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Address allocation method and device, and message transmission method and device

A technology for allocating addresses and messages, which is applied in the field of communication, and can solve problems such as inability to achieve cross-instance access, inability to obtain cross-instance target terminal instance identifiers, and inability to obtain target terminal mapping relationships

Active Publication Date: 2016-11-09
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the MS cannot obtain the instance identifier corresponding to the cross-instance target ter

Method used

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  • Address allocation method and device, and message transmission method and device
  • Address allocation method and device, and message transmission method and device
  • Address allocation method and device, and message transmission method and device

Examples

Experimental program
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Effect test

no. 4 example

[0106] According to EID 1 Obtain the RLOC of the second router from the preset address pool 2 The fourth instance identifier corresponding to the target terminal;

[0107] According to RLOC 2 And the second message, the third message sent to the second router may include:

[0108] According to RLOC 2 , The fourth instance identifier and the second message, sending the third message to the second router.

[0109] Here, the third message may include message data, the fourth instance ID and EID 1 .

[0110] Specifically, after receiving the second message, the mapping server obtains the EID from the preset address pool 1 , RLOC 2 , The corresponding relationship of the fourth instance identifier, the top-level source IP address of the second message is modified to the IP address of the mapping server, and the third instance identifier carried in the second message is modified to the fourth instance identifier. The second message EID of the source terminal in 2 And the EID of the target t...

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PUM

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Abstract

The embodiment of the invention discloses an address allocation method and device, and a message transmission method and device. The methods and the devices are applied to a map server. The address allocation method comprises the steps of receiving a first message which is sent by a first router and is specific to a target terminal, wherein the first message comprises a first instance identity corresponding to a source terminal, and an address identity EID<1> of the target terminal; judging whether a preset address pool contains a map relationship for the EID<1> or not when a first map relationship corresponding to the first instance identity does not contain the map relationship for the EID<1>; and sending a first response message carrying a second instance identity corresponding to the preset address pool and a third map relationship for the EID<1> to the first router if the first map relationship contains the map relationship, wherein the third map relationship is the map relationship of the EID<1> and the RLOC<1> of the map server. Through application of the embodiment of the methods and the devices, the address information of the cross-instance target terminal can be obtained, and the communication between the cross-instance terminals can be ensured.

Description

Technical field [0001] The present invention relates to the field of communications technology, and in particular to a method and device for allocating addresses and a method and device for message transmission. Background technique [0002] After ETR (Egress Tunnel Router) is connected to the terminal, ETR assigns an IP address to the terminal. The IP address includes two independent address spaces: EID (Endpoint Identifiers) address space and RLOC ( Routing Locator, router address) address space, ETR will periodically send its own iid (instance id, instance identifier) ​​and the EID-to-RLOC mapping relationship of each terminal connected to it to MS (Map Server, mapping server), Among them, one EID address corresponds to one iid, and the MS stores the received EID-to-RLOC mapping relationship with the instance to which the ETR belongs. [0003] When two terminals communicate, the router that is connected to the source terminal needs to go to the MS to obtain the address informat...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L12/741H04L45/74
CPCH04L45/74H04L61/25H04L61/5061
Inventor 郭威王伟
Owner NEW H3C TECH CO LTD