CN101521614B - Method, device and system for protecting operator backbone transmission service - Google Patents
Method, device and system for protecting operator backbone transmission service Download PDFInfo
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- CN101521614B CN101521614B CN2008100083530A CN200810008353A CN101521614B CN 101521614 B CN101521614 B CN 101521614B CN 2008100083530 A CN2008100083530 A CN 2008100083530A CN 200810008353 A CN200810008353 A CN 200810008353A CN 101521614 B CN101521614 B CN 101521614B
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Abstract
The invention relates to a method, a device and a system for protecting the operator backbone network transmission service; wherein the method comprises the following steps of: searching a protection group which corresponds to the service and has at least one operator backbone network bridge transmission engineering tunnel and an operator backbone network bridge virtual local area network; detecting whether the malfunction occurs to the operator backbone network bridge transmission engineering tunnel in the protection group or not; if so, the operator backbone network bridge virtual local areanetwork in the protection group is started and used as a backup transmission passage of the operator backbone network bridge transmission engineering tunnel; and sending the service. The method, the device and the system realize the transmission of data frames by sending and receiving on the basis of the protection group, and overcomes the defect that the network survivability in the prior art islow.
Description
Technical field
The invention belongs to moving communicating field, especially belong to a kind of operator backbone transmission service guard method, Apparatus and system.
Background technology
Provider backbone transmission (Provider BackboneTransport based on the IEEE802.1ah standard; Abbreviate PBT as) technology; Claim provider backbone bridging transmission engineering (ProviderBackbone Bridge-Transport Engineering again; Be designated hereinafter simply as PBB-TE), be on provider backbone bridging (Provider Backbone Bridge is designated hereinafter simply as PBB) standard, to improve.
PBB adopts medium access control medium access control (Media Access Control-in-MediaAccess Control; Being designated hereinafter simply as MAC-in-MAC) mode encapsulates; Be specially: terminal use's ethernet data frame is packaged into operator's Ethernet frame head again; Form two medium access control (MediaAccess Control is designated hereinafter simply as MAC) address, make that in the core net of operator, only carrying out flow according to the MAC Address that encapsulates for the second time transmits.
On the basis of PBB, the PBB-TE technology has adopted static configuration forward-path pattern, and 1: 1 of also adopting simultaneously is machine-processed with 1+1 protection.So-called 1: 1 protection mechanism shares out the work exactly and belongs to the Frame of certain srvice instance (Service Instance is designated hereinafter simply as SI), the mechanism that another tunnel receives this Frame through one of them tunnel transmission after tunnel and the protection tunnel.So-called 1+1 protection mechanism is exactly to share out the work that mechanism, another tunnel through one of them tunnel transmission and receiving data frames is in idle state after tunnel and the protection tunnel, only when a tunnel breaks down, just can use another tunnel.
Existing PBB-TE technical disadvantages has: the survivability of network is relatively poor, and when work tunnel all broke down with the protection tunnel, business must be interrupted.
Summary of the invention
The embodiment of the invention provides a kind of operator backbone transmission service guard method, Apparatus and system, with the defective of network survivability difference in the solution prior art, thereby has realized secure provider backbone transmission.
The embodiment of the invention provides a kind of operator backbone transmission service guard method; Comprise: according to the business that receives; Search with business and have the protection group of at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN accordingly; Wherein, Each provider backbone bridging transmission engineering PBB-TE tunnel has unique correspondence in the said protection group B-SA, B-DA and B-VID, said protection group binds at least one PBB-TE tunnel according to service attribute and a provider backbone bridging VLAN PBB VLAN forms; Whether the provider backbone bridging transmission engineering tunnel that detects in the protection group breaks down; When provider backbone bridging transmission engineering tunnel breaks down; It is constant then to keep the B-DA, the B-SA that are used for the encapsulation of data frame, changes said B-VID the B-VID of PBB VLAN in the said protection group into, and searches according to the B-VID of said B-DA and said PBB VLAN and to transmit; Determine port; With transferring data frames,, then in the B-VID of said PBB VLAN, broadcast said Frame if table look-up failure.
