CN1983889B - Method and system for transmitting network service - Google Patents
Method and system for transmitting network service Download PDFInfo
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- CN1983889B CN1983889B CN200510120885XA CN200510120885A CN1983889B CN 1983889 B CN1983889 B CN 1983889B CN 200510120885X A CN200510120885X A CN 200510120885XA CN 200510120885 A CN200510120885 A CN 200510120885A CN 1983889 B CN1983889 B CN 1983889B
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Abstract
The invention is concerned with the network operation transmission method, including the following steps: 1) configures at least two physical links of the two network equipment as conglomerating link and uses the transmission operation of the conglomerating link; 2) changes the conglomerate link operation from working single board to the protecting single board when the working single board of the network equipment fault, in order that using the protecting single board to replace the working single board process operation. The invention is also concerned with the corresponding network operation transmission equipment. The invention is not only improve the link capacity and protecting capability between equipments, an provide the protection at equipment grade.
Description
Technical field
The present invention relates to data communication field, more particularly, relate to a kind of Network transmission method and system.
Background technology
The link aggregation technology also claims backbone technology (Trunking) or binding technology (Bonding), its essence is the data path that many physical links of two equipment rooms is combined into a logic, i.e. aggregated links, thus realize fiber optic protection and port dilatation.As shown in Figure 1, the physical link between switch 11 and the switch 12 13,14 and 15 is formed an aggregated links.This aggregated links logically is an integral body, and the details of inner composition and transmission data is transparent to top service.In IEEE 802.3ad standard, link aggregation technology and related realization mode have been carried out clear and definite definition.At present, can realize the link aggregation between the different port in the veneer, and the link aggregation between the port between different veneer.
Each bar physical link of aggregated links inside is finished data transmit-receive task and backup mutually jointly.As long as also there is the member of energy operate as normal, whole transmission link just can not lose efficacy.For example in Fig. 1, if physical link 13 and physical link 14 faults successively, the data task on it can be transferred to rapidly on the physical link 15, thereby two switches 11 and 12 s' data traffic transmission can not interrupted.
Can the achieve a butt joint protection of equipment room ethernet link of link aggregation; be that the port of certain member in the veneer aggregation group or link are when breaking down; other members can provide protection professional on this link, thereby can prevent under the disconnected fine situation interruption of communication.In addition, link aggregation also can increase link capacity, it arrives several Port BindingBundlings together, each port can be worked simultaneously, and realize the equilibrium of flow, thereby can realize the capacity extensions (, can obtain the link of a 300M bandwidth) of equipment room link as 3 100M ethernet ports are aggregated to together.
TPS (Tributary Unit Protect Switch, the tributary unit protection is switched) is a kind of protection Switch mode of device level, promptly when protected plate breaks down, can use baffle to substitute protected plate work, thereby business is protected.TPS protection can be realized by the mode of interface board or optical splitter, can be realized 1 by interface board: the protection of N, by the mode of optical splitter, can only realize protection in 1: 1.
In the MAN process of construction, MSTP (the Multi-Service Transport Platform that comes by traditional SDH/SONET/WDM equipment development, multiservice transport platform) equipment, bearing more and more important role, it is responsible for access network to transmission professional between the backbone network with converge, and is bearing the transmission of a large amount of important service.This just requires to provide perfect protection scheme between MSTP equipment and access network or the backbone network, comprise: the protection of equipment room service link is provided, ethernet line/fiber break of promptly working as equipment room, when perhaps port breaks down, need redundant link protection, the assurance business is not interrupted; The protection of the single-plate grade of equipment is provided, and promptly when the service access veneer on the equipment broke down, the service processing board that needs backup was protected.
At above customer demand, industry has following two kinds of solutions at present:
(1) veneer protection in 1: 1: as shown in Figure 2; digital communication equipment 21 is received respectively by two ethernet ports 22,23 on two ports of two veneers 26,27 of MSTP equipment 25; use working port to carry out communication under the normal condition; when active link or working port broke down, two equipment started reserve link simultaneously and carry out communication.Yet there is the lower problem of bandwidth availability ratio in above-mentioned protection scheme, and promptly active link and protection link can not be worked simultaneously; And can not realize 1: the protection of N.
