Flow control strategy processing method and device

A flow control policy and processing method technology, applied in the field of flow control policy processing methods and devices, can solve problems such as failure of FlowSpec flow control policy, failure to support the graceful restart function, attack flow filtering and control interruption, etc., to improve reliability and performance. Stability, avoid unexpected losses, enhance the effect of interaction

Active Publication Date: 2016-07-13
NEW H3C TECH CO LTD
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Problems solved by technology

[0008] In an active / standby environment that supports graceful restart, although BGP has the ability to support graceful restart GR, the protocol or module responsible for processing the FlowSpec traffic control policy does not support the graceful restart function. The control policy fails, which interrupts the filtering and control of attack traffic

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  • Flow control strategy processing method and device
  • Flow control strategy processing method and device
  • Flow control strategy processing method and device

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the present application clearer, the solutions described in the present application will be further described in detail below with reference to 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.

[0045] 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 plur...

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Abstract

The invention provides a flow control strategy processing method and device, and aims at solving the technical problem that attack flow filtering and control by a routing device are interrupted due to failure of a FlowSpec flow control strategy in the smooth restart process of the routing device. The method comprises that a notification message, of entering smooth restart, sent by a BGP is received, and all FlowSpec routes from the BGP are marked with first marks; a newly learnt FlowSpec route sent from the BGP is received, and compared with an original FlowSpec route, if the newly received FlowSpec route is the same with the original FlowSpec route, the first mark of the corresponding FlowSpec route is removed; and a message, of ending smooth restart, from the BGP is received, all FlowSpec routes with the first marks are deleted. According to the invention, filtering and control for attack flow of a forwarding plane are not interrupted in the smooth restart period of the routing device, the stability and reliability of the device are improved, and clients are prevented from unexpected loss caused by DoS/DDoS attack in the main and standby switching period.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a flow control policy processing method and device. Background technique [0002] Denial of service (Denial of service, DoS) and distributed denial of service (Distributed Denial of service, DDoS) attacks (hereinafter collectively referred to as denial of service attacks) have become hackers' usual attack methods because of their characteristics of easy implementation, strong concealment, simplicity and effectiveness, and pose a threat to network security. Serious threats have brought huge economic losses and impacts to enterprises and users. DoS / DDoS attackers control tens of thousands of attacking devices to launch traffic attacks on the same target (user address or server) at the same time, causing the upstream access device of the destination address or the attacked server to be congested with abnormal traffic, and users cannot function normally. use. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/813H04L12/833H04L29/06H04L47/20H04L47/31
CPCH04L47/20H04L47/31H04L63/1408
Inventor 朱超鹏
Owner NEW H3C TECH CO LTD
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