. Details, such a FiWi network technology is complicated, the equipment is diverse, it is difficult to unify, and it is difficult to maintain and manage when the network is running

[0004] Moreover, in the FiWi converged network in the prior art, when communicating between network terminals (such as mobile phones, etc.) connected to different FiWi nodes, the data flow needs to enter the core network through the FiWi node, resulting in a heavy load on the core network and affecting the transmission time. Delay, and if the link between the FiWi node and the core network is congested or disconnected, the data flow will not reach the core network, which will lead to communication failure

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