(2) link aggregation protection between plate: shown in 3 figure; mode by port trunking between digital communication equipment 21 and the MSTP equipment 25; with a plurality of (only illustrating two among the figure) Port BindingBundling to together, thereby realize the link protection of equipment room, and provide the bandwidth of link by the mode of load sharing.Yet this scheme realizes difficulty for the SDH/WDM equipment that does not have the intensive data crossing plane, even realize providing the ability of load sharing; This scheme can not realize the link aggregation of port between a plurality of (greater than 2) veneer in addition, and port utilization ratio is not high.
Summary of the invention
The technical problem to be solved in the present invention is, realizes difficulty and the lower defective of port utilization ratio at service protection in the network of the above-mentioned employing aggregated links of prior art, and a kind of Network transmission method and system are provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of Network transmission method, may further comprise the steps:
(a) at least two physical links that will connect two network equipments are configured to aggregated links and use described aggregated links transport service;
(b) will be switched to the protection veneer from the work veneer from the business of described aggregated links when the work single board default of the described network equipment, and use described protection veneer to replace described work veneer to manage business, the protection veneer uses described aggregated links transport service.
In the Network transmission method of the present invention, include multiservice transport platform equipment in the described network equipment, may further comprise the steps in the step (a):
(a1) at least two network ports on the described multiservice transport platform device data veneer of configuration are formed aggregated links and are used described aggregated links transport service for the aggregated links group;
(a2) failed physical link in the described aggregated links of removal, and by the continuation of the residue physical link in described aggregated links transport service.
In the Network transmission method of the present invention, also comprise the work veneer by work veneer and protection the communication port between veneer, the polymerization state of the aggregated links of work veneer is sent to the protection veneer in real time.
In the Network transmission method of the present invention, also comprise the fault recovery of work veneer and after confirming, business is returned the work veneer from the protection board switchover.
In the Network transmission method of the present invention, protect by interface board realization 1:N mode between work veneer in the step (b) and protection veneer, or protect by optical splitter realization 1:1 mode.
The present invention also provides a kind of Network transmitting device; comprise work veneer and protection veneer; also comprise the veneer assembling machine that connects described work veneer and protection veneer; for described veneer assembling machine provides the interface arrangement of external interface and switching services the switching and arbitration device to the protection veneer of the veneer of will working when working single board default; described work veneer and protection veneer also include the link aggregation control device that at least two physical links is polymerized to aggregated links respectively; the fault detect control device of testing single board default; the work veneer uses described aggregated links transport service; when the work single board default; switch with arbitration device the business on the described aggregated links is switched to the protection veneer from the work veneer, the protection veneer uses described aggregated links transport service.
In the Network transmitting device of the present invention, described veneer assembling machine is interface signal bridge-set or light-dividing device.
In the Network transmitting device of the present invention, described link aggregation control device is polymerized to an aggregated links by the port trunking mode with at least two physical links.
In the Network transmitting device of the present invention, described switching with arbitration device also is used for when working the veneer fault recovery business recovery being arrived the work veneer.
Network transmission method of the present invention and system switch by using the protection of link aggregation and tributary card, not only increased the capacity and the protective capability of equipment room link, and the protection of device level is provided.In addition, the present invention has also reduced the cost of equipment.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of existing aggregated links;
Fig. 2 is the structural representation of existing veneer 1:1 protection system;
Fig. 3 is the structural representation of link aggregation protection system between existing plate;
Fig. 4 is the structural representation of Network transmission system of the present invention;
Fig. 5 is the first example structure schematic diagram of the multiservice transport platform among Fig. 4;
Fig. 6 is the second example structure schematic diagram of the multiservice transport platform among Fig. 4;
Fig. 7 is the flow chart of Network transmission method of the present invention.
