CN100438467C - Method and system for expanding xDSL transmission band-width - Google Patents
Method and system for expanding xDSL transmission band-width Download PDFInfo
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- CN100438467C CN100438467C CNB2005100072477A CN200510007247A CN100438467C CN 100438467 C CN100438467 C CN 100438467C CN B2005100072477 A CNB2005100072477 A CN B2005100072477A CN 200510007247 A CN200510007247 A CN 200510007247A CN 100438467 C CN100438467 C CN 100438467C
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- ethernet
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Abstract
The present invention relates to a method and a system for expanding xDSL transmission bandwidth. The method mainly comprises the steps: transmission bandwidth merge application is implemented on a plurality of single xDSL lines with smaller transmission bandwidth by using a link concourse device, namely that the link concourse device is adopted to implement the binding transmission of the xDSL lines. Thereby, the loaded bandwidth of an upper service layer can achieve or approach the merged bandwidth of a transmission line. The upper layer service means MAC layer bandwidth. The method and the system realize high speed ethernet link transmission based on the low speed xDSL lines. Thereby, the effective expansion of the xDSL transmission bandwidth is realized. That is to say, the method and the system can use a telephone line with low cost to conveniently realize high speed service transmission and widen the use range and the prospect of the telephone line.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of method and system of expanding xDSL transmission band-width.
Background technology
Current use xDSL (X Digital Subscriber Line) transmission ethernet mac (medium access control) frame is very general, as ADSL (ADSL (Asymmetric Digital Subscriber Line)), ADSL 2+, VDSL (Very-high-speed Digital Subscriber Line) and SHDSL (symmetrical high bitrate digital subscriber line), particularly the ADSL technology is widely used in family online.
Because xDSL transmission adopts ordinary telephone line as transmission medium, ordinary telephone line is very cheap, and telephone line network distributed very extensive, so the xDSL transmission is a kind of very convenient and lower-cost transmission access technology.
It is lower that but the popular feature of these xDSL technology is exactly a transmission bandwidth, has only 700Kbps as the up maximum transmission bandwidth of ADSL, the transmission of the business of the big bandwidth of can't satisfying the demand.
In order to improve transmission bandwidth, relatively Chang Yong method is with the parallel use of many xDSL circuits.Promptly simply many xDSL transmission lines are put together, as shown in Figure 1.Every the xDSL transmission line transmits different upper-layer service.That is to say that a business can only be transmitted on an xDSL transmission line, this bandwidth to upper-layer service has proposed higher requirement, if it is 10Mbps that upper-layer service requires transmission bandwidth, at this moment, if every xDSL transmission line bandwidth has only 8Mbps, can't support this upper-layer service.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the method and system that the purpose of this invention is to provide a kind of expanding xDSL transmission band-width, realize that a business can transmit simultaneously on the xDSL of many low bandwidth circuit, thereby improve the service bandwidth that to support based on xDSL.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of method of expanding xDSL transmission band-width, comprising:
When user side need utilize the Fast Ethernet transmission line to receive the xDSL business:
Separately mac frame at least two xDSL transmission lines is converged, revert to the service link data, and deliver to the Fast Ethernet transmission line, user side receives described business by the Fast Ethernet transmission line;
When user side need utilize Fast Ethernet transmission line transmission xDSL professional:
The mac frame of user side by the service link on Fast Ethernet transmission line transmission be assigned on each bar xDSL transmission line transmit.
The present invention also provides a kind of system of expanding xDSL transmission band-width, comprising:
The Fast Ethernet transmission line, link aggregation equipment and at least two xDSL transmission lines, one end of described link aggregation equipment provides high-speed Ethernet port to be used for being connected with the Fast Ethernet transmission line, the other end provides at least two low speed ethernet ports to be respectively applied for at least two xDSL transmission lines to be connected, described link aggregation equipment is used for described at least two xDSL transmission lines are converged on the described Fast Ethernet transmission line and transmits, or the business on the described Fast Ethernet transmission line is assigned to respectively on described two xDSL transmission lines at least transmits.
Described link aggregation equipment can separate connection be arranged in the network, and the functional module that also can be used as the network equipment is built in the corresponding network device.
Described system also comprises: transmitting terminal in the xDSL network and receiving terminal, be respectively arranged with connect and Fast Ethernet transmission line and at least two xDSL transmission lines between link aggregation equipment.
The low speed ethernet port of described link aggregation equipment is by in modulator-demodulator and the Digital Subscriber Line Access Multiplexer access network.
