Network flow regulation method and system

Abstract

The invention relates to a network flow regulation method and a network flow regulation system. The method comprises the following steps: transmitting an interior gateway protocol (IGP) data packet to a network node in a network and receiving response of the network node on the IGP data packet, and acquiring network topology information of a router; performing periodic polling on each router in the network through a simple network management protocol (SNMP), and determining link utilization information; analyzing routing information transmitted from an external network to the network according to a border gateway protocol (BGP) update message, and determining BGP routing information; collecting network flow information, determining data flow information of a border router according to the related information of the network flow information, wherein the data flow information of the border router comprises flow information and flow direction information, classifying the flow information, and forming a flow matrix; receiving a user scheduling policy input by a user and a BGP scheduling policy determined and optimized according to the information; and transmitting traction routing to a specific router in the network according to the optimized BGP scheduling policy.

Description

technical field [0001] The present invention relates to the field of computer networks, and more specifically, to a method and system for adjusting network traffic. Background technique [0002] Currently, in Internet networks, routing selection has an important impact on network performance. With the increase of the types of Internet applications and the growth of the number of users, network congestion has attracted more and more attention, and has become a bottleneck restricting the development and application of the Internet. Network congestion is a positive feedback phenomenon caused by network link failure or serious overload of line equipment. The root cause is that the load provided by users to the network is greater than the capacity and processing capacity of network resources, resulting in increased packet delay and the number of discarded packets. Increase, performance degradation of the upper layer application system and other issues. [0003] In order to avoi...

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Problems solved by technology

[0006] The real-time performance of information collection is poor: due to the manual calculation of traffic, manual generation of routing policies, and manual application of routing policies in steps (1)-(5), it often takes tens of minutes to several hours. When the routing policy takes effect, the traffic model has changed, resulting in large errors

[0007] Routing policies are not uniform: Different managers use different traffic adjustment mechanisms (community, AS_PATH, prefix_list, etc. are used for routing matching, and LocalPreference, weight, etc. are used for policy adjustment). There is no uniform standard. After the network has been running for a long time , which will lead to different routing strategies for different BGP peers. No one can understand the role of each strategy and how to configure it, which brings great difficulties to BGP strategy management; it is difficult to specify how user traffic traverses the carrier network: Adjusting the BGP policy can only adjust the border router from which the traffic is sent out of the network, but cannot comprehensively consider how the traffic traverses within the carrier network. Therefore, after adjusting the BGP policy, the bandwidth utilization of the network egress device can often be optimized, but it may be Unbalanced bandwidth load within the operator's network; easy to cause network failures: The above methods of traffic adjustment are often carried out by observing while adjusting, so it is easy to cause various network failures during the adjustment process

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