CN104022890A - Fast switching control method and device for pseudo-wire redundancy protection - Google Patents
Fast switching control method and device for pseudo-wire redundancy protection Download PDFInfo
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- CN104022890A CN104022890A CN201310063192.6A CN201310063192A CN104022890A CN 104022890 A CN104022890 A CN 104022890A CN 201310063192 A CN201310063192 A CN 201310063192A CN 104022890 A CN104022890 A CN 104022890A
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Abstract
The invention discloses a fast switching control method and a device for a pseudo-wire redundancy protection; the method comprises the following steps: arranging business adaption on a network processor; a forwarding surface of the network processor sends a received LDP note message to the business adaption; the business adaption parses and processes the LDP note message, determines a present forwarding PW, and triggers PW switching. The device comprises the following elements: an arranging unit used for arranging the business adaption unit on the network processor; a receiving unit used for sending the LDP note message received by the forwarding surface of the network processor to the business adaption unit; the business adaption unit used for parsing and processing the LDP note message, determining the present forwarding PW, and triggering PW switching. The method and device employ the business adaption to parse and process the LDP note message, and to determine the present forwarding PW so as to fast carry out PW switching; a control panel of a physics link is not needed for determination and PW switching, thereby greatly saving PW switching time.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of quick switching-over control and device of pseudo-line redundancy protecting.
Background technology
PWE3 redundancy protecting technology, is a kind of redundancy backup technology for PW business datum, and in the time of main PW link occurs fault, customer traffic is switched to rapidly PW link for subsequent use by PE, reduces user data loss., be illustrated in figure 1 the networking of existing PW redundancy protecting business, between PE1 and PE2, set up expansion LDP session, create main pseudo-line pw1, PE1 and PE3 set up respectively expansion LDP session, create standby pseudo-line pw2.In the time of PW link occurs fault between PE1 and PE2, PE1 protects handoff technique to trigger L2VPN data flow by PW and switches to PW2 from PW1.
At present, the problem that the method that triggering PW protection is switched exists is that processing speed is slow, and general PW switches in level second, is switching to present problem demanding prompt solution so how to shorten PW protection.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of quick switching-over control and device of pseudo-line redundancy protecting, the time of switching in order to further shortening PW protection.
Object of the present invention is mainly achieved through the following technical solutions:
The quick switching-over control that the invention provides a kind of pseudo-line redundancy protecting, comprising:
Business adaptation is set on network processing unit, the LDP notice message of receiving is sent to described business adaptation by the forwarding face of described network processing unit, described business adaptation is carried out dissection process to described LDP notice message, and decision-making goes out current forwarding PW, and triggers PW switching.
Preferably, in the time comprising two network processing units, described LDP notice message is copied the forwarding face that sends to another network processing unit by the forwarding face that receives the described network processing unit of described LDP notice message.
Preferably, also comprise:
The forwarding face of described network processing unit sends to described LDP notice message the chain of command of physical link simultaneously, and described chain of command carries out dissection process to described LDP notice message, and decision-making goes out current forwarding PW, and sends to described business adaptation;
Described business adaptation compares the current forwarding PW of the current forwarding PW of described chain of command decision-making and himself decision-making, if inconsistent, resets forwarding face according to the current forwarding PW of described chain of command decision-making.
Preferably, the adaptive decision-making of described business goes out after current forwarding PW, decision-making is gone out to current forwarding PW and put into timer queue, when timer queue overtime, again the current forwarding PW of the current forwarding PW of described chain of command decision-making and the adaptive decision-making of described business is compared, if inconsistent, reset forwarding face according to the current forwarding PW of described chain of command decision-making.
Preferably, described LDP notice message is PW state negotiation packet.
The present invention also provides a kind of rapid switching control device of pseudo-line redundancy protecting, comprising:
Setting unit, for arranging business adaptation unit on network processing unit;
Receiving element, sends to described business adaptation unit for the LDP notice message that the forwarding face of network processing unit is received;
Described business adaptation unit, for described LDP notice message is carried out to dissection process, decision-making goes out current forwarding PW, and triggers PW switching.
Preferably, also comprise copied cells;
Described copied cells, in the time comprising two network processing units, copies by described LDP notice message the forwarding face that sends to another network processing unit.