The embodiment of the invention provides a kind of operator backbone transmission service protective device; Comprise: search module; Be used for according to business; Search with business and have the protection group of at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN accordingly; Wherein, each provider backbone bridging transmission engineering PBB-TE tunnel has unique correspondence in the said protection group B-SA, B-DA and B-VID, said protection group binds at least one PBB-TE tunnel according to service attribute and a provider backbone bridging VLAN PBB VLAN forms; Detection module, whether the provider backbone bridging transmission engineering tunnel that is used to detect in the protection group breaks down; Protection module is used for breaking down when provider backbone bridging transmission engineering tunnel, and it is constant then to keep the B-DA, the B-SA that are used for the encapsulation of data frame; Said B-VID is changed into the B-VID of PBB VLAN in the said protection group; And search according to the B-VID of said B-DA and said PBB VLAN and to transmit, determine port, with transferring data frames; The failure if table look-up, the then said Frame of broadcasting in the B-VID of said PBB VLAN.
The embodiment of the invention provides a kind of operator backbone transmission service protection system; Comprise transmitting apparatus and receiving equipment; Transmitting apparatus comprises: search module; Be used for searching the protection group that has at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN with said business accordingly, wherein according to the business that receives; Each provider backbone bridging transmission engineering PBB-TE tunnel has unique correspondence in the said protection group B-SA, B-DA and B-VID, said protection group binds at least one PBB-TE tunnel according to service attribute and a provider backbone bridging VLAN PBB VLAN forms; Detection module, whether the provider backbone bridging transmission engineering tunnel that is used to detect in the said protection group breaks down; Protection module is used for breaking down when said provider backbone bridging transmission engineering tunnel, and it is constant to keep the B-DA, the B-SA that are used for the encapsulation of data frame; Said B-VID is changed into the B-VID of PBB VLAN in the said protection group; And search according to the B-VID of said B-DA and said PBB VLAN and to transmit, determine port, with transferring data frames; The failure if table look-up, the then said Frame of broadcasting in the B-VID of said PBB VLAN; Receiving equipment is used to receive the business that transmitting apparatus sends.
A technical scheme of the embodiment of the invention, the mode through the protection group that includes PBB-TE tunnel and PBB VLAN is sent Frame has realized traffic transmission, has overcome the low defective of network survivability in the prior art.
Another technical scheme of the embodiment of the invention, the mode through the protection group that includes PBB-TE tunnel and PBB VLAN is sent Frame has realized traffic transmission, has overcome the low defective of network survivability in the prior art.
Another technical scheme of the embodiment of the invention through based on the transmitting apparatus of protection group with based on the receiving equipment of protection group, has realized the transmission of Frame, has overcome the low defective of network survivability in the prior art.
Description of drawings
Fig. 1 is the flow chart of a kind of operator backbone transmission service guard method first embodiment of the present invention;
Fig. 2 is the flow chart of a kind of operator backbone transmission service guard method second embodiment of the present invention;
Fig. 3 is a kind of operator backbone transmission service protective device first example structure sketch map of the present invention;
Fig. 4 is a kind of operator backbone transmission service protection system first example structure sketch map of the present invention.
Embodiment
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
A kind of operator backbone transmission service guard method first embodiment of the present invention
As shown in Figure 1, be the flow chart of a kind of operator backbone transmission service guard method first embodiment of the present invention, this method specifically comprises as follows:
The business that step 102, basis receive is searched and this business corresponding protection group, and this protection group includes a PBB-TE tunnel and a PBB VLAN; The B-SA that each PBB-TE tunnel has unique correspondence in the protection group; B-DA and B-VID, this protection group binds at least one PBB-TE tunnel according to service attribute (attribute of user) and a PBB VLAN forms, and is specially: if service attribute is point-to-point (Point to Point; Be designated hereinafter simply as P-to-P) business; Can bind a PBB-TE tunnel and a PBB VLAN for this srvice instance (Service Instance is designated hereinafter simply as SI), if service attribute is multi-multipoint (Multi Point to Multi Point; Be designated hereinafter simply as MP-to-MP) business, then bind a plurality of PBB-TE tunnel and a PBB VLAN for this SI.The PBB-TE tunnel is the bi-directional logical channel of being made up of two unidirectional Ethernet switched path (Ethernet Switched Path is designated hereinafter simply as ESP).