The low speed ethernet port of the link aggregation equipment of described transmission or receiving terminal can also pass through the Layer 2 switch access network.
The present invention also provides a kind of business transmitting method of system of expanding xDSL transmission band-width, comprising:
Set up at least two low speed ethernet links between two users' end of business transmission, two users' end is carried on two corresponding xDSL transmission lines with internetwork low speed ethernet link at least;
At the transmitting terminal of business, the mac frame that high-speed Ethernet port is imported is respectively allocated to each bar low speed ethernet link, and carries out professional transmission by each low speed ethernet link between two ends;
At the receiving terminal of business, each bar low speed ethernet link converged to the Fast Ethernet link after, send to receiving terminal.
As seen from the above technical solution provided by the invention, method and system of the present invention realized based on low speed xDSL circuit transmitting high speed ethernet link, thereby realized effective expansion of xDSL transmission bandwidth.That is to say that realization of the present invention makes and can utilize the extremely low telephone line of cost to realize the business transmission of high speed comparatively easily, has widened the scope of application and the prospect of telephone wire.
Description of drawings
Fig. 1 is the networking structure schematic diagram of xDSL transmission in the prior art;
Fig. 2 is the structural representation of system of the present invention;
Fig. 3 is the specific implementation structural representation of system of the present invention.
Embodiment
The objective of the invention is to utilize many less wall scroll xDSL circuits of transmission bandwidth to merge transmission bandwidths, thereby make the bandwidth of upper-layer service layer of carrying to reach or near the merging bandwidth of transmission line, described upper-layer service is meant the MAC layer bandwidth.
The present invention if realize near-end and far-end Fast Ethernet link between high-speed transfer, then between two ends, need to transmit by many xDSL line bundles.
Core of the present invention is to adopt the link aggregation technology to realize many xDSL line bundle transmission.Promptly adopt link aggregation equipment to carry out the binding transmission of many xDSL circuits.
Described link aggregation equipment is and follows the realization of IEEE802.3 standard based on Ethernet Link-Aggregation (link aggregation) technology of comparative maturity realization at present.And described link aggregation equipment is specifically as follows the link aggregation functional module that is built in other equipment, also can be the independent equipment that is provided with.
Method of the present invention specifically comprises:
When user side need utilize the Fast Ethernet transmission line to receive the xDSL business, then will converge by the mac frame that many xDSL transmission lines transmit the xDSL that comes by network side, revert to the service link data, and be sent on the Fast Ethernet transmission line, and receive the business that the xDSL transmission comes by the Fast Ethernet transmission line by user side;
When user side need utilize Fast Ethernet transmission line transport service, then professional mac frame waiting for transmission is assigned on many xDSL transmission lines, and in network, transmits;
The invention enables ustomer premises access equipment can utilize the Fast Ethernet transmission line to carry out the transmitting-receiving of business datum, the corresponding business data are then transmitted for sharing in many xDSL transmission lines in real network, thereby have reduced the realization cost of user side realization high speed business transfer of data.
Method of the present invention makes ustomer premises access equipment can utilize cheap telephone line to realize the business transmission of high speed, thereby makes traditional telephone network that better network service can be provided with lower cost.
The structure of system of the present invention as shown in Figure 2, comprise the xDSL transmission line, Fast Ethernet transmission line and link aggregation equipment, wherein, described low speed ethernet link is connected in the low speed ethernet port of two link aggregation equipment shown in the fine line among Fig. 2, wherein, realize the xDSL transmission between modulator-demodulator and the DSLAM, described Fast Ethernet link is connected with the high-speed Ethernet port of link aggregation equipment shown in the solid arrow line among Fig. 2; Subscriber terminal equipment can pass through described Fast Ethernet transmission line, link aggregation equipment and xDSL transmission line and insert black phone simulation access network, obtains network insertion service at a high speed.That is to say, in the present invention, for user terminal, realized the Fast Ethernet access, but actual what adopt at network side is to utilize xDSL transmission line bearer service.
Therefore, realization of the present invention makes Virtual network operator that network insertion service at a high speed can be provided by cheap telephone line, provides more facility thereby enjoy network insertion service at a high speed for accessing user terminal to network.
The specific implementation of system of the present invention as shown in Figure 3, on near-end and far-end Fast Ethernet link, a Link-Aggregation functional module is set respectively, be link aggregation equipment, one end of described link aggregation equipment provides high-speed Ethernet port, be used to connect the Fast Ethernet transmission line, the other end provides the low speed ethernet port, is used to connect many xDSL circuits at far-end low speed ethernet port.
