Multipath by-pass shunt forwarding method and system based on programmable router
A forwarding method and forwarding system technology, applied in the field of computer networks, can solve the problems of increasing the processing overhead of core routers, routing oscillations, wasting CPU time slices, etc., so as to reduce processing data overhead, reduce forwarding pressure, and avoid routing oscillations. Effect
Inactive Publication Date: 2010-12-22
韩来权 +1
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Problems solved by technology
However, the setting of variance lacks flexibility, and reconfiguring parameters is very processor-intensive
[0004] The existing technology is that a router performs both routing decision and data forwarding, which makes it impossible for the router to perform classification and statistical operations on data packets
Although some routers integrate some high-end processing functions, the statistics and analysis operations of a large number of data packets waste too much time slice of the CPU and occupy a lot of time slices of the forwarding plane, making the forwarding workload of the router more and more heavy. thus increasing the processing overhead of the entire core router
In addition, the traditional next-hop forwarding interface is only determined by the destination address DA, which cannot form different types of forwarding granularity, which affects the forwarding performance of the routing system
In this case, large-scale data forwarding can easily cause routing oscillation, which greatly reduces the stability of the entire routing system
Method used
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Embodiment Construction
[0048] Embodiments of the present invention: a programmable router-based multi-path bypass shunting and forwarding method, including:
[0049] The S1 core router sends the received data packets to the bypass processor by using mirror copy technology;
[0050] The S2 bypass processor makes statistics on the characteristic parameters of different data streams;
[0051] The S3 bypass processor classifies the data according to the statistical results to obtain the forwarding granularity, and feeds the forwarding granularity back to the core router;
[0052] The S4 core router divides and forwards the data according to the forwarding granularity fed back by the bypass processor.
[0053] The bypass processor is a programmable router.
[0054] The method for the bypass processor to perform statistics on the characteristic parameters of different data streams in the step S2 includes:
[0055] S10 initializes the characteristic parameters of the data stream and conf...
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The invention discloses a multipath by-pass shunt forwarding method and system based on a programmable router. The method comprises the following steps: an S1 core router utilizes the mirror image copying technology to send the received data packet to a by-pass processor; an S2 by-pass processor counts the characteristic parameters of different data flows; an S3 by-pass processor classifies data, obtains forward granularities according to the statistical result and feeds the forward granularities back to the core router; and an S4 core router shunts and forwards data according to the forward granularities fed back by the by-pass processor. The method of the invention adopts the mirror image copying technology to send the data received by the core router to the by-pass processors for treatment, thus reducing the enormous forwarding pressure of the core router and avoiding route oscillation caused by large-scale data forwarding; and the characteristic parameters of data flows are added in the statistical method of the invention to form the forward granularities of different categories, thus increasing the data-forwarding performance of the routing system.
Description
technical field [0001] The invention relates to a multi-path bypass shunting and forwarding method and system, in particular to a programmable router-based multi-path bypass shunting and forwarding method and system, belonging to the technical field of computer networks. Background technique [0002] With the rapid development of communication network technology in recent years, the number of routers and links in the network continues to increase, resulting in the expansion of the network structure and functions, which makes the multipath problem more and more prominent. The problem of low transmission efficiency and poor service quality of the traditional single-object routing method is becoming more and more obvious in the continuously developing multi-object environment. Multi-path concurrent transmission technology has become one of the key technologies recognized to improve network service quality common concern of the world. [0003] The OSPF protocol (Open Shortest ...
Claims
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Login to View More IPC IPC(8): H04L12/56H04L29/06H04L45/28
Inventor 韩来权汪晋宽
Owner 韩来权