A kind of operator backbone transmission service guard method first embodiment of the present invention; Mode through the protection group that includes PBB-TE tunnel and PBB VLAN is sent Frame has realized traffic transmission, simultaneously owing to the protection entity of PBB VLAN as the PBB-TE tunnel; Therefore when the PBB-TE tunnel goes wrong; Switching services is transmitted according to the PBB forward mode to the interior PBB VLAN of this protection group, has realized the protection to business.Because the PBB forward mode calculates forward-path automatically based on multiservice transport platform (Multi-ServiceTransport Platform is designated hereinafter simply as MSTP) technology, thereby has overcome the low defective of prior art survivability, has improved the survivability of network.And a kind of operator backbone transmission service guard method first embodiment of the present invention; Specifically realized based on the P-to-P of protection group professional; Even make P-to-P professional, also can guarantee traffic transmission through the PBB VLAN in the protection group because of work PBB-TE tunnel breaks down.
A kind of operator backbone transmission service guard method second embodiment of the present invention
As shown in Figure 2, be the flow chart of a kind of operator backbone transmission service guard method second embodiment of the present invention, this method specifically comprises as follows:
A kind of operator backbone transmission service guard method second embodiment of the present invention; The MP-to-MP business has been used the method based on PBB VLAN protection PBB-TE tunnel; Even make MP-to-MP professional, also can guarantee professional survivability through the PBB VLAN of protection group because of the PBB-TE tunnel fails.And need not all to dispose a protection PBB-TE tunnel for every PBB-TE tunnel, reduce the workload of configuration to a certain extent, and improved the utilance in PBB-TE tunnel.Through the CCM message of IEEE 802.1ag or ITUY.1731 definition, whether equipment can detect the PBB-TE tunnel and break down.
The another kind of operator backbone transmission service guard method of the present invention first embodiment
The another kind of operator backbone transmission service guard method of the present invention first embodiment specifically comprises: through having the protection group of at least one a PBB-TE tunnel and a PBB VLAN, with the backup receive path of PBB VLAN as the PBB-TE tunnel, receive professional.
The another kind of operator backbone transmission service guard method of the present invention first embodiment; Through the professional mode of protection group of received that includes PBB-TE tunnel and PBB VLAN; Realized reception, simultaneously owing to the protection entity of PBB VLAN, therefore when the PBB-TE tunnel goes wrong as the PBB-TE tunnel to business; Receive business through PBB VLAN, realized protection business.Because the PBB forward mode calculates forward-path automatically based on the MSTP technology, thereby has overcome the low defective of prior art survivability, has improved the survivability of network.Each PBB-TE tunnel has the B-SA of unique correspondence; B-DA and B-VID; This protection group binds at least one PBB-TE tunnel according to service attribute (attribute of user) and a PBBVLAN forms, and is specially: professional if service attribute is P-to-P, then bind a PBB-TE tunnel and a PBB VLAN for this SI; If it is professional that service attribute is MP-to-MP, then bind a plurality of PBB-TE tunnel and a PBB VLAN for this SI.The bi-directional logical channel that the PBB-TE tunnel is made up of two unidirectional ESP.
