Method and apparatus for sending and receiving flow specification rules
A technology for sending streams and specifications, applied in the field of communication, can solve problems such as waste of network resources and computing resources, and occupation of central processing units
Active Publication Date: 2019-06-11
HUAWEI TECH CO LTD
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Problems solved by technology
However, in the methods of the prior art, the sender still needs to send a large number of invalid flow specification rules, and sending a large number of invalid flow specification rules will occupy the network bandwidth and the computing resources of the central processing unit (Central Processing Unit, referred to as CPU), resulting in Waste of network resources and computing resources
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[0101] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0102] figure 1 A flow chart of the method for sending flow specification rules provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method of this embodiment may include the following steps:
[0103] Step 101, the first network device determines that the second network device can send a flow specification rule ORF r...
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Provided in embodiments of the present invention are a method and device for sending and receiving the flow specification rule. A first network device receives a flow specification rule ORF record sent from a second network device after determining that the second network device has the ability of sending the flow specification rule ORF record to the first network device, the flow specification rule ORF record being used for the first network device to filter the flow specification rule to be sent to the second network device. When the flow specification rule is available to be sent to the second network device by the first network device, the first network device filters the flow specification rule to be sent to the second network device according to the flow specification rule ORF record in order to send only the flow specification rule satisfied the flow specification rule ORF record filtering condition to the second network device, thereby solving the problem of resources waste caused by the network device of sending numerous invalid flow specification rules.
Description
technical field [0001] The embodiments of the present invention relate to communication technology, and in particular to a method and device for sending and receiving a flow specification rule (FlowSpecification rule). Background technique [0002] The Border Gateway Protocol (BGP)-based protocol is widely used in the Internet to transfer routing information between autonomous domains (Autonomous Systems, AS for short) and between edge routers in the AS. The transmitted routing information includes: Network Layer Reachability Information (NLRI) information such as Internet Protocol (IP for short) routing, Media Access Control (MAC for short) routing and flow specification rules. Among them, the flow specification rules are mainly used for network security defense, and the attack or suspected attack flow information and response strategies (speed limit, dyeing, redirection, etc.) Handle attack traffic as early as possible. [0003] For a router, there may be a large number ...
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IPC IPC(8): H04L12/701
Inventor 梁乾灯尤建洁郝卫国
Owner HUAWEI TECH CO LTD