CN100403686C - Data service protection reverse triggering process and apparatus - Google Patents
Data service protection reverse triggering process and apparatus Download PDFInfo
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- CN100403686C CN100403686C CNB2005100353131A CN200510035313A CN100403686C CN 100403686 C CN100403686 C CN 100403686C CN B2005100353131 A CNB2005100353131 A CN B2005100353131A CN 200510035313 A CN200510035313 A CN 200510035313A CN 100403686 C CN100403686 C CN 100403686C
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Abstract
The present invention discloses a method for triggering data service protection switching, which is used for an optical transmission network. A data service is multiplexed to a virtual channel in the optical transmission network, and the actual bandwidth of the virtual channel can be dynamically adjusted. The method mainly comprises the following steps: A. the triggered bandwidth of the data service protection switching is preset and triggered; B. whether the actual available bandwidth of the data service is lower than the triggered bandwidth is detected, if true, the data service protection switching is triggered, or else the detection is sequentially carried out. In addition, the present invention also discloses a device for triggering the corresponding data service protection switching. The present invention uses the actual available bandwidth of the data service to trigger protection switching, and thus, the actual requirements of a customer can be satisfied.
Description
Technical field
The present invention relates to a kind of data service treatment technology, refer to data service protection reverse triggering process and device in a kind of optical transport network (for example SDH, Sonet, OTN etc.) especially.
Background technology
In recent years, the broadband data service develop rapidly, in all data services, Ethernet service with the fastest developing speed, ethernet technology relies on it to be easy to plurality of advantages such as use, low price, autgmentability be good,, evolve to main data service access technology, briefly from a kind of local area network technology of main flow, Ethernet service is exactly (as 10Mbps by Ethernet interface, 100Mbps, 1Gbps, 10Gbps interface) (bps, bits per second) provide data service.At present, the access of data service, exchange and transmission not only have been confined to traditional exchange access device and data communications equipment, have also realized partial data service access function in optical transport network.Because the fast development of data service; the importance of its institute's loaded service is also more and more higher; therefore also more and more higher to the requirement of service security and robustness; in this case; each normal structure or is being worked out relevant data service protection standard agreement; (the ITU-T of international telecommunication union telecommunication standardization for example; InternationalTelecommunication Union-Telecommunication Standardization Sector) the Ethernet APS agreement (APS that is formulating at present; Automatic Protection Switch); Resilient Packet Ring (RPR, Resilient Packet Ring) the protection switch function agreement (IEEE 802.17 agreements) that Institute of Electrical and Electronics Engineers (IEEE) is worked out.
With reference to figure 1, this figure adopts the APS agreement to carry out the principle schematic that the Ethernet service protection is switched in the prior art optical transport network.
The APS agreement provides the linear protection function to Ethernet service, its operation principle as shown in the figure:
1+1,1:1, multiple single-direction and dual-direction protected modes such as 1:n, m:n are supported in Ethernet APS protection; diagram only is the schematic diagram of 1+1 or 1:1 unidirectional protection mode; work entity also may comprise or pass through other website with the protection entity in actual applications; the bidirectional protective mode can be thought the unidirectional protection of two different directions; and that 1:n, m:n protected mode only are work entities is different with the corresponding number of protection entity; in addition; the protection entity of 1:1,1:n, m:n protected mode can transmit extra traffic, and extra traffic is interrupted when the generation protection is switched.The operation principle of Ethernet APS protection is described shown in the above figure: the 1+1 mode is that the two sending services of source end website (i.e. the network element A of last figure) are to work entity and protection entity, and select the business of knocking off and making entity or protecting entity by the selector of point of termination station (i.e. the network element B of last figure and network element C), selector receives the business from work entity under the normal condition, when work entity breaks down when causing service disconnection, selector receives the business of self-shield entity, thereby finishes the service protection function; The 1:1 mode is that source end website under normal circumstances sends to work entity with business; the selector of point of termination station receives the business from work entity; protect entity can transmit extra traffic this moment; and when work entity hinders interruption for some reason; point of termination station can detect, and passes through the signaling source end website of APS protocol definition, and source end website can send to business the protection entity automatically; and the selector of point of termination station can receive the business of self-shield entity, and this moment, extra traffic interrupted.The principle of 1:n, m:n mode and 1:1 mode is roughly the same, and just work entity is one-to-many or multi-to-multi with the quantity of protection entity.
In addition, with reference to figure 2a-Fig. 2 b, RPR protection switch function agreement (IEEE 802.17 agreements) also can play a protective role to the data business, and RPR also has the function of bandwidth fair allocat simultaneously, but RPR can only work in loop network.
