CN101827034A - Method and device for realizing quick rerouting - Google Patents
Method and device for realizing quick rerouting Download PDFInfo
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- CN101827034A CN101827034A CN201010169649A CN201010169649A CN101827034A CN 101827034 A CN101827034 A CN 101827034A CN 201010169649 A CN201010169649 A CN 201010169649A CN 201010169649 A CN201010169649 A CN 201010169649A CN 101827034 A CN101827034 A CN 101827034A
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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
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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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
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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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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Abstract
The invention discloses a method and for realizing quick rerouting. The method comprises the following steps: configuring a tunnel default service and other services, which use the same main/standby switching table; and detecting whether the state of the main route is normal; and when confirming that the main route breaks down, setting the main/standby switching table, and switching the tunnel default service and the other services to a selected standby route. The invention can ensure that all the services borne by the tunnel can be quickly switched within the performance requirement range, and greatly reduces the load on the control plane of the tunnel.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device of realizing quick heavy-route.
Background technology
FRR (Fast ReRoute; quick heavy-route) technology is a kind of mechanism of protecting link and node, and it protects main path by being equipped with the path, when main path breaks down; data traffic on the main path is switched to fast to be equipped with on the path, continues to flow to guarantee business datum.
At present, the application of FRR in the network tunnel technology has following implementation method:
Method one: rewrite the information of transmitting, the forwarding information that is about to main path is updated to the forwarding information in path fully, thereby realize FRR, the defective of this method is: in the process that forwarding information upgrades, there is data flow packet loss to occur because forwarding information is imperfect, even possibility exception throw, simultaneously when more professional of tunnel carrying, because the tunnel forward-path changes, need all upgrade operation accordingly to the forwarding information of all Business Streams of carrying, control aspect expense is very big, also can't satisfy all loaded service are finished switching in 50 milliseconds performance requirement simultaneously.
Method two: in transmitting, increase switching mark; and write down main path and be equipped with routing information; select from main path or be equipped with the path to transmit by switching mark; thereby realize FRR; the defective of this method is: if the tunnel carries a plurality of Business Streams; and when main path breaks down; control module need be operated the transmitting of all business of tunnel carrying (such as routing table; the MAC table; label list etc.) switching mark in; equally greatly increase the burden of control aspect, be difficult to also guarantee that all loaded service reach the performance requirement that protection is switched in performance requirement scope (for example less than 50 milliseconds).
In a word, above-mentioned two kinds of methods all can't guarantee in tunnel carrying a plurality of when professional, if when main path breaks down, all business of its carrying can both switch to the tunnel fast and be equipped with on the path in the performance requirement scope.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of method and device of realizing quick heavy-route, can't guarantee that in order to solve existing fast rerouting method all business of carrying on the tunnel main path can both switch to the tunnel fast and be equipped with problem on the path in the performance requirement scope.
Purpose of the present invention mainly is achieved through the following technical solutions:
The invention provides a kind of method that realizes quick heavy-route, comprising:
Steps A: the professional and same active and standby switching table of other professional uses of configured tunneling technique acquiescence;
Step B: whether the state that detects main path is normal, when confirming that described main path breaks down, inquires about described active and standby switching table, and described tunnel acquiescence business and described other business are switched to selected being equipped with on the path.
Further, described steps A specifically comprises:
In tunnel establishment procedure, create that described tunnel corresponding service is transmitted, next jumps active and standby information table, and active and standby switching table; When described tunnel carries other when professional, create that the corresponding service corresponding service is transmitted, next jumps active and standby information table; Next of described tunnel correspondence jumped next corresponding with described corresponding service of active and standby information table and jumped active and standby information table and index described active and standby switching table jointly.