Many xDSL link testers are crossed link aggregation equipment and are converged on the Fast Ethernet transmission line and transmit, and simultaneously, the business on the Fast Ethernet transmission line can also exchange to respectively on many xDSL circuits by link aggregation equipment to be transmitted.
Two Link-Aggregation (link aggregation) functional module that lays respectively at near-end and far-end has been set up a Link-Aggregation group separately, and every group of low speed ethernet port by physical rate full duplex such as n formed.Described trunking is a plurality of member ports to be condensed together form 1 and converge group, and to realize output/input rationally the sharing in each member port of loading, the while also provides higher connection reliability;
In the system of the present invention, the Ethernet high-speed link is transferred to near-end from far-end with business, and promptly far-end is as the transmitting terminal of business, near-end during as the receiving terminal of business corresponding processing procedure as follows:
(1) in far-end Link-Aggregation functional module, i.e. Ye Wu transmitting terminal, when the Fast Ethernet link of high-speed Ethernet port carrying inserts, set up n Ethernet low speed chain circuit between 2n the low speed ethernet port of far-end Link-Aggregation group and near-end Link-Aggregation group;
(2) far-end Link-Aggregation functional module is assigned to the mac frame of high-speed Ethernet port input the low speed ethernet link of n low speed ethernet port of Link-Aggregation group;
(3) far-end Link-Aggregation functional module is sent to n xDSL Modem by the low speed ethernet link with the ethernet mac frame;
(4) n DSLAM (Digital Subscriber Line Access Multiplexer) that xDSL Modem is transparent to the ethernet mac frame by telephone wire, and be transferred to Layer 2 switch;
Described DSLAM has two kinds of working methods:
A kind of working method is that n bar low speed ethernet link is focused at together, and high-speed Ethernet port is provided, and is directly connected to Layer 2 switch (ethernet mac switching equipment);
Another kind of working method is that DSLAM is sent to bridging device Bridge with data, and Bridge provides high-speed Ethernet port by bridging device, and n bar low speed ethernet link is focused at together, is directly connected to Layer 2 switch (ethernet mac switching equipment);
(5) Layer 2 switch exchanges to n low speed ethernet port respectively with the n bar low speed ethernet link of high-speed Ethernet port, be connected to near-end link aggregation equipment by the low speed ethernet port, i.e. Ye Wu receiving terminal, on link aggregation equipment, recover the Fast Ethernet link of far-end by the high-speed Ethernet port carrying, soon n bar low speed ethernet link converges on the Fast Ethernet link and transmits, and realizes that the Ethernet high-speed link is by distal-to-proximal professional transmission process.
The Ethernet high-speed link is transferred to far-end from near-end processing procedure is opposite to process (5) with said process (1), is the inverse process of process (1) to (5).
Among the present invention, described n Ethernet low speed chain circuit needs directly to link to each other with link aggregation equipment, promptly can not use Hub (hub) that n Ethernet low speed chain circuit merged between two Link-aggregation functional modules.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1, a kind of method of expanding xDSL transmission band-width is characterized in that, comprising:
When user side need utilize the Fast Ethernet transmission line to receive the xDSL business:
Separately mac frame at least two xDSL transmission lines is converged, revert to the service link data, and deliver to the Fast Ethernet transmission line, user side receives described business by the Fast Ethernet transmission line;
When user side need utilize Fast Ethernet transmission line transmission xDSL professional:
The mac frame of user side by the service link on Fast Ethernet transmission line transmission be assigned on each bar xDSL transmission line transmit.
2, a kind of system of expanding xDSL transmission band-width, it is characterized in that, comprise: the Fast Ethernet transmission line, link aggregation equipment and at least two xDSL transmission lines, one end of described link aggregation equipment provides high-speed Ethernet port to be used for being connected with the Fast Ethernet transmission line, the other end provides at least two low speed ethernet ports to be respectively applied for at least two xDSL transmission lines to be connected, described link aggregation equipment is used for described at least two xDSL transmission lines are converged on the described Fast Ethernet transmission line and transmits, or the business on the described Fast Ethernet transmission line is assigned to respectively on described two xDSL transmission lines at least transmits.
3, the system of expanding xDSL transmission band-width according to claim 2 is characterized in that, described link aggregation equipment can separate connection be arranged in the network, and the functional module that also can be used as the network equipment is built in the corresponding network device.
