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A flow control policy processing method and device

A technology of flow control strategy and processing method, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve the problems of slow convergence and low processing efficiency, and achieve the goal of reducing system resource occupation, high performance, and reducing traversal operations. Effect

Active Publication Date: 2019-11-08
NEW H3C TECH CO LTD
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Problems solved by technology

[0009] In view of this, the present application provides a flow control policy processing method and device to solve the problem of slow convergence when the cycle timer is enabled to check the validity of the FlowSpec flow control policy in the prior art, and to solve the problem that every BGP unicast Routing changes require re-checking the validity of all FlowSpec flow control policies whose control policy is traffic redirection, resulting in low processing efficiency

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  • A flow control policy processing method and device
  • A flow control policy processing method and device
  • A flow control policy processing method and device

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[0042] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0043] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The present application provides a flow control policy processing method and device. The method is as follows: a BGP module of a network device receives a FlowSpec flow control policy sent by an EBGP neighbor, and sends a redirection next hop address carried by the flow control policy to an iterative module , the iteration module sends a notification of the iteration result change to the BGP module when the reachability of the next hop address changes or when the best matching route of the next hop address changes, and the BGP module notifies the next hop according to the change of the iteration result. The hop address is checked for validity again, and the traffic control policy is processed according to the result of the validity check. The above method borrows the existing route iteration function to quickly check the redirected next-hop address of the FlowSpec flow control policy, reduces the traversal operation of a large number of unnecessary flow control policies when the route changes, and alleviates the inconvenience for network devices. Necessary system resource usage.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a flow control policy processing method and device. Background technique [0002] In the Request for Comments Protocol (English: request for comments, RFC) document of the Internet Engineering Task Force (The Internet Engineering Task Force, IETF), Flow Specification (hereinafter referred to as FlowSpec) is defined as an Internet protocol (InternetProtocol, IP ) traffic is an n-tuple consisting of several matching rules (for example: source address, destination address, port, source port, destination port, protocol type, etc.). The traffic control strategy deployed through FlowSpec can accurately match the attack traffic, and at the same time, there are multiple options for attack traffic: discarding, rate limiting, traffic redirection, etc., which is the defense against denial of service (DoS) and distributed denial of service (Distributed Denial of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/741H04L29/06H04L45/74
CPCH04L41/0823H04L45/74H04L63/1408
Inventor 朱超鹏
Owner NEW H3C TECH CO LTD
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