Further, when described active and standby switching table comprised active and standby switching mark and is equipped with routing information, described step B specifically comprised:
Step B1: whether the state that the tunnel detects main path is normal, when confirming that described main path breaks down, the described active and standby switching mark in the described active and standby switching table is set and is equipped with routing information;
Step B2: switch is selected next to jump main path or next to jump and be equipped with the path and carry out data forwarding by inquiring about the described active and standby switching mark in the described active and standby switching table and being equipped with routing information when receiving the data of professional or other the professional transmission of tunnel acquiescence.
Further, when described next jump that active and standby information table comprises active and standby switching table index, next jumps main path information and next and jump when being equipped with routing information, described step B2 specifically comprises:
Step B21: switch finds this professional corresponding service to transmit when receiving the data of professional or other the professional transmission of tunnel acquiescence, and transmits according to described business and to index corresponding next and jump active and standby information table;
Step B22: find described active and standby switching table according to described next active and standby switching table index of jumping in the active and standby information table, determine that according to the described active and standby switching mark in the described active and standby switching table still being equipped with the path from main path carries out data forwarding, if determine to transmit, then carry out data forwarding according to described next next jumping main path information of jumping in the active and standby information table from main path; If determine to carry out data forwarding from being equipped with the path, further according in the described active and standby switching table be equipped with routing information select corresponding next jump and be equipped with routing information and carry out data forwarding.
The present invention also provides a kind of device of realizing quick heavy-route, comprising: configuration module and heavy-route module, wherein,
Configuration module is used for the professional and same active and standby switching table of other professional uses of configured tunneling technique acquiescence;
The heavy-route module, whether the state that is used to detect main path is normal, when confirming that described main path breaks down, inquires about described active and standby switching table, and professional and described other business switch on the selected path fully with described tunnel acquiescence.
Further, described configuration module specifically is used for, and in tunnel establishment procedure, creates that described tunnel corresponding service is transmitted, next jumps active and standby information table, and active and standby switching table; When described tunnel carries other when professional, create that the corresponding service corresponding service is transmitted, next jumps active and standby information table; Next of described tunnel correspondence jumped next corresponding with described corresponding service of active and standby information table and jumped active and standby information table and index described active and standby switching table jointly.
Further, when described active and standby switching table comprised active and standby switching mark and is equipped with routing information, described heavy-route module specifically comprised: detecting unit and inquiry retransmission unit, wherein,
Described detecting unit, whether the state that is used to detect main path is normal, when confirming that described main path breaks down, the described active and standby switching mark in the described active and standby switching table is set and is equipped with routing information;
Described inquiry retransmission unit, be used for when receiving the data of professional or other the professional transmission of tunnel acquiescence, select next to jump main path or next to jump and be equipped with the path and carry out data forwarding by inquiring about the described active and standby switching mark in the described active and standby switching table and being equipped with routing information.
Further, when described next jump that active and standby information table comprises active and standby switching table index, next jumps main path information and next and jump when being equipped with routing information, described inquiry retransmission unit specifically is used for, when receiving the data of tunnel acquiescence business or other professional transmission, find this professional corresponding service to transmit, and transmit according to described business and to index corresponding next and jump active and standby information table; Find described active and standby switching table according to described next active and standby switching table index of jumping in the active and standby information table, determine that according to the described active and standby switching mark in the described active and standby switching table still being equipped with the path from main path carries out data forwarding, if determine to transmit, then carry out data forwarding according to described next next jumping main path information of jumping in the active and standby information table from main path; If determine to carry out data forwarding from being equipped with the path, further according in the described active and standby switching table be equipped with routing information select corresponding next jump and be equipped with routing information and carry out data forwarding.
Beneficial effect of the present invention is as follows:
The present invention uses same active and standby switching list item by all of configured tunneling technique carrying are professional, can realize that all business switch to the tunnel fast and are equipped with and switch to more quickly on the path fully on the path in the performance requirement scope.
