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Method, system and device for sending mapping information

A technology for mapping information and sending methods, which is applied in the field of sending methods, systems and devices for mapping information, can solve the problem of high pressure of searching for mapping services, and achieve the effect of avoiding the pressure of mapping and searching

Inactive Publication Date: 2009-09-16
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Embodiments of the present invention provide a method, system and device for sending mapping information, so as to solve the problem in the prior art that the ITR searches for the ETR information corresponding to the destination host, resulting in heavy pressure on ITR to search for mapping services

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  • Method, system and device for sending mapping information
  • Method, system and device for sending mapping information

Examples

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Embodiment Construction

[0022] The embodiment of the present invention provides a method for sending mapping information, based on a host searching for BR information corresponding to a destination host, and carrying the found BR information in a data message, thereby sharing the pressure of ITR searching for mapping services.

[0023] image 3 It is a flowchart of a method for sending mapping information according to an embodiment of the present invention, such as image 3 As shown, the method for sending mapping information in the embodiment of the present invention specifically includes:

[0024] 301. Search for a mapping server, and obtain information about a tunnel egress router ETR used when a data packet initiated by a host is forwarded in a transmission network. Wherein, the data packet may be an IP data packet or an Ethernet data packet, and the embodiment of the present invention uses the IP data packet as an example for description. like Figure 4 As shown, before the host initiates a c...

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Abstract

The embodiment of the invention discloses a method, a system and a device for sending mapping information. The method for sending the mapping information comprises the following steps of searching a mapping server, obtaining the tunnel outlet router ETR information used when the data message sent by a mainframe is retransmitted in a transmission network; carrying the ETR information in the data message and sending the data message to the tunnel inlet router ITR. In the embodiment of the invention, the tunnel inlet router ITR needs not to query the RLOC information or AS No information, thus avoiding huge mapping query pressure formed on the ITR and problems of reducing of forwarding performance, missing of packets and the like caused by over-load of ITR, and reducing the risk of DDOS attack.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular, to a method, system and device for sending mapping information. Background technique [0002] In today's IP (Internet Protocol, Internet Protocol) communication technology, the IP address plays a dual role. From the perspective of network routing, the IP address has the functions of addressing and routing. The IP address identifies the location of the IP device / node in the network. The network routing protocol sends the IP packet to the designated destination according to the IP address. From the perspective of the host identity, the IP address represents the identity of the communication node; the host hopes that the identity will not be lost when the communication node is switched, and it can be consistently confirmed as the same host by the network. The continuity requirement of the host identity and the aggregability of IP addresses are d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06
CPCH04L63/1458H04L45/04H04L12/4633H04L12/6418H04L45/42H04L2212/0025H04L2212/00
Inventor 徐小虎李国平刘恩慧蒋胜
Owner HUAWEI TECH CO LTD
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