CN1984039A - Fast re-routing method for shared multi-port transmitting link - Google Patents
Fast re-routing method for shared multi-port transmitting link Download PDFInfo
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- CN1984039A CN1984039A CNA2006100604261A CN200610060426A CN1984039A CN 1984039 A CN1984039 A CN 1984039A CN A2006100604261 A CNA2006100604261 A CN A2006100604261A CN 200610060426 A CN200610060426 A CN 200610060426A CN 1984039 A CN1984039 A CN 1984039A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
- H04L45/245—Link aggregation, e.g. trunking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention is applicable for the telecommunications transmission field, discloses a sort of rapid heavy-route method when a number of ports share transmission link, the said method comprises: bind the ports sharing the same transmission link to form a binding port at the terminal; choose a major port in binding ports for message send and receive; make fault detection for the transmission link; choose backup port for message send and receive when link fail is detected. Through the invention, it can solve the backup protection issues when there is only one transmission link network between two communications equipment, meet the user demand for real-time business.
Description
Technical field
The present invention relates to field of communication transmission, the quick heavy-route implementation method when relating in particular to a kind of a plurality of ports share transmission link.
Background technology
Along with development of internet technology; the user improves day by day to the requirement of network reliability; the protection of multilink generally all is provided in the present networking plan, realizes professional the switching in the time standby fast reroute techniques that link failure occurs, to guarantee the continuity of telex network.
Whether available BFD (two-way forwarding detection) be a kind of forward-path mechanism that is used for detecting between a pair of forwarding engine, it provides a kind of low expense, short sense cycle (less than 50ms) between two adjacent systems failure detection mechanism comprises the detection of interface, data link and forwarding engine self.
Fig. 1 shows the quick heavy-route protection scheme of independent backup link of the prior art.
In Fig. 1,, arrive the purpose network and arrive the purpose network through R3 through R2 from R1 from R1 as there being two communication links between the R1 of transmitting terminal and the purpose network.Select a link (for example R1-R2-purpose network among the figure) wherein to carry out message transmissions for active link:
Step 12 is depicted as utilizes fast reroute techniques to switch fast, and reserve link (R1-R3-purpose network) enters operating state;
The advantage of this scheme is, detection method is simple, the time can realize that fastext switches, and has satisfied user's real time business demand; Shortcoming is that under the long situation of transmission path, it is too high to rent many transmission link costs, does not meet the economy requirement.
Fig. 2 shows the networking plan of using transmission looped network in the prior art.
Be connected to transmission looped network by transmission equipment respectively between terminal equipment R1 and the R2, still there are backup link Port1 and Port2 between terminal equipment and the transmission equipment, but only rented a transmission looped network between two transmission equipments and carried out message transmissions, like this, do not have independently two links between terminal equipment R1 and the R2, the message that sends from arbitrary port of R1 can be sent to terminal equipment R2 by Port1 and Port2 simultaneously by transmission equipment B.
The advantage of this scheme is, in traffic transport, utilizes the protection mechanism of transmission looped network self, makes only to rent the accessible transmission that a transmission ring just can be realized message, saved expense; Shortcoming is that terminal equipment must link to each other with transmission looped network by transmission equipment, though have backup link between terminal equipment and transmission equipment, still can't solve the link negotiation problem of receiving terminal.
Summary of the invention
The objective of the invention is to solve the backup protection problem when message transmits by transmission looped network in the prior art, the quick heavy-route when realizing link failure is switched fast, satisfies user's real time business demand, saves service provider's operation cost simultaneously.
In order to realize goal of the invention, the fast rerouting method when the invention provides a kind of a plurality of ports share transmission link said method comprising the steps of:
A plurality of Port BindingBundlings of sharing same transmission link are formed a bond ports at terminal equipment;
In the bond ports of terminal equipment, select a main port transmitting-receiving message;
Transmission link is carried out fault detect;
Select standby port to carry out packet sending and receiving when detecting link failure.
In addition, terminal of the present invention comprises transmission terminal and receiving terminal.
The method of the invention further comprises: described bond ports provides the bundle interface of a logic to upper-layer protocol, and disposed IP address and Routing Protocol in described bundle interface, thereby upper-layer protocol (as Routing Protocol) waits the generation state variation when avoiding port to switch.