Other features and advantages of the present invention will be set forth in the following description, and becoming apparent from specification of part perhaps understood by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Fig. 1 is the main schematic flow sheet of the method for the invention;
Fig. 2 is in the method for the invention, and the forwarding of tunnel and its bearer service concerns schematic diagram;
Fig. 3 is in the method for the invention, and next jumps the structural representation of active and standby information table;
Fig. 4 is that the tunnel carries out the schematic flow sheet of handover configurations in the described method of the embodiment of the invention;
Fig. 5 is that the tunnel carries out the schematic flow sheet of hand-off process in the described method of the embodiment of the invention;
Fig. 6 is in the described method of the embodiment of the invention, and MPLS traffic engineering tunnel loaded service realizes the schematic flow sheet of switching fast;
Fig. 7 is the structural representation of device of the present invention.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing constitutes the application's part, and is used from explaination principle of the present invention with embodiments of the invention one.For clear and simplification purpose, when it may make theme of the present invention smudgy, with specifying in detail of known function and structure in the omission device described herein.
1 be elaborated at first in conjunction with the accompanying drawings to 6 pairs of the method for the invention of accompanying drawing.
As shown in Figure 1, Fig. 1 is the main schematic flow sheet of the method for the invention, specifically can comprise the steps:
Step 101: the professional and same active and standby switching table of other professional uses of configured tunneling technique acquiescence; Be exactly that in certain tunnel establishment procedure, next that needs that the control aspect creates the transmitting of this tunnel correspondence, this tunnel correspondence jumped active and standby information table and active and standby switching table specifically; The acquiescence business of carrying, this tunnel can also carry other business when setting up except this tunnel, and when this tunnel carried other business, corresponding service establishment corresponding service transmits and next jumps active and standby information table.
As shown in Figure 2, Fig. 2 is that the forwarding of tunnel and its bearer service concerns schematic diagram, wherein, each list item of the acquiescence business of carrying when comprising this tunnel in the transmitting of tunnel correspondence and setting up, and owing to need the acquiescence of tunnel carrying professional different, transmitting of tunnel correspondence also may be different, for example, the acquiescence business of certain tunnel carrying is an IP operation, and then this tunnel correspondence transmits the address table for IP; As shown in Figure 3, Fig. 3 jumps the structural representation of active and standby information table for next, next of tunnel correspondence jumped and comprised next professional jumping main path information of tunnel acquiescence, next jumping routing information, active and standby switching table index fully in the active and standby information table, wherein, main path information has one, be equipped with routing information can have one or more, each main path information or be equipped with routing information and comprise respectively that again next jumps path, outlet packaging information etc., what active and standby switching table index used is the list item of active and standby switching table; Simultaneously, next of tunnel correspondence jumped and included active and standby selection marker in the active and standby information table in the active and standby switching table and be equipped with routing information, be used for transmitting data procedures, by inquiring about the active and standby selection marker in the active and standby switching table, decision still is equipped with the path from main path and carries out data forwarding, if transmit, further select wherein a certain to be equipped with the path to transmit according to the routing information that is equipped with in the active and standby switching table from being equipped with the path;
The tunnel is except carrying acquiescence business, can also carry one or multinomial other business, corresponding service establishment corresponding service transmits and next jumps active and standby information table, owing to need other professional differences of this tunnel carrying, the business of different business is transmitted also may be different, such as being MAC table, routing table, label list, IP address table etc.; As shown in Figure 3, professional corresponding next of the structure that next of corresponding service correspondence jumped active and standby information table and tunnel acquiescence jumped the similar (specifically contents in table is different) of active and standby information table, comprising next jumps main path information, is equipped with routing information, active and standby switching table index, wherein, main path information has one, be equipped with routing information can have one or more, each main path information or be equipped with routing information and comprise respectively that again next jumps path, outlet packaging information etc.; Simultaneously, next of corresponding service correspondence jumped and also included active and standby switching table index in the active and standby information table, and what this active and standby switching table index used is the list item of the active and standby switching table of tunnel creation equally.
Step 102: when the tunnel detected main path and breaks down, the control aspect was provided with the active and standby selection marker of active and standby switching table that the tunnel is created and is equipped with routing information, and professional and other business all switch to fully on the path apace with the tunnel acquiescence.