Embodiment
As shown in Figure 4, be the structural representation of Network transmission system of the present invention.Data communications equipment 41 is connected on the work veneer 46 of multiservice transport platform 45 by many physical links (three physical links 42,43,44 only are shown among the figure).In the present embodiment; by port trunking; realize protection each other and backup between N bar physical link; promptly on multiservice transport platform 45; N ethernet port is configured to a link aggregation group (wherein N is the integer greater than 1), makes physical link 42,43,44 be combined as an aggregated links.Like this, this aggregated links linearity has increased the capacity of link, because all of the port in the aggregated links can send business, and carries out traffic sharing, thereby the link capacity ability of N times of ethernet port is provided.
By above-mentioned port trunking mode, when in the aggregated links a certain or a few physical link faults, by LACP agreement (Link Aggregation Control Protocol, Link Aggregation Control Protocol) or similarly Control Software, failed physical link is removed from aggregated links, continue to use remaining physical link to carry out professional transmission, the assurance data service is not interrupted.For example when physical link 42 faults, use the physical link 43,44 in the aggregated links to proceed professional transmission.
In the present embodiment; the 1:N or the protection in 1: 1 of veneer are provided by Tributary Protection Switch between the work veneer 46 of multiservice transport platform 45 and the protection veneer 47; wherein can realize 1 by the interface board mode: the N protection, protect by the plate level that optical splitter can be realized 1: 1.When work veneer 46 breaks down, be switched to protection veneer 47, replace work veneer 46 to carry out the business transmission by protection veneer 47.
As shown in Figure 5, be the first example structure schematic diagram of the multiservice transport platform 45 among Fig. 4.Multiservice transport platform 45 in the present embodiment includes interface arrangement 51, veneer assembling machine, work veneer 46, protection veneer 47, switches and arbitration device 55 and service dispatching device 56; the veneer 46 of wherein working is connected to veneer assembling machine by a plurality of network ports on it respectively with protection veneer 47; veneer assembling machine then is connected to interface arrangement 51, switches with arbitration device 55 and service dispatching device 56 and all is connected to work veneer 46 and protection veneer 47 simultaneously.In the present embodiment, veneer assembling machine is an interface signal bridge-set (being interface board) 52.
The business interface that interface arrangement 51 is used to provide external is to connect data communications equipment 41, and this interface can be the interfaces such as 10M/100M/1000M/10GE (can be light mouth or electricity mouth) such as Ethernet.Interface signal bridge-set 52 is according to the service board protection switch status of (referring to work veneer 46 or protection veneer 47); business access signal is delivered to the disposable plates of current business, and be responsible for to be sent to the delivery section of interface arrangement 51 from the service signal of current business disposable plates.
Work veneer 46 is used for processing service data, and it includes link aggregation control device 531, business processing device 532 and fault detect control device 533.Wherein link aggregation control device 531 is used to be configured to carry out Port BindingBundling, forms the port trunking group.In addition, link aggregation control device 531 is also according to the link failure situation of each port, the perhaps request of the service of connection devices, the state of the port in the control aggregation group.Business processing device 532 is responsible for professional processing.Fault detect control device 533 is responsible for the control and the management of service board, is responsible for the detection of single board default.In the present embodiment, this failure detector 533 can by clock detection or in real time self check key chip mode detect single board default, and veneer is changed to fault detecting when unusual.
Similar with work veneer 46, protection veneer 47 also includes link aggregation control device 541, business processing device 542 and fault detect control device 543.This protection veneer 47 is worked as a substitute in the work 46 fault epoch of veneer and is made the veneer transport service.Protection veneer 47 can according to the link failure situation, upgrade the link aggregation state again by fault detect control device 543
Switch the switch status control that is used for each service board with arbitration device 55; when detecting work veneer 46 faults as fault detect control device 533 at work veneer 46; carry out switching services, the business transmission of the veneer 46 that is about to work is switched on the protection veneer 47.In addition, switch with arbitration device 55 and also be used for the business transmission being returned to work veneer 46 from protection veneer 47 when work veneer 46 fault recoveries.Service dispatching device 56 is used for professional scheduling, distribution etc.