Main port described in the method for the invention can be provided with by hand, also can realize configuration by algorithm, and the information configuration that main port will be set is in corresponding bundle interface.
The method of the invention further comprises: default situation message transmits from described main port.
After in the method for the invention link being carried out fault detect, if:
The active link fault-free, then main port is proceeded message transmissions;
Active link breaks down, and then flow switches to reserve link with fast rerouting method and transmits.
Active link described in the method for the invention is the link between main port and the transmission equipment.
In addition, if all of the port link all breaks down, then can select to abandon or handle in the method for the invention by any one port to the message of transmission.
The method of the invention further comprises, behind the described main port link failure recovery, can carry out packet sending and receiving with the following method again:
Flow is switched to former main port; Or
Selected backup port is proceeded packet sending and receiving up to next link failure as new main port, and the former main port of recovery exists as backup port.
Another feature of described method is that described link detecting and packet sending and receiving are carried out synchronously, and testing mechanism detects port according to some cycles, and with fault message be configured in the link corresponding ports on.
Described method also comprises, realizes that by link negotiation a plurality of ports of described bond ports have only a port to be in communications status at any time; And the time of carrying out the flow switching should be after link negotiation is finished.
As seen from the above technical solution provided by the invention, the quick heavy-route implementation method when the present invention has realized transmission link of a plurality of ports share has effectively improved reliability of information transmission, has satisfied the demand of user's real time business.
Description of drawings
Fig. 1 is the quick heavy-route implementation of independent backup link of the prior art;
Fig. 2 is a networking plan of using the single transport looped network in the prior art;
Fig. 3 is at improved technical scheme that prior art proposed in the embodiment of the invention;
The flow chart of the quick heavy-route protection of Fig. 4 when to be the present invention by testing mechanism realize share transmission link.
Embodiment
Core concept of the present invention is: only carrying out under the condition of message transmissions with a transmission looped network, between terminal equipment and the transmission equipment that is attached thereto a plurality of ports and backup link are set, described a plurality of Port BindingBundlings are formed bond ports, and share a transmission link.A plurality of link configuration testing mechanisms between described terminal equipment and transmission equipment are carried out link detecting, carrying out port with fast reroute techniques when link failure takes place switches, to satisfy user's real time business demand, reach the purpose of the operation cost of saving the service provider simultaneously.
In order to make purpose of the present invention, technical scheme and advantage thereof clearer,, the present invention is described in further detail below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 3 shows the networking plan schematic diagram of an embodiment of technical method provided by the invention, promptly absorbs the reasonable composition in the prior art one, between transmission equipment and terminal equipment backup link is set, and configuration BFD agreement is carried out link detecting:
R1 selects Port1 to carry out message transmissions as active link in the transmission terminal, and configuration BFD agreement carries out carrying out link detecting between transmitting terminal R1 and transmission equipment A;
The BFD protocol detection is utilized fast reroute techniques to switch to the Port2 link and is carried out the message transmission to the Port1 link failure;
Port1 link communication ability is recovered, and transmission switches to the Port1 link again.
Message arrives after the receiving terminal transmission equipment B by transmission looped network, from Port3 and Port4 link corresponding message is sent simultaneously;
Message arrives receiving terminal R2, and the R2 acquiescence is carried out the message reception from the main port Port3 of configuration;
BFD detects main port Port3 fault, then selects standby port Port4 to carry out message and receives.
In order in the process that port switches, not lose the user data message, a memory module can be set respectively in the porch of a plurality of ports of receiving terminal, and the time that time of buffer memory detects fault and finishes switching more than or equal to BFD is set.