Because all business of this tunnel carrying are when transmitting, what inquire about is the list item of same active and standby switching table, such implementation method can guarantee that all business of tunnel carrying can both realize switching fast in the performance requirement scope, and has greatly alleviated the burden of control aspect.
For the ease of understanding the present invention, will be specifically described for embodiment with MPLS TE (TrafficEngineering, the traffic engineering) tunnel of 1: 1 trail protection mode below.
As shown in Figure 4, Fig. 4 specifically can comprise the steps: for the tunnel carries out the schematic flow sheet of handover configurations
Step 401: set up the active and standby path of MPLS traffic engineering tunnel, the related FRR that forms;
Step 402: create that MPLS traffic engineering tunnel corresponding service is transmitted, the tunnel correspondence next jump active and standby information table, and active and standby switching table;
Step 403: dispose other business, such as: L2 vpn service, L3 vpn service etc.;
Step 404: create respectively other every professional corresponding transmit, next jumps active and standby information table, next of corresponding service jumped main path information and is equipped with routing information to be kept at this next is jumped in the list item of active and standby information table correspondence;
Step 405: jump the active and standby switching table index of preserving the establishment of MPLS traffic engineering tunnel in the active and standby information table other every professional corresponding next;
Step 406: configuration finishes.
As shown in Figure 5, Fig. 5 specifically can comprise the steps: for the tunnel carries out the schematic flow sheet of hand-off process
Step 501: forwarding plane detects MPLS traffic engineering tunnel main path state by chain circuit detecting method (detect such as BFD etc.);
Step 502: whether the state of judging MPLS traffic engineering tunnel main path is normal, if fault is arranged, then execution in step 503; Otherwise, repeated execution of steps 501;
Step 503: the active and standby switching mark in the active and standby switching table that the MPLS traffic engineering tunnel creates is set and is equipped with routing information, carry out the active and standby path of MPLS traffic engineering tunnel and switch.
As shown in Figure 6, Fig. 6 is that MPLS traffic engineering tunnel loaded service realizes the schematic flow sheet of switching fast, specifically can may further comprise the steps:
Step 601: switch receives the tunnel acquiescence business of MPLS traffic engineering tunnel carrying or the data of other professional transmission;
Step 602: the relevant information (MAC Address, IP address etc.) according to these data finds corresponding business to transmit, and next during the business of returning is transmitted jumped active and standby information table index;
Step 603: jump active and standby information table index according to next and find corresponding next to jump active and standby information table, return this next next jumping main path information, next jumping of jumping in the active and standby information table and be equipped with routing information, and active and standby switching table index;
Step 604: to active and standby switching table, return the active and standby selection marker in the active and standby switching table and be equipped with routing information according to active and standby switching table search index;
Step 605: the whether set of active and standby selection marker, if set, next that select then that step 603 returns jumped main path information; Otherwise further the routing information that is equipped with that returns according to step 603 selects one of them next jumping to be equipped with routing information;
Step 606: jump main path information or next according to next and jump and be forwarded to corresponding next-hop device after the outlet packaging information that is equipped with in the routing information is handled data.
Be elaborated below in conjunction with 7 pairs of described devices of the embodiment of the invention of accompanying drawing.
As shown in Figure 7, Fig. 7 is the structural representation of the described device of the embodiment of the invention, specifically can comprise: configuration module and heavy-route module, wherein, the heavy-route module specifically comprises: detecting unit and data forwarding unit.
(1) configuration module mainly is responsible for configured tunneling technique acquiescence business and other business are used same active and standby switching table; Be exactly that configuration module creates that the tunnel corresponding service is transmitted, next jumps active and standby information table in tunnel establishment procedure, and active and standby switching table specifically; When the tunnel carries other when professional, create that the corresponding service corresponding service is transmitted, next jumps active and standby information table; Next of tunnel correspondence jumped next corresponding with corresponding service of active and standby information table and jumped active and standby information table and index active and standby switching table jointly.
