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Method for setting up notification function for route selection according to border gateway protocol

A border gateway protocol and routing technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of no support for entering such information

Inactive Publication Date: 2008-08-20
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current routing protocol can only provide routers with information about how to forward packets, but does not provide support for information about which interface the packets should enter from.

Method used

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  • Method for setting up notification function for route selection according to border gateway protocol
  • Method for setting up notification function for route selection according to border gateway protocol
  • Method for setting up notification function for route selection according to border gateway protocol

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The specific implementation steps are as follows:

[0044] Step 1. Deploy the software module of the route selection notification function in the border router, or upgrade the existing border router software so that the BGP protocol in it realizes the addition of the route selection notification function.

[0045] Step 2. When an EBGP session is established between border routers A and B, the capability negotiation process is used to determine whether to support sending routing notification messages in both directions. There are four possible results: A and B send a routing notification message to each other; A sends a routing notification message to B, but B does not send a routing notification message to A; B sends a routing notification message to A, and A does not send a routing notification message to B. A selection notification message; neither A nor B sends a routing notification message.

[0046] Step 2.1. If border router A wants border router B to send a rout...

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PUM

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Abstract

After selecting BGP route sent from neighbor, border gateway sends an informing message for route selection to sender of route. The message includes target address of selected route and address space of local autonomous system. The sender stores information in received message for route selection to information database of route selection in concentration. Thus, inspection standard for packet address needed for method of filtering packets is generated. Route selection clock is added to informing function of route selection. Through route selection clock setup, sender waits for informing message for route selection form downstream autonomous system and gets information from message. Educational examination of simulation software proves that route selection clock decreases overhead of communication and processing overhead of router effectively under condition of not affecting on convergence rate of selecting information.

Description

technical field [0001] The invention belongs to the technical field of computer network routers. Background technique [0002] With the rapid development of the Internet, more and more applications are attracted to the Internet, and the next-generation Internet must be more trustworthy to carry a variety of security-sensitive applications. Internet users' expectations of Internet service providers are also increasing, especially in the financial sector, where consumers are shifting from traditional methods to businesses such as electronic payments and online banking. Various untrustworthy threats from the network, especially malicious attacks, such as distributed denial of service attacks (DDoS), will cause huge losses to network users, so Internet service providers (ISPs) are under great pressure to improve their capabilities to prevent, monitor and mitigate the harm caused by various threats. The need for the Internet to provide trusted services is becoming more and more...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/721
Inventor 吴建平王立军徐恪
Owner TSINGHUA UNIV