The detail flowchart of the quick heavy-route protection of Fig. 4 when to be the present invention by testing mechanism realize share transmission link, the described step of Fig. 4 all can realize on the described network of Fig. 3, specifically may further comprise the steps:
Step 401, the message that transmitting terminal R1 sends arrives the logical bundle interface of bond ports;
Step 402, bundle interface is according to the selected main transmit port of using of the main port selective rule of prior setting;
Step 403 according to the testing result information that disposes on the main port, judges whether the main port link breaks down, if do not break down, execution in step 404 if break down, forwards step 405 to;
Step 404, main port are carried out message and are sent;
The selected again port of step 405 is a main port;
Step 406 judges whether the new main port link of selecting breaks down, if do not break down, and execution in step 404, if break down, execution in step 407;
Step 407 judges whether that fault has all taken place all of the port link, if there is the link that does not break down, and execution in step 405, if all of the port link all breaks down, then execution in step 408;
Step 408 abandons the message that is sending, and perhaps selects the port at current message place, perhaps selects arbitrary port that message is sent;
Step 409, the message that successfully sends arrives the receiving terminal bundle interface through transmission looped network;
Step 410, bundle interface is according to the selected main receiving port of using of the main port selective rule of prior setting;
Step 411 judges that main if fault, then execution in step 413 with receiving port link fault whether, if do not break down, then execution in step 412;
Step 412, the master receives message with receiving port;
Step 413, the selected again main receiving port of using;
Step 414 is judged new selected main with receiving port link fault whether, if break down then execution in step 415, if do not break down then execution in step 412;
Step 415 judges whether that all receiving port links all break down, if all of the port link all breaks down, then execution in step 416, if the ports having link does not break down, then execution in step 413;
Step 416 abandons the message that arrives receiving port or front port is worked as in selection or select arbitrary port to carry out the message reception.。
In the said process, before the start of heading transmission, just should a plurality of Port BindingBundlings be formed bond ports at transmitting terminal and receiving terminal, upper-layer protocol is provided the bundle interface of a logic, and configuring IP address and Routing Protocol, the state of upper-layer protocol changes in the time of can avoiding port to switch like this.Equally, should formulate certain rule with regard to the selection of main port before message transmissions, chaotic to avoid taking place when the message transmissions, this configuration can be carried out by hand, also can utilize certain algorithm to realize, and the information configuration that main port will be set is in corresponding bundle interface.
When carrying out packet sending and receiving, the testing mechanism that disposes between terminal equipment and transmission equipment carries out periodicity to link incessantly and detects, and with fault message be configured in the link corresponding ports on.
Need to prove that though the present invention has only enumerated the situation of two same transmission links of ports share, this is the convenience in order to say something just, the situation of the same transmission link of every other a plurality of ports share all belongs to design scope of the present invention.Under the situation of a plurality of links coexistence, testing mechanism is only detecting all reserve links, and under the condition that all breaks down of all reserve links, just may abandon message or select a port transmission arbitrarily, can consider two kinds of situations here again:
Detect the operation that all of the port is all abandoned message immediately after the fault or selected any one port transmission message; Perhaps
After detecting all links and all fault being arranged, later detect active link again, have only under the situation that the active link secondary detection still breaks down, just dropping packets or select a port transmission message arbitrarily.
Another object of the present invention is chaotic for fear of occurring transmission between a plurality of ports of transmitting terminal or receiving terminal, a plurality of ports that therefore must limit described bond ports can only determine that all of the port has only a port to be used for message transmissions any time by certain agreement, and other ports all are in wait or idle state.
In the present invention, also need to prove, lose, should after corresponding link consults to finish, carry out link switchover again in order to prevent data message.
The above uses BFD to carry out the session link detecting only is preferred embodiment of the present invention; be not used for limiting the scope of the invention; all can realize that link detection method all belongs to thought of the present invention; all any modification, replacement and improvement etc. that are equal to the spirit and principles in the present invention all should be included within protection scope of the present invention.
Claims (13)
1, the fast rerouting method during a kind of a plurality of ports share transmission link is characterized in that described method comprises:
A plurality of Port BindingBundlings of sharing same transmission link are formed a bond ports at terminal equipment;
In the bond ports of terminal equipment, select a main port transmitting-receiving message;
Transmission link is carried out fault detect;
The main port link failure selects standby port to carry out packet sending and receiving.
2, the method for claim 1 is characterized in that, described terminal comprises transmission terminal and receiving terminal.
3, the method for claim 1 is characterized in that, described bond ports provides the bundle interface of a logic to upper-layer protocol.
4, method as claimed in claim 3 is characterized in that, has disposed IP address and Routing Protocol in the described bundle interface.