(2) heavy-route module, whether the state of mainly being responsible for the detection main path is normal, when confirming that main path breaks down, active and standby switching table is set, and tunnel acquiescence business and other business are switched on the selected path fully.
Active and standby switching table comprises: active and standby switching mark and be equipped with routing information, and this moment, the heavy-route module specifically can comprise: detecting unit and inquiry retransmission unit, wherein,
Detecting unit, whether the state that detects main path is normal, when confirming that main path breaks down, the active and standby switching mark in the active and standby switching table is set and is equipped with routing information;
The inquiry retransmission unit when receiving the data of professional or other the professional transmission of tunnel acquiescence, is selected next to jump main path or next to jump and be equipped with the path and carry out data forwarding by inquiring about the active and standby switching mark in the active and standby switching table and being equipped with routing information.
Next is jumped active and standby information table and comprises: active and standby switching table index, next jumping main path information and next jumping are equipped with routing information, inquire about retransmission unit and specifically can be used for this moment, when receiving the data of tunnel acquiescence business or other professional transmission, find this professional corresponding service to transmit, and transmit according to business and to index corresponding next and jump active and standby information table; Find active and standby switching table according to next active and standby switching table index of jumping in the active and standby information table, determine that according to the active and standby switching mark in the active and standby switching table still being equipped with the path from main path carries out data forwarding, if determine to transmit, then carry out data forwarding according to next next jumping main path information of jumping in the active and standby information table from main path; If determining when being equipped with the path and carrying out data forwarding, further according in the active and standby switching table be equipped with routing information select corresponding next jump and be equipped with routing information and carry out data forwarding.
In sum, the embodiment of the invention provides a kind of implementation method and device of realizing quick heavy-route, the tunnel is by some fault detection methods, such as BFD technology (Bidirectional Forwarding Detection, two-way forwarding detects) wait the detection Link State, when main path breaks down, the triggering tunnel switches, the control aspect only need be provided with the active and standby selection marker of active and standby switching table that the tunnel is created and be equipped with routing information, all business of this tunnel carrying are when transmitting so, what inquire about is same active and standby switching list item, just can realize that all business all switch to fully on the path more quickly, thereby all business that can guarantee the tunnel carrying can both realize switching fast in the performance requirement scope, and have greatly alleviated the burden of control aspect.
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 claims.
Claims (8)
1. a method that realizes quick heavy-route is characterized in that, comprising:
Steps A: the professional and same active and standby switching table of other professional uses of configured tunneling technique acquiescence;
Step B: whether the state that detects main path is normal, when confirming that described main path breaks down, inquires about described active and standby switching table, and described tunnel acquiescence business and described other business are switched to selected being equipped with on the path.
2. method according to claim 1 is characterized in that, described steps A specifically comprises:
In tunnel establishment procedure, create that described tunnel corresponding service is transmitted, next jumps active and standby information table, and active and standby switching table; When described tunnel carries other when professional, create that the corresponding service corresponding service is transmitted, next jumps active and standby information table; Next of described tunnel correspondence jumped next corresponding with described corresponding service of active and standby information table and jumped active and standby information table and index described active and standby switching table jointly.
3. method according to claim 1 and 2 is characterized in that, when described active and standby switching table comprised active and standby switching mark and is equipped with routing information, described step B specifically comprised:
Step B1: whether the state that the tunnel detects main path is normal, when confirming that described main path breaks down, the described active and standby switching mark in the described active and standby switching table is set and is equipped with routing information;
Step B2: switch is selected next to jump main path or next to jump and be equipped with the path and carry out data forwarding by inquiring about the described active and standby switching mark in the described active and standby switching table and being equipped with routing information when receiving the data of professional or other the professional transmission of tunnel acquiescence.