RPR is a Shuangzi ring working method, can be called 0 ring and 1 ring, and the business datum flow path direction in these two subrings is opposite.The protection Switch mode of RPR is divided into loopback (Wrap) pattern and turns to (Steering) pattern, loopback (Wrap) pattern is shown in Fig. 2 a, suppose that business inserts the back from network element A and sends to network element D by the RPR looped network, determine that by the RPR protocol algorithm business walks 0 ring and arrive network element D, professional trend is network element A-network element B-network element C-network element D, if 0 ring at this moment between network element B and network element C barrier for some reason interrupts, network element B and network element C can directly be looped back to 0 ring business 1 ring automatically, this moment, professional trend was looped back to 0 ring-network element C-network element D for network element A-network element B-is looped back to 1 ring-network element B-network element A-network element F-network element E-network element D-network element C-, and this protection Switch mode is loopback (Wrap) pattern; In addition; with reference to figure 2b; network element B and network element C are not looped back to 1 ring with business from 0 if having no progeny during the ring of 0 between network element B and the network element C hinders for some reason; but the place that takes place by RPR notice of settlement network element A and network element D fault; network element A can send to business 1 ring automatically; and network element D also directly goes up the business of reception to 1 ring, so this moment, professional trend was network element A-network element F-network element E-network element D, this protection Switch mode is for turning to (Steering) pattern.1 ring or two subrings simultaneously because of the protection manner of execution of service disconnection with top described identical, be the direction difference of service loop or transmission.
To sum up; technology according to present data service protection reverse; for example automatic resist technology of Ethernet APS and RPR protect the operation principle of switching technique; only when detecting traffic failure; just starting professional protection switches; also promptly triggering the condition that service protection switches is service disconnection; but; when practical application, in the adjustable optical transport network of professional actual available bandwidth, professional actual available bandwidth can dynamically be adjusted; when professional actual available bandwidth drops to a certain determined value; can not satisfy user's bandwidth demand, the user can require to trigger corresponding protection and switched this moment, but present data service protection reverse function can't satisfy this demand.
Summary of the invention
The technical problem that the present invention solves provides a kind of data service protection reverse triggering process and device, to avoid prior art because the service bandwidth adjustment, the situation of but can not the trigger data service protection when bandwidth drops to certain determined value switching.
For addressing the above problem, data service protection reverse triggering process of the present invention is used for optical transport network, and described data service is multiplexed in the Virtual Channel of described optical transport network, and the actual bandwidth dynamic adjustable of described Virtual Channel comprises the steps:
The triggering bandwidth that A, default trigger data service protection are switched;
Whether B, detection data service actual available bandwidth are lower than described triggering bandwidth, if testing result is for being lower than described triggering bandwidth, then the trigger data service protection is switched, otherwise, continue to detect.
Wherein, described Virtual Channel actual available bandwidth can be regulated by Link Capacity Adjustment Scheme.
Optionally, the described triggering bandwidth of steps A is set to the Virtual Channel member number and the granularity thereof of data services;
Whether step B detection data service actual available bandwidth is lower than described triggering bandwidth comprises:
Whether the Virtual Channel granularity of B1, the actual data services of detection is identical with the Virtual Channel granularity that is provided with, if identical, execution in step B2; Otherwise execution in step B3;
B2, detect data services actual available Virtual Channel member number whether less than the Virtual Channel member number of the data services of described setting, if less than, execution in step B4 then, otherwise, execution in step B5;
B3, determine that whether last bandwidth numerical value is less than back one bandwidth numerical value after all converting the Virtual Channel member number of the data services of the actual available Virtual Channel member number of data services and granularity and described setting and granularity thereof to bandwidth numerical value, if less than, execution in step B4 then, otherwise, execution in step B5;
B4, the detected data service actual available bandwidth of judgement are lower than the triggering bandwidth;
B5, the detected data service actual available bandwidth of judgement are not less than the triggering bandwidth.
Optionally, the described triggering bandwidth of steps A is set to bandwidth numerical value;
Whether step B detection data service actual available bandwidth is lower than described triggering bandwidth comprises:
Determine that whether this bandwidth numerical value is less than described bandwidth numerical value after converting the actual available Virtual Channel member number of data services and granularity thereof to bandwidth numerical value, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
Wherein, described data service protection reverse adopts Ethernet APS agreement or adopts the elastic packet ring protection turning protocol to carry out.
Accordingly, data service protection reverse trigger equipment of the present invention is used for optical transport network, and described data service is multiplexed in the Virtual Channel of described optical transport network, and the actual bandwidth dynamic adjustable of described Virtual Channel comprises:
Checkout gear is used to detect the triggering bandwidth whether the data service actual available bandwidth is lower than the preset trigger data service protection reverse;
Switch trigger equipment, be used for testing result for the data service actual available bandwidth is lower than during described triggering bandwidth the trigger data service protection switch.
Wherein, described Virtual Channel actual available bandwidth can be regulated by Link Capacity Adjustment Scheme.