Preferably, also comprise: physical link chain of command unit and comparing unit;
Described copied cells also for, described LDP notice message is copied and sends to described physical link chain of command unit;
Described physical link chain of command unit, carries out dissection process for the described LDP notice message that described receiving element is sent, and decision-making goes out current forwarding PW, and sends to described comparing unit;
Comparing unit, for the current forwarding PW of more described business adaptation unit and described physical link chain of command unit decision-making, if inconsistent, resets forwarding face according to the current forwarding PW of physical link chain of command unit decision-making.
Preferably, also comprise: timing unit, carry out timing for the current forwarding PW that decision-making goes out to described business adaptation unit, when arriving after default timing time, trigger described comparing unit.
Preferably, described LDP notice message is PW state negotiation packet.
Beneficial effect of the present invention is as follows:
The invention provides a kind of quick switching-over control and device of pseudo-line redundancy protecting, by business adaptation is set on network processing unit, and by business adaptation, described LDP notice message is carried out to dissection process, decision-making goes out current forwarding PW, thereby carry out fast PW switching, needn't wait the chain of command of physical link to enter decision-making and carry out again PW switching, greatly save the time that PW switches, and the present invention also notifies LDP message to send to the chain of command of physical link simultaneously, the chain of command of physical link carries out dissection process to described LDP notice message, decision-making goes out current forwarding PW, by being gone out to result, the two decision-making compares again, if inconsistent, current forwarding PW according to described chain of command decision-making resets forwarding face, thereby ensure the reliability that PW switches.
Other features and advantages of the present invention will be set forth in the following description, and, part from specification, become apparent, or by implement the present invention understand.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in write specification, claims and accompanying drawing.
Brief description of the drawings
Fig. 1 is existing PW protection business networking diagram;
Fig. 2 is the flow chart of the quick switching-over control of the pseudo-line redundancy protecting of the embodiment of the present invention 1;
Fig. 3 is the rapid switching control device schematic diagram of the pseudo-line redundancy protecting of the embodiment of the present invention 2.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and together with embodiments of the present invention for explaining principle of the present invention.For purpose of clarity and simplification, in the time that it may make theme of the present invention smudgy, by illustrating in detail of known function and structure in omission device described herein.
The embodiment of the present invention comprises interconnective network processing unit (Network Processor is called for short NP) and physical link (Multi-Link PPP, MP), and business adaptation is set on network processing unit.
Embodiment 1
The embodiment of the present invention provides a kind of quick switching-over control of pseudo-line redundancy protecting, referring to Fig. 2, specifically comprises:
The forwarding face of S201, network processing unit copies the LDP notice message of receiving, and sends to the business adaptation of himself and the chain of command of physical link;
In the time comprising two network processing units, the forwarding face that receives the described network processing unit of described LDP notice message copies described LDP notice message, and sends to the forwarding face of another network processing unit.
S202, business adaptation are carried out dissection process to described LDP notice message, and decision-making goes out current forwarding PW, triggers PW and switches;
Business adaptation by network processing unit is carried out dissection process to described LDP notice message, decision-making goes out current forwarding PW, switches thereby trigger PW, has saved and has notified message to enter the step of decision-making at the chain of command that is transmitted to physical link LDP, greatly save the time that PW switches
The chain of command of S203, physical link carries out dissection process to described LDP notice message, and decision-making goes out current forwarding PW, and current forwarding PW is sent to described business adaptation;
S204, business adaptation compare the current forwarding PW of the current forwarding PW of described chain of command decision-making and himself decision-making, if inconsistent, reset forwarding face according to the current forwarding PW of described chain of command decision-making.
Ensure by this step the reliability that PW switches.
Cause shake in order to prevent S202 and S204 from carrying out PW switching frequently, the embodiment of the present invention goes out after current forwarding PW in the adaptive decision-making of described business, decision-making is gone out to current forwarding PW and put into timer queue, when timer queue overtime, again the current forwarding PW of the current forwarding PW of described chain of command decision-making and the adaptive decision-making of described business is compared, if inconsistent, current forwarding PW according to described chain of command decision-making resets forwarding face, switches thereby effectively reduced PW the shake that causes.