4. method according to claim 3 is characterized in that, when described next jump that active and standby information table comprises active and standby switching table index, next jumps main path information and next and jump when being equipped with routing information, described step B2 specifically comprises:
Step B21: switch finds this professional corresponding service to transmit when receiving the data of professional or other the professional transmission of tunnel acquiescence, and transmits according to described business and to index corresponding next and jump active and standby information table;
Step B22: find described active and standby switching table according to described next active and standby switching table index of jumping in the active and standby information table, determine that according to the described active and standby switching mark in the described active and standby switching table still being equipped with the path from main path carries out data forwarding, if determine to transmit, then carry out data forwarding according to described next next jumping main path information of jumping in the active and standby information table from main path; If determine to carry out data forwarding from being equipped with the path, further according in the described active and standby switching table be equipped with routing information select corresponding next jump and be equipped with routing information and carry out data forwarding.
5. a device of realizing quick heavy-route is characterized in that, comprising: configuration module and heavy-route module, wherein,
Configuration module is used for the professional and same active and standby switching table of other professional uses of configured tunneling technique acquiescence;
The heavy-route module, whether the state that is used to detect main path is normal, when confirming that described main path breaks down, inquires about described active and standby switching table, and professional and described other business switch on the selected path fully with described tunnel acquiescence.
6. device according to claim 5 is characterized in that described configuration module specifically is used for, and in tunnel establishment procedure, creates that described tunnel corresponding service is transmitted, next jumps active and standby information table, and active and standby switching table; When described tunnel carries other when professional, create that the corresponding service corresponding service is transmitted, next jumps active and standby information table; Next of described tunnel correspondence jumped next corresponding with described corresponding service of active and standby information table and jumped active and standby information table and index described active and standby switching table jointly.
7. according to claim 5 or 6 described devices, it is characterized in that when described active and standby switching table comprised active and standby switching mark and is equipped with routing information, described heavy-route module specifically comprised: detecting unit and inquiry retransmission unit, wherein,
Described detecting unit, whether the state that is used to detect main path is normal, when confirming that described main path breaks down, the described active and standby switching mark in the described active and standby switching table is set and is equipped with routing information;
Described inquiry retransmission unit, be used for when receiving the data of professional or other the professional transmission of tunnel acquiescence, select next to jump main path or next to jump and be equipped with the path and carry out data forwarding by inquiring about the described active and standby switching mark in the described active and standby switching table and being equipped with routing information.
8. device according to claim 7, it is characterized in that, when described next jump that active and standby information table comprises active and standby switching table index, next jumps main path information and next and jump when being equipped with routing information, described inquiry retransmission unit specifically is used for, when receiving the data of tunnel acquiescence business or other professional transmission, find this professional corresponding service to transmit, and transmit according to described business and to index corresponding next and jump active and standby information table; Find described active and standby switching table according to described next active and standby switching table index of jumping in the active and standby information table, determine that according to the described active and standby switching mark in the described active and standby switching table still being equipped with the path from main path carries out data forwarding, if determine to transmit, then carry out data forwarding according to described next next jumping main path information of jumping in the active and standby information table from main path; If determine to carry out data forwarding from being equipped with the path, further according in the described active and standby switching table be equipped with routing information select corresponding next jump and be equipped with routing information and carry out data forwarding.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010169649A CN101827034A (en) | 2010-05-12 | 2010-05-12 | Method and device for realizing quick rerouting |