4, the system of expanding xDSL transmission band-width according to claim 2 is characterized in that, described system also comprises:
Transmitting terminal in the xDSL network and receiving terminal, be respectively arranged with connect and Fast Ethernet transmission line and at least two xDSL transmission lines between link aggregation equipment, one end of described link aggregation equipment provides high-speed Ethernet port to be used for being connected with the Fast Ethernet transmission line, and the other end provides at least two low speed ethernet ports to be respectively applied for at least two xDSL transmission lines to be connected.
5, the system of expanding xDSL transmission band-width according to claim 4 is characterized in that, the low speed ethernet port of described link aggregation equipment is by in modulator-demodulator and the Digital Subscriber Line Access Multiplexer access network.
6, the system of expanding xDSL transmission band-width according to claim 5 is characterized in that, the low speed ethernet port of the link aggregation equipment of described transmission or receiving terminal can also pass through the Layer 2 switch access network.
7, a kind of business transmitting method of system of expanding xDSL transmission band-width is characterized in that, comprising:
Set up at least two low speed ethernet links between the transmitting terminal of business transmission and receiving terminal, described transmitting terminal and receiving terminal are carried on two corresponding xDSL transmission lines with internetwork low speed ethernet link at least;
At the transmitting terminal of business, the mac frame that high-speed Ethernet port is imported is respectively allocated to each bar low speed ethernet link, and carries out professional transmission by each low speed ethernet link between described transmitting terminal and receiving terminal;
At the receiving terminal of business, each bar low speed ethernet link converged to the Fast Ethernet link after, send to receiving terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100072477A CN100438467C (en) | 2005-02-06 | 2005-02-06 | Method and system for expanding xDSL transmission band-width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100072477A CN100438467C (en) | 2005-02-06 | 2005-02-06 | Method and system for expanding xDSL transmission band-width |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1815986A CN1815986A (en) | 2006-08-09 |
| CN100438467C true CN100438467C (en) | 2008-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100072477A Expired - Fee Related CN100438467C (en) | 2005-02-06 | 2005-02-06 | Method and system for expanding xDSL transmission band-width |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874341B (en) * | 2005-05-30 | 2010-08-18 | 华为技术有限公司 | Implementation method for binding service transmission line |
| CN101686140B (en) * | 2008-09-22 | 2012-09-05 | 华为技术有限公司 | Method, system and device for multicasting digital subscriber lines |
| CN108306783A (en) * | 2017-12-26 | 2018-07-20 | 深圳市泰信通信息技术有限公司 | Retransmission method, device based on SDN and computer readable storage medium |
| CN115314450B (en) * | 2022-08-03 | 2024-07-16 | 昆高新芯微电子(江苏)有限公司 | Method for realizing adaptation of low-rate port to high-rate port in straight-through forwarding mode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5999563A (en) * | 1996-05-09 | 1999-12-07 | Texas Instruments Incorporated | Rate negotiation for variable-rate digital subscriber line signaling |
| CN1272940A (en) * | 1997-09-22 | 2000-11-08 | 西加特技术有限公司 | Overlaid MR structure with mangetostatic stabilized soft adjacent layer |
| KR20040026754A (en) * | 2002-09-26 | 2004-04-01 | 한국전자통신연구원 | A Home Gateway System including xDSL and VoIP interfaces |
| EP1435754A1 (en) * | 2002-12-31 | 2004-07-07 | Ezlinx Technology Incorporation | Converter/bridge and method of operation between Ethernet and ATM interfaces |
-
2005
- 2005-02-06 CN CNB2005100072477A patent/CN100438467C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5999563A (en) * | 1996-05-09 | 1999-12-07 | Texas Instruments Incorporated | Rate negotiation for variable-rate digital subscriber line signaling |
| CN1272940A (en) * | 1997-09-22 | 2000-11-08 | 西加特技术有限公司 | Overlaid MR structure with mangetostatic stabilized soft adjacent layer |
| KR20040026754A (en) * | 2002-09-26 | 2004-04-01 | 한국전자통신연구원 | A Home Gateway System including xDSL and VoIP interfaces |
| EP1435754A1 (en) * | 2002-12-31 | 2004-07-07 | Ezlinx Technology Incorporation | Converter/bridge and method of operation between Ethernet and ATM interfaces |
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| CN1815986A (en) | 2006-08-09 |
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