Method for transmitting traffic-guiding routing information and cleaning apparatus

A technology for cleaning equipment and routing, applied in the field of communication, can solve problems such as inability to attack traffic defense

Active Publication Date: 2015-07-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application solves the problem that the existing traffic cleaning scheme cannot effectively defend against the attack traffic in the MPLS VPN scenario by providing a method for sending traffic routing information and a cleaning device

Method used

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  • Method for transmitting traffic-guiding routing information and cleaning apparatus
  • Method for transmitting traffic-guiding routing information and cleaning apparatus
  • Method for transmitting traffic-guiding routing information and cleaning apparatus

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0070] This embodiment provides a method for sending traffic diversion routing information, which is applied to a cleaning device in an MPLS VPN network. The MPLS VPN also includes at least two CE routers, and the cleaning device and each CE router have an EBGP neighbor relationship.

[0071] like image 3 As shown, the method includes:

[0072] Step S101: The cleaning device generates drainage routing information, which carries the AS (Autonomous System, autonomous system) number and the IP address of the protected node. The AS number is the first CE router connected to the network segment to which the protected node belongs. AS number;

[0073] Step S102: The cleaning device sends the traffic routing information to the first CE router and the second CE router, so that the first CE router discards the traffic routing information according to the AS number and the EBGP loop prevention mechanism, and makes the second CE router discard the traffic routing information according ...

Embodiment 2

[0135] Based on the same inventive concept, this embodiment provides a cleaning device, which is applied in MPLS VPN (Multi-Protocol Label Switching Virtual Private Network, multi-protocol label switching virtual private network), and MPLS VPN also includes at least two customer edge CE routers , the cleaning device has an external Border Gateway Protocol EBGP neighbor relationship with each CE router. like Figure 5 As shown, the cleaning equipment includes:

[0136] The generating unit 301 is configured to generate traffic routing information, where the routing routing information carries the AS number of the autonomous system and the IP address of the protected node, where the AS number is the AS number of the first CE router connected to the network segment to which the protected node belongs;

[0137] The sending unit 302 is configured to receive the diversion route information from the generation unit 301, and send the diversion route information to the first CE router ...

Embodiment 3

[0150] Based on the same inventive concept, the present embodiment provides a cleaning device, which is applied in MPLS VPN (Multi-Protocol Label Switching Virtual Private Network, multi-protocol label switching virtual private network), MPLS VPN also includes at least two customer edge CE routers, The cleaning device has an external Border Gateway Protocol (EBGP) neighbor relationship with each CE router. like Figure 6 As shown, the cleaning equipment includes:

[0151] Memory 410, for storing program codes;

[0152] The processor 420 is configured to read the program code from the memory to execute: generate drainage routing information, the drainage routing information carries the AS number of the autonomous system and the IP address of the protected node, and the AS number is the network segment connection to which the protected node belongs The AS number of the first CE router;

[0153] The network interface 430 is configured to send the diversion routing information ...

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Abstract

This application discloses a method for transmitting traffic-guiding routing information. The method is applied to a cleaning apparatus in a multi-protocol label switching virtual private network (MPLS VPN) so as to solve the problem of incapability of effectively defending attack traffic in a multi-protocol label switching virtual private network (MPLS VPN) scene existing in an existing traffic cleaning scheme. The method includes the following steps that: the cleaning apparatus generates traffic-guiding routing information, wherein the traffic-guiding routing information carries an autonomous system (AS) number and the IP address of a protected node, wherein the autonomous system (AS) number is an autonomous system (AS) number of a first custom edge (CE) router connected with a network section to which the protected node belongs; and the cleaning apparatus transmits the traffic-guiding routing information to the first custom edge (CE) router and a second custom edge (CE) router, and therefore, the first custom edge (CE) router can be made to discard the traffic-guiding routing information according to the autonomous system (AS) number and an external border gateway protocol (EBGP) loop-prevention mechanism, and the second custom edge (CE) router can be made to save the traffic-guiding routing information according to the autonomous system (AS) number and the external border gateway protocol (EBGP) loop-prevention mechanism. The invention also discloses a cleaning apparatus.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for sending drainage routing information and a cleaning device. Background technique [0002] In the prior art, when there is a protected node in the network, the cleaning device is usually deployed in a bypass mode at the location of the CE (Custom Edge, customer edge) router of the network, by setting the destination IP address to the IP of the protected node The traffic of the address (hereinafter referred to as "protected traffic") is diverted to the cleaning device for cleaning, and then the cleaned traffic is re-injected to the protected node, so as to realize the protection of the protected node. Among them, the "drainage process" and "reinjection process" are crucial links in the entire flow cleaning process. [0003] For example: in figure 1 The shown network includes: router 1 and router 2, router 1 is connected to the Internet (Internetwork, Internet)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L12/801H04L12/46H04L45/50
Inventor 吴皓
Owner HUAWEI TECH CO LTD
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