| BR112012028839A BR112012028839A2 (en) | 2010-05-12 | 2011-04-20 | Appliance method to perform fast forwarding |
| PCT/CN2011/073064 WO2011140890A1 (en) | 2010-05-12 | 2011-04-20 | Method and device for realizing fast reroute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010169649A CN101827034A (en) | 2010-05-12 | 2010-05-12 | Method and device for realizing quick rerouting |
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|---|---|
| CN101827034A true CN101827034A (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010169649A Pending CN101827034A (en) | 2010-05-12 | 2010-05-12 | Method and device for realizing quick rerouting |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101827034A (en) |
| BR (1) | BR112012028839A2 (en) |
| WO (1) | WO2011140890A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006227A (en) * | 2010-11-23 | 2011-04-06 | 中兴通讯股份有限公司 | Method and device for determining forwarding path in pseudo-wire (PW) dual homing protection environment |
| WO2011076029A1 (en) * | 2009-12-22 | 2011-06-30 | 中兴通讯股份有限公司 | Method and apparatus for implementing fast reroute |
| WO2011140890A1 (en) * | 2010-05-12 | 2011-11-17 | 中兴通讯股份有限公司 | Method and device for realizing fast reroute |
| CN102291168A (en) * | 2011-08-31 | 2011-12-21 | 航天东方红卫星有限公司 | Satellite remote-control data lettering method |
| CN102857473A (en) * | 2011-06-28 | 2013-01-02 | 联想(北京)有限公司 | Data forwarding method and apparatus |
| WO2013044408A1 (en) * | 2011-09-27 | 2013-04-04 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for path switching |
| CN103973498A (en) * | 2014-05-22 | 2014-08-06 | 杭州华三通信技术有限公司 | Main path and alternate path selecting method and device for multi-attribution network |
| CN104168057A (en) * | 2013-05-20 | 2014-11-26 | 中兴通讯股份有限公司 | Main/standby link switching method, device and system |
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| US20060126502A1 (en) * | 2004-12-14 | 2006-06-15 | Jean-Philippe Vasseur | Efficient mechanism for fast recovery in case of border router node failure in a computer network |
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| CN101217457A (en) * | 2007-12-28 | 2008-07-09 | 华为技术有限公司 | A method to realize fast reroute and router |
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2010
- 2010-05-12 CN CN201010169649A patent/CN101827034A/en active Pending
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2011
- 2011-04-20 BR BR112012028839A patent/BR112012028839A2/en not_active Application Discontinuation
- 2011-04-20 WO PCT/CN2011/073064 patent/WO2011140890A1/en active Application Filing
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| US20060126502A1 (en) * | 2004-12-14 | 2006-06-15 | Jean-Philippe Vasseur | Efficient mechanism for fast recovery in case of border router node failure in a computer network |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076029A1 (en) * | 2009-12-22 | 2011-06-30 | 中兴通讯股份有限公司 | Method and apparatus for implementing fast reroute |
| WO2011140890A1 (en) * | 2010-05-12 | 2011-11-17 | 中兴通讯股份有限公司 | Method and device for realizing fast reroute |
| CN102006227A (en) * | 2010-11-23 | 2011-04-06 | 中兴通讯股份有限公司 | Method and device for determining forwarding path in pseudo-wire (PW) dual homing protection environment |
| WO2012068907A1 (en) * | 2010-11-23 | 2012-05-31 | 中兴通讯股份有限公司 | Method and device for determining forwarding path in pw dual homing protection environment |
| CN102857473A (en) * | 2011-06-28 | 2013-01-02 | 联想(北京)有限公司 | Data forwarding method and apparatus |
| CN102291168A (en) * | 2011-08-31 | 2011-12-21 | 航天东方红卫星有限公司 | Satellite remote-control data lettering method |
| WO2013044408A1 (en) * | 2011-09-27 | 2013-04-04 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for path switching |
| US9407496B2 (en) | 2011-09-27 | 2016-08-02 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for path switching |
| CN104168057A (en) * | 2013-05-20 | 2014-11-26 | 中兴通讯股份有限公司 | Main/standby link switching method, device and system |
| CN103973498A (en) * | 2014-05-22 | 2014-08-06 | 杭州华三通信技术有限公司 | Main path and alternate path selecting method and device for multi-attribution network |
| CN103973498B (en) * | 2014-05-22 | 2017-09-15 | 新华三技术有限公司 | A kind of many home network active-standby path systems of selection and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012028839A2 (en) | 2017-12-19 |
| WO2011140890A1 (en) | 2011-11-17 |
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Application publication date: 20100908 |