In the another kind of operator backbone transmission service guard method of the present invention first embodiment, through the PBB-TE tunnel of protection group, receiving data frames, said Frame is the Frame after encapsulating through the MAC-in-MAC mode; Perhaps can also be through the PBB VLAN of protection group, receiving data frames, said Frame is the Frame after encapsulating through the MAC-in-MAC mode.After PBB VLAN receiving data frames, can confirm the described SI of Frame according to I-SID
A kind of operator backbone transmission service protective device first embodiment of the present invention
As shown in Figure 3, be a kind of operator backbone transmission service protective device first example structure sketch map of the present invention, this device specifically comprises:
Identification module 31 is used to discern the business that receives from access device, is specially to identify this professional SI-ID;
Search module 32, be used for,, search the protection group that has at least one a PBB-TE tunnel and a PBB VLAN with said business accordingly promptly according to said professional SI-ID according to said business;
Detection module 33, whether the PBB-TE tunnel that is used to detect in the said protection group breaks down;
Start unit 34 is used for breaking down when said PBB-TE tunnel, then starts the backup transmission passage of the interior PBB VLAN of said protection group as the PBB-TE tunnel in the said protection group;
Transmitting element 35 is used for sending said business through the PBB VLAN in the said protection group.
A kind of operator backbone transmission service protective device first embodiment of the present invention; Mode through the protection group that includes PBB-TE tunnel and PBB VLAN is sent Frame has realized traffic transmission, simultaneously owing to the protection entity of PBB VLAN as the PBB-TE tunnel; Therefore when the PBB-TE tunnel goes wrong; Switching services is transmitted according to the PBB forward mode to the interior PBB VLAN of this protection group, has realized the protection to business.Because the PBB forward mode calculates forward-path automatically based on the MSTP technology, thereby has overcome the low defective of prior art survivability, has improved the survivability of network.Each PBB-TE tunnel has the B-SA of unique correspondence; B-DA and B-VID; This protection group binds at least one PBB-TE tunnel according to service attribute (attribute of user) and a PBB VLAN forms, and is specially: professional if service attribute is P-to-P, then bind a PBB-TE tunnel and a PBB VLAN for this SI; If it is professional that service attribute is MP-to-MP, then bind a plurality of PBB-TE tunnel and a PBBVLAN for this SI.The bi-directional logical channel that the PBB-TE tunnel is made up of two unidirectional ESP.In a kind of operator backbone transmission service protective device first embodiment of the present invention, protection module of the common composition of start unit and transmitting element.
The another kind of operator backbone transmission service protective device of the present invention first embodiment
The another kind of operator backbone transmission service protective device of the present invention first embodiment specifically comprises receiving equipment; Be used for through having the protection group of at least one a PBB-TE tunnel and a PBB VLAN; With the backup receive path of PBBVLAN, receive professional as the PBB-TE tunnel.
The another kind of operator backbone transmission service protective device of the present invention first embodiment; The mode of the protection group of received Frame through including PBB-TE tunnel and PBB VLAN; Realized reception, simultaneously owing to the protection entity of PBB VLAN, therefore when the PBB-TE tunnel goes wrong as the PBB-TE tunnel to business; Receive business through PBB VLAN, realized protection business.Because the PBB forward mode calculates forward-path automatically based on the MSTP technology, thereby has overcome the low defective of prior art survivability, has improved the survivability of network.
A kind of operator backbone transmission service protection system first embodiment of the present invention
As shown in Figure 4; Be a kind of operator backbone transmission service protection system first example structure sketch map of the present invention; This system comprises: transmitting apparatus; Be used for based on protection group, when provider backbone bridging transmission engineering tunnel breaks down, start the provider backbone bridging VLAN in the protection group, send professional with at least one provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN; With receiving equipment 41, be used for through having the protection group of at least one a PBB-TE tunnel and a PBB VLAN, with the backup receive path of PBB VLAN, receive professional as the PBB-TE tunnel.
Wherein, transmitting apparatus further comprises:
Identification module 31 is used to discern the business that receives from access device;
Search module 32, be used for, search the protection group that has at least one a PBB-TE tunnel and a PBB VLAN with said business accordingly according to said business;
Detection module 33, whether the PBB-TE tunnel that is used to detect in the said protection group breaks down;
Start unit 34 is used for breaking down when said PBB-TE tunnel, then starts the backup transmission passage of the interior PBB VLAN of said protection group as the PBB-TE tunnel in the said protection group;
Transmitting element 35 is used for sending said business through the PBB VLAN in the said protection group.