5, the method for claim 1 is characterized in that, described main port can be provided with by hand, also can realize configuration by algorithm, and the information configuration that main port will be set is in corresponding bundle interface.
6, the method for claim 1 is characterized in that, default situation message transmits from described main port.
7, as claim 1 described method, it is characterized in that, transmission link is carried out fault detect after, if:
The active link fault-free, then main port is proceeded packet sending and receiving;
Active link breaks down, and then flow switches to reserve link and transmits.
8, method as claimed in claim 7 is characterized in that, described link detecting and packet sending and receiving are carried out synchronously, and testing mechanism detects link according to some cycles, and with fault message be configured in the link corresponding ports on.
As claim 7 described methods, it is characterized in that 9, described active link is the link between main port and the transmission equipment.
10, as claim 7 described methods, it is characterized in that,, can select to abandon or handle by any one port to the message of transmission if all of the port link all breaks down.
11, the method for claim 1 is characterized in that, described method further comprises, behind the described main port link failure recovery, can redefine main port with the following method:
Flow is switched to former main port; Or
Selected backup port is proceeded packet sending and receiving up to next link failure as new main port, and the former main port of recovery exists as backup port.
As claim 7 or 10 described methods, it is characterized in that 12, the time of carrying out the flow switching should be after link negotiation is finished.
As claim 6,7, the described method of 8 or 10 arbitrary claims, it is characterized in that 13, a plurality of ports of described bond ports have only a port to be in communications status at any time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100604261A CN100561977C (en) | 2006-04-23 | 2006-04-23 | Fast rerouting method during a kind of a plurality of ports share transmission link |
| PCT/CN2006/003524 WO2007121633A1 (en) | 2006-04-23 | 2006-12-21 | A method for rapid rerouting when multiple ports sharing the transmission links |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100604261A CN100561977C (en) | 2006-04-23 | 2006-04-23 | Fast rerouting method during a kind of a plurality of ports share transmission link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1984039A true CN1984039A (en) | 2007-06-20 |
| CN100561977C CN100561977C (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100604261A Expired - Fee Related CN100561977C (en) | 2006-04-23 | 2006-04-23 | Fast rerouting method during a kind of a plurality of ports share transmission link |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100561977C (en) |
| WO (1) | WO2007121633A1 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252459B (en) * | 2008-03-24 | 2010-12-08 | 中兴通讯股份有限公司 | Method for setting protocol state of chain circuit terminal port and supervising method thereof |
| WO2011038591A1 (en) * | 2009-09-30 | 2011-04-07 | 华为技术有限公司 | Method, device and system for master-backup switching in passive optical network (pon) |
| CN102185784A (en) * | 2011-05-26 | 2011-09-14 | 杭州华三通信技术有限公司 | Automatic protection switching method and device |
| CN102299830A (en) * | 2011-09-20 | 2011-12-28 | 杭州华三通信技术有限公司 | Dial-up link detection method and equipment |
| CN101547082B (en) * | 2009-04-22 | 2012-06-27 | 华为技术有限公司 | Active/standby link switching method and network device |
| CN102882704A (en) * | 2012-09-03 | 2013-01-16 | 杭州华三通信技术有限公司 | Link protection method and apparatus in soft restart upgrade process of ISSU (in-service software upgrade) |
| CN101626345B (en) * | 2009-07-23 | 2013-03-20 | 中兴通讯股份有限公司 | Message processing method and real-time stream protocol application layer gateway in home gateway |
| CN101800889B (en) * | 2010-02-02 | 2013-07-10 | 浙江宇视科技有限公司 | Video monitoring method and device |
