Message forwarding method and packet optical transmission network equipment
A technology of optical transmission network and network equipment, which is applied in the field of packet forwarding method and packet optical transmission network equipment, can solve the problems of high forwarding pressure of core routers, achieve the effects of reducing forwarding pressure, saving port resources, and reducing the number of forwarding hops
Active Publication Date: 2016-07-06
CHINA UNITED NETWORK COMM GRP CO LTD
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[0005] Embodiments of the present invention provide a message forwarding method and packet optical transmission network equipment to solve the defect of high forwarding pressure of existing core routers
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[0022] The embodiment of the present invention can add a message address identification function to each optical transmission network device in the IPoverWDM network and configure message forwarding tables of different address types to have a grouping function. In the embodiment of the present invention, the optical transmission network equipment with packet identification function and packet function is called packet optical transmission network equipment (P-ONT). In order to save costs and make full use of the packet address identification and grouping functions of optical transmission network equipment, it is also possible to add the packet address identification function and configure packet forwarding tables of different address types only for key optical transmission network equipment. Therefore, the packet optical transmission network equipment provided by the embodiment of the present invention can not only process physical layer addresses, but also can process layer 2 ...
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The invention provides a message forwarding method and a grouped optical transmission network device. The method includes the steps of recognizing the address type and a destination address of a message after the optical transmission network device receives the message, determining the address of a next hop network device which forwards the message through the optical transmission network device according to the destination address of the message and message forwarding tables which correspond to the address types of the message, and forwarding the message to the next hop network device through the optical transmission network device according to the address of the next hop network device, wherein the address is of a type from a physical layer to a network layer, the message forwarding tables which correspond to the different address types are configured in the optical transmission network device. According to the message forwarding method and the grouped optical transmission network device, terminal resources of a core router are saved, forwarding pressure of the core router is reduced, and the number of forwarding hops of the message is reduced.
Description
technical field [0001] The embodiment of the present invention relates to communication technology, in particular to a message forwarding method and packet optical transmission network equipment. Background technique [0002] At present, in the IP (Internet Protocol over Wavelength Division Multiplexing, IPoverWDM) network based on wavelength division multiplexing, the basic bearer network is an overlapping network composed of "IP" layer equipment and "optical" layer equipment. The label switching (Multi-ProtocolLabelSwitching, MPLS) bearer network is used as the customer domain, the optical transport network is used as the service domain, and the interaction and service requests are carried out through the router port of the IP layer and the user network interface (User-to-NetworkInterface, UNI) of the optical layer. . The IP layer and the optical layer are not aware of each other, and the control information at the IP layer does not flow into the optical layer. The optica...
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IPC IPC(8): H04L12/721H04J14/02
Inventor 唐雄燕赵怀罡王健全张沛师严钟秀芳
Owner CHINA UNITED NETWORK COMM GRP CO LTD