In addition; for guaranteeing the reliable of professional transmission; but also operational failure detection control apparatus 533 and fault detect control device 543; communication port via physics or logic; protect the state advertisement between veneer 47 and the work veneer 46, promptly, give protection veneer 47 the link aggregation state real-time informing of work veneer 46 by the communication port between protection veneer 47 and the work veneer 46; thereby can take place to protect under the situation of switching at branch road, keep current link aggregation state.
As shown in Figure 6; in second embodiment of multiservice transport platform shown in Figure 4 45; it includes interface arrangement 61, veneer assembling machine, work veneer 46, protection veneer 47 equally, switches and arbitration device 65 and service dispatching device 66; the veneer 46 of wherein working is connected to veneer assembling machine by a plurality of network ports on it respectively with protection veneer 47; veneer assembling machine then is connected to interface arrangement 51, switches with arbitration device 65 and service dispatching device 66 and all is connected to work veneer 46 and protection veneer 47 simultaneously.Different with first embodiment is that in the present embodiment, veneer assembling machine is a light-dividing device (being optical splitter) 62.
In the present embodiment, interface arrangement 61 is the light mouth, and light-dividing device 62 is used for the professional light signal that inserts is carried out beam split, and sends to protection veneer 47 and work veneer 46 simultaneously, will send from the signal of job note plate 46 simultaneously.In the present embodiment, not in running order veneer can not send traffic to light-dividing device 62.
As shown in Figure 7, be the flow chart of Network transmission method of the present invention.At first, many physical links that multiservice transport platform 45 will connect multiservice transport platform 45 and data communications equipment 41 are configured to an aggregated links, and this configuration can realize (step S71) by port trunking.
After the aggregated links configuration was finished, data communications equipment 41 and multiservice transport platform 45 carried out business transmission (step S72) by this aggregated links.
In the process of business transmission, multiservice transport platform 45 is judged the state of aggregated links, promptly judges arbitrary physical link in the aggregated links whether break down (step S73).
If certain one or more physical link breaks down in the aggregated links, then multiservice transport platform 45 is removed the physical link of fault by LACP agreement or similar Control Software from aggregated links, remaining physical link is combined as new aggregated links (step S74), return step S72 then, guarantee the lasting transmission of data service.If all physical links are working properly in the aggregated links, then return step S72.
In aggregated links transmission data procedures, multiservice transport platform 45 also carries out whether failure judgment of veneer, i.e. fault detect control device 533 judgment task veneers 46 by work veneer 46 whether break down (step S75).
If work veneer 46 breaks down, then the business on the aggregated links is switched to protection veneer 47 (step S76) from work veneer 46, and continues to use the aggregated links transport service by switching with arbitration device 65.If work veneer 46 does not break down, return step S72.
In above-mentioned Network transmission method, single board default determining step and aggregated link failures determining step all are real-time, do not have the branch of priority.
In addition, in above-mentioned Network transmission method, also can be included in after the fault recovery of work veneer 46, the business transmission on the protection veneer 47 be returned to the step of work veneer 46.
In the professional transmission course of above-mentioned steps S72; can organize communication port between the veneer 46 by protection veneer 47 and worker; give protection veneer 47 with the link aggregation state real-time informing of work veneer 46, thereby can take place to protect under the situation of switching, keep the polymerization state of current link at branch road.
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 (10)
1. a Network transmission method is characterized in that, may further comprise the steps:
(a) at least two physical links that will connect two network equipments are configured to aggregated links and use described aggregated links transport service;
(b) will be switched to the protection veneer from the work veneer from the business of described aggregated links when the work single board default of the described network equipment, and use described protection veneer to replace described work veneer to manage business, the protection veneer uses described aggregated links transport service.
2. Network transmission method according to claim 1 is characterized in that, includes multiservice transport platform equipment in the described network equipment, may further comprise the steps in the step (a):
(a1) at least two network ports on the described multiservice transport platform device data veneer of configuration are formed aggregated links and are used described aggregated links transport service for the aggregated links group;
(a2) failed physical link in the described aggregated links of removal, and by the continuation of the residue physical link in described aggregated links transport service.
3. Network transmission method according to claim 1 is characterized in that, comprises that also the polymerization state of aggregated links with the work veneer sends to the protection veneer in real time.
