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Automatic allocation and log off method for link addresses in network edge

A link address and network edge technology, applied in the field of optical communication, can solve problems such as no proposed solution, and achieve the effect of complete functions and easy implementation

Inactive Publication Date: 2005-02-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has a big flaw, that is, a large change is made to the LMP
Therefore, the standard organization OIF does not recommend this method, nor does it propose other solutions

Method used

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  • Automatic allocation and log off method for link addresses in network edge
  • Automatic allocation and log off method for link addresses in network edge
  • Automatic allocation and log off method for link addresses in network edge

Examples

Experimental program
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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] In this embodiment, the connection relationship between user equipment and network equipment in the network is as follows: figure 1 As shown, all user network interfaces are not assigned TNA addresses.

[0028] The TNA address allocation process of the whole network is first given below, and the TNA cancellation process of T2 is taken as an example to illustrate the automatic cancellation and distribution process of TNA by using the network edge link address automatic allocation and cancellation method of the present invention. The whole process is as figure 2 shown.

[0029] Assignment process:

[0030] 1) C1 sends a quadruple to N1: M1 (C1, T1, 0, N1); sends two quadruples to N2: M2 (C1, T2, 0, N2), M3 (C1, T3, 0, N2).

[0031] 2) Because N1 is a network device running the standard LMP protocol and does not participate in TNA automatic al...

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Abstract

For the links of participating in the method of automatic allocation and log off, the quadruples containing zeros are sent by the user's device to request instructions of the allocation and log off, and the network device validates the completion. The quadruples are carried by the link overview message in the standard link manage protocol LMP. The function of automatic allocation and logging off addresses is realized between the users' devices and the devices in network edge by the negotiation processes of using standard link manage protocol. The invention keeps the original functions of the protocol without expanding the message set of the standard link manage protocol.

Description

Technical field: [0001] The invention relates to a method for automatically assigning and canceling network edge link addresses, which is suitable for link address assignment and cancellation of user network interfaces in automatic switching transmission networks and automatic switching optical networks, and belongs to the technical field of optical communication. technical background: [0002] Automatically switched transport network (ASTN) and automatically switched optical network (ASON) in order to hide the internal address of the network, there is a special address space at the user network interface: network edge link address (TNA). The TNA is assigned to a link by the network and is unique on the entire network, so that user equipment can use the TNA to request the establishment of a path. [0003] According to the relevant standard document UNI 1.0 Signaling Specification of the standard organization OIF, a link management protocol (LMP) is used for link management b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/911H04Q3/52H04Q11/00
Inventor 王晓冬金耀辉胡卫生姜淳王悦
Owner SHANGHAI JIAO TONG UNIV
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