Described LDP notice message in the embodiment of the present invention comprises PW state negotiation packet.
The embodiment of the present invention provides a kind of quick switching-over control of pseudo-line redundancy protecting, by business adaptation is set on network processing unit, and by business adaptation, described LDP notice message is carried out to dissection process, decision-making goes out current forwarding PW, thereby carry out fast PW switching, needn't wait the chain of command of physical link to enter decision-making and carry out again PW switching, greatly save the time that PW switches, and the embodiment of the present invention also notifies LDP message to send to the chain of command of physical link simultaneously, the chain of command of physical link carries out dissection process to described LDP notice message, decision-making goes out current forwarding PW, by being gone out to result, the two decision-making compares again, if inconsistent, current forwarding PW according to described chain of command decision-making resets forwarding face, thereby ensure the reliability that PW switches.
Embodiment 2
The embodiment of the present invention provides a kind of rapid switching control device of pseudo-line redundancy protecting, referring to Fig. 3, comprising:
Setting unit, for arranging business adaptation unit on network processing unit;
Receiving element, sends to described business adaptation unit for the LDP notice message that the forwarding face of network processing unit is received;
Business adaptation unit, for described LDP notice message is carried out to dissection process, decision-making goes out current forwarding PW, and triggers PW switching;
Copied cells, in the time comprising two network processing units, copies described LDP notice message, and sends to forwarding face and the physical link chain of command unit of another network processing unit;
Physical link chain of command unit, carries out dissection process for the described LDP notice message that described receiving element is sent, and decision-making goes out current forwarding PW, and the current forwarding PW of decision-making is sent to described comparing unit;
Timing unit, carries out timing for the current forwarding PW that decision-making goes out to described business adaptation unit, when arriving after default timing time, triggers described comparing unit;
Comparing unit, for the current forwarding PW of more described business adaptation unit and described physical link chain of command unit decision-making, if inconsistent, resets forwarding face according to the current forwarding PW of physical link chain of command unit decision-making.
In sum, the embodiment of the present invention provides a kind of quick switching-over control and device of pseudo-line redundancy protecting, by business adaptation is set on network processing unit, and by business adaptation, described LDP notice message is carried out to dissection process, decision-making goes out current forwarding PW, thereby carry out fast PW switching, needn't wait the chain of command of physical link to enter decision-making and carry out again PW switching, greatly save the time that PW switches, and the embodiment of the present invention also notifies LDP message to send to the chain of command of physical link simultaneously, the chain of command of physical link carries out dissection process to described LDP notice message, decision-making goes out current forwarding PW, by being gone out to result, the two decision-making compares again, if inconsistent, current forwarding PW according to described chain of command decision-making resets forwarding face, thereby ensure the reliability that PW switches.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in 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 (10)
1. a quick switching-over control for pseudo-line redundancy protecting, is characterized in that, comprising:
Business adaptation is set on network processing unit, the LDP notice message of receiving is sent to described business adaptation by the forwarding face of described network processing unit, described business adaptation is carried out dissection process to described LDP notice message, and decision-making goes out current forwarding PW, and triggers PW switching.
2. method according to claim 1, it is characterized in that, in the time comprising two network processing units, described LDP notice message is copied the forwarding face that sends to another network processing unit by the forwarding face that receives the described network processing unit of described LDP notice message.
3. method according to claim 1 and 2, is characterized in that, also comprises:
The forwarding face of described network processing unit sends to described LDP notice message the chain of command of physical link simultaneously, and described chain of command carries out dissection process to described LDP notice message, and decision-making goes out current forwarding PW, and sends to described business adaptation;
Described business adaptation compares the current forwarding PW of the current forwarding PW of described chain of command decision-making and himself decision-making, if inconsistent, resets forwarding face according to the current forwarding PW of described chain of command decision-making.
4. method according to claim 3, it is characterized in that, the adaptive decision-making of described business goes out after current forwarding PW, decision-making is gone out to current forwarding PW and put into timer queue, when timer queue overtime, again the current forwarding PW of the current forwarding PW of described chain of command decision-making and the adaptive decision-making of described business is compared, if inconsistent, reset forwarding face according to the current forwarding PW of described chain of command decision-making.