In a kind of operator backbone transmission service protection system first embodiment of the present invention, among transmitting apparatus and a kind of operator backbone transmission service protective device first embodiment of the present invention by identification module, to search the single unit system that module, detection module and protection module constitute identical; Receiving equipment among the another kind of operator backbone transmission service protective device of receiving equipment and the present invention first embodiment is identical, therefore here the concrete structure of transmitting apparatus and receiving equipment is repeated no more.
A kind of operator backbone transmission service protection system first embodiment of the present invention through based on the transmitting apparatus of protection group with based on the receiving equipment of protection group, has realized the transmission of Frame; Simultaneously owing to the protection entity of PBBVLAN as the PBB-TE tunnel; Therefore when the PBB-TE tunnel goes wrong, receive business, realized protection business through PBBVLAN; Thereby overcome prior art and can only rely on PBB-TE tunnel realization data frame transfer; Cause the low defective of Network Transmission survivability, guaranteed the transmission of SI, but also improved the utilance in PBB-TE tunnel.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (9)
1. operator backbone transmission service guard method is characterized in that comprising:
According to the business that receives; Search the protection group that has at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN with said business accordingly; Wherein, Each provider backbone bridging transmission engineering PBB-TE tunnel has unique correspondence in the said protection group B-SA, B-DA and B-VID, said protection group binds at least one PBB-TE tunnel according to service attribute and a provider backbone bridging VLAN PBB VLAN forms;
Whether the provider backbone bridging transmission engineering tunnel that detects in the said protection group breaks down;
When said provider backbone bridging transmission engineering tunnel breaks down; It is constant then to keep the B-DA, the B-SA that are used for the encapsulation of data frame, changes said B-VID the B-VID of PBB VLAN in the said protection group into, and searches according to the B-VID of said B-DA and said PBB VLAN and to transmit; Determine port; With transferring data frames,, then in the B-VID of said PBB VLAN, broadcast said Frame if table look-up failure.
2. operator backbone transmission service guard method according to claim 1; It is characterized in that according to the business that receives, search the protection group that has at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN accordingly with said business and be specially:
According to the srvice instance sign that comprises in the business that receives, search the protection group that has at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN with said business accordingly.
3. operator backbone transmission service guard method according to claim 1 is characterized in that whether provider backbone bridging transmission engineering tunnel in the said protection group of said detection breaks down to be specially:
Through continuing acknowledge message, whether the provider backbone bridging transmission engineering tunnel that detects in the said protection group breaks down.
4. operator backbone transmission service protective device is characterized in that comprising:
Search module; Be used for according to said business; Search the protection group that has at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN with said business accordingly; Wherein, Each provider backbone bridging transmission engineering PBB-TE tunnel has unique correspondence in the said protection group B-SA, B-DA and B-VID, said protection group binds at least one PBB-TE tunnel according to service attribute and a provider backbone bridging VLAN PBB VLAN forms;
Detection module, whether the provider backbone bridging transmission engineering tunnel that is used to detect in the said protection group breaks down;
Protection module is used for breaking down when said provider backbone bridging transmission engineering tunnel, and it is constant then to keep the B-DA, the B-SA that are used for the encapsulation of data frame; Said B-VID is changed into the B-VID of PBB VLAN in the said protection group; And search according to the B-VID of said B-DA and said PBB VLAN and to transmit, determine port, with transferring data frames; The failure if table look-up, the then said Frame of broadcasting in the B-VID of said PBB VLAN.
5. the merchant of battalion backbone transmission service protective device according to claim 4 is characterized in that also comprising:
Identification module is used to discern the business that receives from access device.
6. the merchant of battalion backbone transmission service protective device according to claim 4 is characterized in that said protection module specifically comprises:
Start unit is used for breaking down when said provider backbone bridging transmission engineering tunnel, then starts the provider backbone bridging VLAN in the said protection group;
Transmitting element is used for sending said business through said provider backbone bridging VLAN.
