Method for data exchange between network elements in networks with differing address ranges

A network unit, data exchange technology, applied in the field of data exchange, can solve problems such as disadvantages

Inactive Publication Date: 2010-01-06
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such ALGs can be set up specifically for the respective protocol and additionally have delay problems due to the required calculation duration when analyzing and converting the payload data
Such an ALG is disadvantageous especially when switching to a newer version ('upgrade') of the adopted communication protocol or adopted application
In this case, most of the upgrades of the communication protocol also disadvantageously require changes to the software running in the ALG

Method used

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  • Method for data exchange between network elements in networks with differing address ranges
  • Method for data exchange between network elements in networks with differing address ranges
  • Method for data exchange between network elements in networks with differing address ranges

Examples

Experimental program
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Embodiment Construction

[0027] figure 1 shows the first network area DMA and the second network area DMB and the network node device GW connecting the two network areas DMA, DMB. In the figures, the network areas DMA, DMB are each symbolized by dotted lines.

[0028] The first network element A is arranged in the first network area DMA and the second network element B is arranged in the second network area DMB. In addition to the described network elements A, B, further (not shown) network elements can be arranged in the respective network areas DMA, DMB if necessary. Furthermore, in addition to the network node device GW, further (not shown) network node devices can also be used for the connection of the network areas A, B, if required.

[0029] The address ADA valid in the first network area DMA is assigned to the first network unit A. The address ADA assigned to the first network unit A is preferably present as an IP address ('Internet Protocol'), but the invention is not restricted to the use ...

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Abstract

The invention relates to a method for data exchange between network elements with a first network element (A), arranged in a first network domain (DMA) with an address (ADA) valid in the first network domain (DMA), a second network element (B), arranged in a second network domain (DMB) with an address (ADB) valid in the first network domain (DMA) and a network gateway (GW), arranged between the network domains (DMA,DMB), for the forwarding of a data packet (DP) for sending, from the first network element (A) to the second network element (B), said data packet (DP) comprising a characterising range (HEAD) and a data range (DATA). In the characterising range (HEAD) of the data packet (DP), a conversion of the target address (ADB), characterising the receiving network element (B), into a target address (ADB') valid in the second network domain (DMB) is carried out under control of the network gateway (GW). The first network element (A) thus enters the source address thereof to be entered in the data range (DATA) of the data packet (DP) as the source address of the first network element (ADA') valid in the second network (DMB)in the data range (DATA).

Description

technical field [0001] The invention relates to a method for data exchange of network elements arranged in different network areas. Background technique [0002] It is known to use network node devices, such as routers or gateways, for supporting data exchange between network elements which are arranged in different local packet-oriented network regions. [0003] Packet-oriented data exchange takes place, for example, using the 'Internet Protocol' (also called IP for short). In the following description reference is made to the Internet protocol, but the invention is not restricted to the use of this protocol, but includes all packet-oriented communication methods in which data packets for data exchange consist of a data part and a representation part (often referred to as 'header' in the literature). In this case, the header usually contains a sender address characterizing the sending network element and a destination address characterizing the network element designated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/08H04L29/06
CPCH04L29/12386H04L61/2521H04L29/12556H04L61/2585H04L69/22H04L29/06H04L9/40
Inventor O·魏茨
Owner SIEMENS AG
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