5. method according to claim 1 and 2, is characterized in that, described LDP notice message is PW state negotiation packet.
6. a rapid switching control device for pseudo-line redundancy protecting, is characterized in that, comprising:
Setting unit, for arranging business adaptation unit on network processing unit;
Receiving element, sends to described business adaptation unit for the LDP notice message that the forwarding face of network processing unit is received;
Described business adaptation unit, for described LDP notice message is carried out to dissection process, decision-making goes out current forwarding PW, and triggers PW switching.
7. device according to claim 6, is characterized in that, also comprises copied cells;
Described copied cells, in the time comprising two network processing units, copies by described LDP notice message the forwarding face that sends to another network processing unit.
8. device according to claim 7, is characterized in that, also comprises: physical link chain of command unit and comparing unit;
Described copied cells also for, described LDP notice message is copied and sends to described physical link chain of command unit;
Described physical link chain of command unit, carries out dissection process for the described LDP notice message that described receiving element is sent, and decision-making goes out current forwarding PW, and sends to described comparing unit;
Comparing unit, for the current forwarding PW of more described business adaptation unit and described physical link chain of command unit decision-making, if inconsistent, resets forwarding face according to the current forwarding PW of physical link chain of command unit decision-making.
9. device according to claim 8, is characterized in that, also comprises:
Timing unit, carries out timing for the current forwarding PW that decision-making goes out to described business adaptation unit, when arriving after default timing time, triggers described comparing unit.
10. according to the device described in claim 6 or 7, it is characterized in that, described LDP notice message is PW state negotiation packet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310063192.6A CN104022890A (en) | 2013-02-28 | 2013-02-28 | Fast switching control method and device for pseudo-wire redundancy protection |
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| CN201310063192.6A CN104022890A (en) | 2013-02-28 | 2013-02-28 | Fast switching control method and device for pseudo-wire redundancy protection |
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| CN201310063192.6A Pending CN104022890A (en) | 2013-02-28 | 2013-02-28 | Fast switching control method and device for pseudo-wire redundancy protection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941414A (en) * | 2016-01-04 | 2017-07-11 | 中兴通讯股份有限公司 | The synchronous method and device and link protection system of the link protection result of decision |
| CN110071830A (en) * | 2019-04-15 | 2019-07-30 | 北京华三通信技术有限公司 | Pseudo-wire switchback method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025646A (en) * | 2011-01-05 | 2011-04-20 | 杭州华三通信技术有限公司 | Link switching method and device thereof |
| CN102143060A (en) * | 2010-12-23 | 2011-08-03 | 华为数字技术有限公司 | Method and device for building primary pseudowire and spare pseudowire |
| CN102223660A (en) * | 2011-08-02 | 2011-10-19 | 华为技术有限公司 | Method and device for controlling switching of active/standby pseudo wires |
| US20120236868A1 (en) * | 2011-03-18 | 2012-09-20 | Yan Neng | Method for fast switching traffic in h-vpls |
-
2013
- 2013-02-28 CN CN201310063192.6A patent/CN104022890A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143060A (en) * | 2010-12-23 | 2011-08-03 | 华为数字技术有限公司 | Method and device for building primary pseudowire and spare pseudowire |
| CN102025646A (en) * | 2011-01-05 | 2011-04-20 | 杭州华三通信技术有限公司 | Link switching method and device thereof |
| US20120236868A1 (en) * | 2011-03-18 | 2012-09-20 | Yan Neng | Method for fast switching traffic in h-vpls |
| CN102223660A (en) * | 2011-08-02 | 2011-10-19 | 华为技术有限公司 | Method and device for controlling switching of active/standby pseudo wires |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941414A (en) * | 2016-01-04 | 2017-07-11 | 中兴通讯股份有限公司 | The synchronous method and device and link protection system of the link protection result of decision |
| CN110071830A (en) * | 2019-04-15 | 2019-07-30 | 北京华三通信技术有限公司 | Pseudo-wire switchback method and device |
| CN110071830B (en) * | 2019-04-15 | 2020-03-06 | 北京华三通信技术有限公司 | Pseudo wire back switching method and device |
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Application publication date: 20140903 |