7. an operator backbone transmission service protection system is characterized in that comprising transmitting apparatus and receiving equipment, and said transmitting apparatus comprises:
Search module; Be used for according to the business that receives; Search the protection group that has at least one a provider backbone bridging transmission engineering tunnel and a provider backbone bridging VLAN with said business accordingly; Wherein, Each provider backbone bridging transmission engineering PBB-TE tunnel has unique correspondence in the said protection group B-SA, B-DA and B-VID, said protection group binds at least one PBB-TE tunnel according to service attribute and a provider backbone bridging VLAN PBB VLAN forms;
Detection module, whether the provider backbone bridging transmission engineering tunnel that is used to detect in the said protection group breaks down;
Protection module is used for breaking down when said provider backbone bridging transmission engineering tunnel, and it is constant to keep the B-DA, the B-SA that are used for the encapsulation of data frame; Said B-VID is changed into the B-VID of PBB VLAN in the said protection group; And search according to the B-VID of said B-DA and said PBB VLAN and to transmit, determine port, with transferring data frames; The failure if table look-up, the then said Frame of broadcasting in the B-VID of said PBB VLAN;
Said receiving equipment is used to receive the business that said transmitting apparatus sends.
8. operator backbone transmission service protection system according to claim 7 is characterized in that said transmitting apparatus also comprises:
Identification module is used to discern the business that receives from access device.
9. the merchant of battalion backbone transmission service protection system according to claim 7 is characterized in that said protection module specifically comprises:
Start unit is used for breaking down when said provider backbone bridging transmission engineering tunnel, then starts the provider backbone bridging VLAN in the said protection group;
Transmitting element is used for sending said business through said provider backbone bridging VLAN.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100083530A CN101521614B (en) | 2008-02-26 | 2008-02-26 | Method, device and system for protecting operator backbone transmission service |
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| CN2008100083530A CN101521614B (en) | 2008-02-26 | 2008-02-26 | Method, device and system for protecting operator backbone transmission service |
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| CN101521614A CN101521614A (en) | 2009-09-02 |
| CN101521614B true CN101521614B (en) | 2012-04-04 |
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| CN2008100083530A Expired - Fee Related CN101521614B (en) | 2008-02-26 | 2008-02-26 | Method, device and system for protecting operator backbone transmission service |
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| JP2013205983A (en) * | 2012-03-27 | 2013-10-07 | Sony Corp | Information input apparatus, information input method, and computer program |
| CN103716220B (en) * | 2012-09-28 | 2017-08-22 | 新华三技术有限公司 | A kind of data transmission method and its device |
| CN105490828B (en) * | 2014-09-18 | 2019-09-13 | 南京中兴新软件有限责任公司 | The method and system of automatic modification protection group mark |
| CN111343645B (en) * | 2018-12-19 | 2023-03-24 | 中国电信股份有限公司 | Method and system for service quality assurance |
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| CN1399441A (en) * | 2002-06-28 | 2003-02-26 | 成都卫士通信息产业股份有限公司 | Technology of establishing safe multicasting tunnel with IP layer-based special virtual network |
| US6766482B1 (en) * | 2001-10-31 | 2004-07-20 | Extreme Networks | Ethernet automatic protection switching |
| CN101127724A (en) * | 2007-10-12 | 2008-02-20 | 杭州华三通信技术有限公司 | Multicast system, device and method based on 802.1ah protocol in MAN Ethernet network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766482B1 (en) * | 2001-10-31 | 2004-07-20 | Extreme Networks | Ethernet automatic protection switching |
| CN1399441A (en) * | 2002-06-28 | 2003-02-26 | 成都卫士通信息产业股份有限公司 | Technology of establishing safe multicasting tunnel with IP layer-based special virtual network |
| CN101127724A (en) * | 2007-10-12 | 2008-02-20 | 杭州华三通信技术有限公司 | Multicast system, device and method based on 802.1ah protocol in MAN Ethernet network |
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