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Tunneling through access network

A technology for accessing networks and tunnels, applied in network interconnection, data exchange networks, data exchange through path configuration, etc., to achieve the effect of reducing overhead

Inactive Publication Date: 2006-07-26
TELEFON AB LM ERICSSON (PUBL) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

You can use Network Address Port Translation (NetworkAddress Port Translation) to solve this problem, but it is not ideal, because the problem it brings is that the public IP address in the entire network is no longer unique
In addition, it will cause problems on some IP protocols

Method used

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  • Tunneling through access network
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] see figure 2 and 3 , it can be seen that the use of private addresses within the access network is justified. Although this will not affect the internal services of the IP access network itself, the IP access network is not transparent to external customers. Using some sort of network address translation (NAT) at the connection points between the IP access network and the Internet and between the user and the IP access network can overcome this problem.

[0032] For this, in figure 2 used in figure 1 The same reference numerals are used, and the address converter 20 is arranged between the user 12 and the IP access network 10 and between the IP access network 10 and the Internet 14 . In this way, the Internet network address of the IP access network, that is, the network A, can be transformed into the public network address P of the public network P.

[0033] Although this solution works in theory, it is still problematic because many protocols cannot be transmit...

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PUM

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Abstract

In order to enable an access network to use private IP addresses, and so reduce public IP address overheads, data packets are tunnelled through the access network using one of a number of methods including, using layer 2 transmission protocol between a LAC and a LNS and using label switch paths based on MPLS labels.

Description

technical field [0001] The present invention relates to an access network for delivering IP traffic from a telecommunications service provider to business and domestic customers. Background technique [0002] The access network is based on IP (Internet Protocol) and is a convenient way to deliver services such as Video on Demand (Video on Demand), telephone and multimedia to customers. Such services can be delivered transparently. Each network terminal connector (NT) in the access network may have many service points, such as management, voice over IP (VoIP), video services, and Internet access. Individual IP addresses can be allocated for each business point. However, this structure will waste relatively scarce and increasingly scarce IPv4 address resources. [0003] figure 1 An example of an access network 10 connecting customers / users 12 to the Internet 14 via a router 16 is shown. Such an IP access network comprises a number of network terminators 18 each used to ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L12/46H04L12/851
CPCH04L61/2015H04L47/24H04L12/4633H04L61/5014
Inventor W·G·哈迪V·格兰迪
Owner TELEFON AB LM ERICSSON (PUBL)