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System for detecting consistency of node running information of boundary gateway protocol and its method

A border gateway protocol, a technology for operating information, applied in the Internet field, it can solve problems such as conflicting expected policies, inconsistent routing information, and reflection problems, and achieve the effect of ensuring security and wide applicability

Inactive Publication Date: 2007-10-03
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0007] 1. The IBGP session does not form a logical full-mesh interconnection, which leads to the loss of routing information obtained by each BGP node in the domain, resulting in different routes advertised externally, making the external behavior of AS inconsistent, and eventually causing some routes to be unreachable, etc. question;
[0008] 2. The local policy configured by each BGP node conflicts with the expected policy during AS planning, resulting in inconsistent routing information advertised to the outside world.
[0012] However, in the above-mentioned prior art, detection is manually driven, so problems in the AS network cannot be reflected automatically, dynamically and in real time, and errors introduced after configuration changes cannot be checked in time
Moreover, the current operating status of the network cannot be accurately known only from the configuration, so the detection results of this method cannot accurately reflect the actual problems of the network

Method used

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  • System for detecting consistency of node running information of boundary gateway protocol and its method
  • System for detecting consistency of node running information of boundary gateway protocol and its method
  • System for detecting consistency of node running information of boundary gateway protocol and its method

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Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0054] The embodiment of the present invention proposes two models according to whether a BGP node performs consistency judgment.

[0055] The first is the active model, in which the BGP nodes determine whether the actual running information is consistent with the expected running information. In this mode, the BGP node needs to know expected operation information, which mainly includes expected topology information and / or policy information.

[0056] Figure 3 is a schematic diagram of the structure of the active model. Referring to FIG. 3 , the AS domain includes one or more BGP nodes and managers, and each BGP node includes a consistency detection module represented by shadows.

[0057] Among them, the BGP node runs the BGP protocol through the IBGP mode, and transmits the routing in...

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Abstract

A system used for detecting consistence of BGP node operation state to expected operation state comprises one or above BGP node, supervisor for down-sending expected operation information to consistence detection module and consistence detection module for judging whether expected operation information down-sent by supervisor is consistence to actual operation state obtained by BGP node or not.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a system and method for detecting the consistency between operating information of a Border Gateway Protocol (BGP) node in an Autonomous System (AS) and expected operating information. Background technique [0002] Currently, BGP is the core routing protocol of the Internet, and the AS is the processing unit of BGP. Different interior gateway protocols (IGPs) can be used inside the AS, but the consistency of external behavior needs to be maintained. At present, there are more than 20,000 active ASs on the Internet, and all ASs are interconnected through BGP. BGP includes two operating modes: External Border Gateway Protocol (External BGP, EBGP) and Internal Border Gateway Protocol (Internal BGP, IBGP). EBGP is used for interconnection between ASs, and IBGP is used for exchanging routing information within ASs. [0003] According to the regulations of BGP, the IBGP session ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/66
CPCH04L45/02H04L43/0817H04L45/021H04L45/04H04L45/033
Inventor 赵烨
Owner HUAWEI TECH CO LTD
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