4. Network transmission method according to claim 1 is characterized in that, also comprises the fault recovery of work veneer and after confirming business is returned the work veneer from the protection board switchover.
5. Network transmission method according to claim 1 is characterized in that, protects by interface board realization 1:N mode between work veneer in the step (b) and protection veneer, or protects by optical splitter realization 1:1 mode.
6. Network transmitting device; comprise work veneer and protection veneer; it is characterized in that; also comprise the veneer assembling machine that connects described work veneer and protection veneer; for described veneer assembling machine provides the interface arrangement of external interface and switching services the switching and arbitration device to the protection veneer of the veneer of will working when working single board default; described work veneer and protection veneer include the link aggregation control device that at least two physical links is polymerized to aggregated links respectively; the fault detect control device of testing single board default; the work veneer uses described aggregated links transport service; when the work single board default; switch with arbitration device the business on the described aggregated links is switched to the protection veneer from the work veneer, the protection veneer uses described aggregated links transport service.
7. Network transmitting device according to claim 6 is characterized in that, described veneer assembling machine is the interface signal bridge-set.
8. Network transmitting device according to claim 6 is characterized in that, described veneer assembling machine is a light-dividing device.
9. Network transmitting device according to claim 6 is characterized in that, described link aggregation control device is polymerized to an aggregated links by the port trunking mode with at least two physical links.
10. Network transmitting device according to claim 6 is characterized in that, described switching with arbitration device also is used for when working the veneer fault recovery business recovery being arrived the work veneer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200510120885XA CN1983889B (en) | 2005-12-16 | 2005-12-16 | Method and system for transmitting network service |
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| CN200510120885XA CN1983889B (en) | 2005-12-16 | 2005-12-16 | Method and system for transmitting network service |
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| CN1983889A CN1983889A (en) | 2007-06-20 |
| CN1983889B true CN1983889B (en) | 2011-04-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674240B (en) * | 2009-09-24 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for realizing single-node dual home for distributed system |
| CN104040973B (en) * | 2012-12-28 | 2017-05-24 | 华为技术有限公司 | Aggregation group link negotiation method, device and system |
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| CN1406423A (en) * | 2000-02-29 | 2003-03-26 | 睦塞德技术公司 | Link aggregation |
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| CN1499780A (en) * | 2002-10-31 | 2004-05-26 | ���ֿ˰뵼��V.N.����˾ | Ethernet backing plate structure having high practicability |
| JP2005020492A (en) * | 2003-06-27 | 2005-01-20 | Hitachi Ltd | Network repeater |
| CN1599292A (en) * | 2003-09-19 | 2005-03-23 | 中兴通讯股份有限公司 | Single-board backup method and device with line protection |
| JP2005333549A (en) * | 2004-05-21 | 2005-12-02 | Mitsubishi Electric Corp | Duplication method of network repeating device |
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- 2005-12-16 CN CN200510120885XA patent/CN1983889B/en active Active
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|---|---|---|---|---|
| CN1406423A (en) * | 2000-02-29 | 2003-03-26 | 睦塞德技术公司 | Link aggregation |
| CN1433195A (en) * | 2002-01-18 | 2003-07-30 | 富士通株式会社 | Multiple protocol label converting network system |
| CN1499780A (en) * | 2002-10-31 | 2004-05-26 | ���ֿ˰뵼��V.N.����˾ | Ethernet backing plate structure having high practicability |
| JP2005020492A (en) * | 2003-06-27 | 2005-01-20 | Hitachi Ltd | Network repeater |
| CN1599292A (en) * | 2003-09-19 | 2005-03-23 | 中兴通讯股份有限公司 | Single-board backup method and device with line protection |
| JP2005333549A (en) * | 2004-05-21 | 2005-12-02 | Mitsubishi Electric Corp | Duplication method of network repeating device |
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Effective date of registration: 20220922 Address after: No. 1899 Xiyuan Avenue, high tech Zone (West District), Chengdu, Sichuan 610041 Patentee after: Chengdu Huawei Technologies Co.,Ltd. Address before: 518129 Buji Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |