Considerable routing system and its forwarding table generation method
A large-capacity, forwarding table technology, applied in the multiplexing system selection device, transmission system, digital transmission system and other directions, can solve the problems of poor scalability and limited cascading line cards, and achieve a simple expansion method, Expansion is flexible and effective
Active Publication Date: 2011-03-02
ZTE CORP
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figure 2 Although the structure shown can expand the switching capacity to a certain extent, the cascaded line cards in the switching frame are also limited, and the number of resource frames that can be connected to it is also limited. The scalability is not strong, and there is a traffic bottleneck.
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] image 3 It is a schematic structural diagram of a large-capacity routing system according to an embodiment of the present invention, such as image 3 As shown, the large-capacity routing system in this embodiment is formed by cascading multiple switching frames, wherein, frame 1 is a central switching frame, and the remaining switching frames are non-central switching frames, and a plurality of switching stages are arranged in the central switching frame A line card or cascaded line card is used as the access interface of the non-central switching frame. The central switching frame is used for routing switching control and management of the non-central switching frame, and the non-central switching frame provides routing access interfaces for users. The structures of the central switching subracks and non-central switching subracks are roughly the same, inc...
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The present invention discloses a high capacity routing system which relates to routing technique for solving small capacity problem in present routing system. A proposed technology solution is that: including switching frame used for routing switch control and providing routing access interface, and resource frame used for providing routing access interface, switch frame is set with switch single board, single stage link card or switch stage link card used for managing and controlling routing; resource frame is set with switch network card which has characteristics in that various switch frames are interconnected by stage link card or switch stage link card, resource frame connects switch frame through switch network card and stage link card or linage between switch stage link cards, switch frame manages routing of resource frame. The invention also discloses a forwarding table generating method of high capacity routing system. The routing system can extend according with capacity need, and has simple technique and practical.
Description
technical field [0001] The invention relates to the routing technology of a communication system, in particular to a large-capacity routing system and a method for generating a forwarding table. Background technique [0002] With the in-depth development of social informatization, the Internet, as an information infrastructure, is developing at an unprecedented speed. The ability to develop and develop the routing system as an important Internet device has become an important symbol of a country's informatization capabilities. [0003] In the routing technology, the switching structure is the core technology of the routing system, which directly determines the main performance of the entire system. Before introducing the switching mode, the routing system mostly adopts the distributed processing technology of the shared bus. The realization of the shared bus is relatively simple, but due to the unavoidable internal conflicts, the design of the high-speed bus is limited and...
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IPC IPC(8): H04L12/56H04Q11/00H04L45/74
Inventor 张亚男
Owner ZTE CORP