| CN101299722B (en) * | 2008-07-02 | 2014-10-29 | 杭州华三通信技术有限公司 | Improved quick rerouting method and network equipment |
| CN104796329A (en) * | 2014-01-16 | 2015-07-22 | 中国移动通信集团北京有限公司 | Automatic link switching method and automatic link switching device |
| CN106059791A (en) * | 2016-05-13 | 2016-10-26 | 华为技术有限公司 | Business link switching method and storage device in storage system |
| CN107241174A (en) * | 2017-06-28 | 2017-10-10 | 迈普通信技术股份有限公司 | Method for switching network and the network equipment |
| WO2020043161A1 (en) * | 2018-08-31 | 2020-03-05 | 中兴通讯股份有限公司 | Method and apparatus for transmitting service |
| CN113315802A (en) * | 2020-07-27 | 2021-08-27 | 阿里巴巴集团控股有限公司 | Method, device and equipment for processing network link abnormity |
| CN115297051A (en) * | 2021-05-03 | 2022-11-04 | 迈络思科技有限公司 | Fast reroute using egress port loopback |
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| WO2020066116A1 (en) * | 2018-09-28 | 2020-04-02 | パナソニックＩｐマネジメント株式会社 | Communication device and communication method |
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| US20040221058A1 (en) * | 2003-02-12 | 2004-11-04 | Nortel Networks Limited | Nested protection switching in a mesh connected communications network |
| KR100575945B1 (en) * | 2003-08-26 | 2006-05-02 | 삼성전자주식회사 | Gigabit ethernet passive optical network having double link structure and double link setting method using that |
| CN100440746C (en) * | 2003-12-01 | 2008-12-03 | 中兴通讯股份有限公司 | A method for multi-port multi-link communication network backup control and apparatus therefor |
-
2006
- 2006-04-23 CN CNB2006100604261A patent/CN100561977C/en not_active Expired - Fee Related
- 2006-12-21 WO PCT/CN2006/003524 patent/WO2007121633A1/en active Application Filing
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252459B (en) * | 2008-03-24 | 2010-12-08 | 中兴通讯股份有限公司 | Method for setting protocol state of chain circuit terminal port and supervising method thereof |
| CN101299722B (en) * | 2008-07-02 | 2014-10-29 | 杭州华三通信技术有限公司 | Improved quick rerouting method and network equipment |
| CN101547082B (en) * | 2009-04-22 | 2012-06-27 | 华为技术有限公司 | Active/standby link switching method and network device |
| CN101626345B (en) * | 2009-07-23 | 2013-03-20 | 中兴通讯股份有限公司 | Message processing method and real-time stream protocol application layer gateway in home gateway |
| WO2011038591A1 (en) * | 2009-09-30 | 2011-04-07 | 华为技术有限公司 | Method, device and system for master-backup switching in passive optical network (pon) |
| CN101800889B (en) * | 2010-02-02 | 2013-07-10 | 浙江宇视科技有限公司 | Video monitoring method and device |
| CN102185784A (en) * | 2011-05-26 | 2011-09-14 | 杭州华三通信技术有限公司 | Automatic protection switching method and device |
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| CN102882704B (en) * | 2012-09-03 | 2016-06-29 | 杭州华三通信技术有限公司 | Link protection method in the soft reboot escalation process of a kind of ISSU and equipment |
| CN102882704A (en) * | 2012-09-03 | 2013-01-16 | 杭州华三通信技术有限公司 | Link protection method and apparatus in soft restart upgrade process of ISSU (in-service software upgrade) |
| CN104796329A (en) * | 2014-01-16 | 2015-07-22 | 中国移动通信集团北京有限公司 | Automatic link switching method and automatic link switching device |
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| CN107241174B (en) * | 2017-06-28 | 2020-04-03 | 迈普通信技术股份有限公司 | Network switching method and network equipment |
| WO2020043161A1 (en) * | 2018-08-31 | 2020-03-05 | 中兴通讯股份有限公司 | Method and apparatus for transmitting service |
| CN110875828A (en) * | 2018-08-31 | 2020-03-10 | 中兴通讯股份有限公司 | Method and device for transmitting service |
| CN110875828B (en) * | 2018-08-31 | 2022-04-22 | 中兴通讯股份有限公司 | Method and device for transmitting service |
| CN113315802A (en) * | 2020-07-27 | 2021-08-27 | 阿里巴巴集团控股有限公司 | Method, device and equipment for processing network link abnormity |
| CN115297051A (en) * | 2021-05-03 | 2022-11-04 | 迈络思科技有限公司 | Fast reroute using egress port loopback |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100561977C (en) | 2009-11-18 |
| WO2007121633A1 (en) | 2007-11-01 |
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