Method and device for verifying consistency of router data forwarding behaviors based on action codes
A technology of action coding and verification method, which is applied in the field of consistency verification of router data forwarding behavior based on action coding, which can solve problems such as network failure, network security and hidden dangers, and achieve network security maintenance, efficiency improvement, efficiency improvement and query efficiency Effect
Active Publication Date: 2015-09-09
TSINGHUA UNIV
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Problems solved by technology
[0003] However, in the data forwarding behavior of the router, if the data forwarding behavior of the router is inconsistent, it may cause problems such as network failure or network security risks.
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[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0019] The method and device for verifying the consistency of router data forwarding behavior based on action coding according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0020] figure 1 It is a flowchart of a method for verifying consistency of router data forwarding behavior based on action coding according to an embodiment of the present invention. like figure 1 As shown, the method for verifying the consistency of router data forwarding behavior based on...
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The invention discloses a method and a device for verifying consistency of router data forwarding behaviors based on action codes. The method comprises the following steps of determining associative functions of a plurality of function modules of a router; configuring the corresponding action codes for a plurality of function modules of the router, wherein the corresponding distributed action codes are sent to a control layer after each function module executes the corresponding function; configuring the corresponding condition codes for a plurality of function modules of the router; combining some or all of function modules according to a combination manner; constructing a Trie tree, wherein nodes of the Trie tree store the action codes of the function module; and detecting whether a data packet has an abnormal behavior in a forwarding process according to the Trie tree and the received data packet. According to the method, the abnormal behavior is detected by utilizing an action sequence of the function module and a generated condition sequence, so that a network administrator can discover the abnormal behavior quickly and effectively, and detect the network state timely.
Description
technical field [0001] The invention relates to the technical field of routers, in particular to a method and device for verifying consistency of router data forwarding behavior based on action coding. Background technique [0002] In router data forwarding behaviors, some behaviors belong to normal actions, while some behaviors belong to abnormal actions. For example, there is often a probability of packet loss during the forwarding process. Some packet loss actions in the packet loss behavior are normal behaviors. For example, packet loss behavior caused by network congestion is a normal congestion control behavior. Some packet loss actions are due to The processing of packets by the router is discarding, which is also a normal behavior; there are still some data packets in the packet loss behavior that should have been forwarded, but the router discards them due to various reasons. This kind of packet loss behavior is abnormal. Packet drop action. [0003] However, in t...
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IPC IPC(8): H04L12/24H04L12/26
CPCH04L43/0817H04L41/0869H04L41/06H04L43/0829
Inventor 徐恪陈艳毓沈蒙江勇马东超
Owner TSINGHUA UNIV