Optionally, described triggering bandwidth is set to bandwidth numerical value;
Described checkout gear comprises:
First detecting unit is used to detect the actual available Virtual Channel member number and the granularity thereof of data services;
First computing unit is used for converting the detected reality of first detecting unit available Virtual Channel member number and granularity thereof to concrete bandwidth numerical value;
First judging unit, be used for determining that whether first computing unit calculates the bandwidth numerical value that obtains less than described bandwidth numerical value, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
Optionally, described triggering bandwidth is set to the Virtual Channel member number and the granularity thereof of data services;
Described checkout gear comprises:
Second detecting unit is used to detect the actual available Virtual Channel member number and the granularity thereof of data services;
Second judging unit is used to judge whether the Virtual Channel member granularity of actual data services is identical with the Virtual Channel member granularity that is provided with;
The 3rd judging unit, be used in the second judgment unit judges result under the identical situation, whether the actual available Virtual Channel member number of determining the detected data services of second detecting unit is less than the Virtual Channel member number of the data services of described setting; If less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth; Otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth;
Second computing unit, be used in the second judgment unit judges result under the situation inequality, all convert the Virtual Channel member number and the granularity thereof of the data services of the actual available Virtual Channel member number of data services and granularity and described setting to bandwidth numerical value;
The 4th judging unit is used for determining that whether second computing unit calculates the last bandwidth numerical value that obtains less than back one bandwidth numerical value, if less than, judge that detected data service actual available bandwidth is lower than the triggering bandwidth; Otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
Wherein, described data service protection reverse can adopt Ethernet APS agreement or adopt the elastic packet ring protection turning protocol to carry out.
Compared with prior art, the present invention has following beneficial effect:
The triggering bandwidth of switching by default trigger data service protection among the present invention; after detecting the data service actual available bandwidth and being lower than described triggering bandwidth; the trigger data service protection is switched; because protection is switched according to professional actual available bandwidth and is triggered; make system works more flexible; more can satisfy the bandwidth demand of different user to data service protection reverse; particularly at present just at the bandwidth demand of popular Ethernet APS or RPR protection; thereby avoided in the optical transport network that starts the Bandwidth Dynamic adjustment (for example having in the optical transport network of LCAS function); actual available work bandwidth less than the user the situation that data service protection reverse can't be triggered under the situation of patient bandwidth so that the data service protection function can better meet client's actual needs.
Description of drawings
Fig. 1 adopts Ethernet APS agreement to carry out the principle schematic that service protection is switched in the prior art optical transport network;
Fig. 2 a adopts RPR protection turning protocol to carry out loopback (Wrap) the pattern principle schematic that service protection is switched in the prior art optical transport network;
Fig. 2 b be adopt in the prior art optical transport network that RPR protection turning protocol carries out that service protection switches turn to (Steering) pattern principle schematic;
Fig. 3 is the schematic diagram that professional actual available bandwidth changes in the network environment;
Fig. 4 is the embodiment flow chart of data service protection reverse triggering process of the present invention;
Fig. 5 is the composition schematic diagram of data service protection reverse trigger equipment of the present invention.
Embodiment
Usually, in the optical transport network transmission of data business is based on passage or Virtual Channel function, service bandwidth can be joined.Virtual Channel member described in the present invention includes but not limited to the VT1.5/STS-1/STS-3c of VC12/VC3/VC4, the Sonet of SDH, the ODU1/ODU2/ODU3 of OTN etc.Under based on Virtual Channel function transmitting data service situation, can carry out dynamic adjustments to professional actual available bandwidth by some function such as Link Capacity Adjustment Scheme (LCAS, Link Capacity Adjestment Scheme).A kind of link capacity that the Virtual Channel function that is based on LCAS realizes is adjusted resist technology, reaches protective effect to business by adjusting actual binding member during part member's fault that it can be in Virtual Channel.But, when fault takes place, the working member of link Virtual Channel can reduce, link bandwidth will reduce, when all members in the link Virtual Channel break down, professional just interruption, as long as and be not activated or do not support have a member to break down in the Virtual Channel of LCAS function, the business of whole Virtual Channel all can be interrupted.
Describe according to background technology; existing data service protection reverse technology; for example Ethernet APS and RPR resist technology all are to detect professional break-make; rather than detect professional actual available bandwidth and whether reduce; so the condition that their triggering service protections are switched is service disconnection just; when they are applied in the adjustable optical transport network of service bandwidth; when for example being used with LCAS; promptly when two subrings of the work entity of Ethernet APS or RPR looped network start the LCAS functions; when having only the interior whole members of work entity or RPR subring Virtual Channel to break down, could trigger Ethernet APS or RPR service protection switch function.
In order to overcome the shortcoming of above-mentioned prior art; improvement of the present invention is the actual available bandwidth of data service is compared with the triggering bandwidth that sets in advance; and then determine whether that according to comparative result the trigger data service protection switches; professional actual available bandwidth less than the user can switch by the trigger data service protection by method of the present invention under the situation of patient bandwidth, thereby make the data service protection function can better meet client's needs.
Describe below in conjunction with concrete network environment.
With reference to figure 3, this figure is the schematic diagram of practical business bandwidth change in a kind of network environment.
As shown in the figure, the Virtual Channel of Ethernet APS work entity or RPR subring is actual has bound x+y member (as VC12/VT1.5/ODU1 etc.), suppose to have in running x member's fault, this x member will delete from Virtual Channel so, so the real work member is y in the Virtual Channel.The present invention will compare hope that the y of real work member's bandwidth (hereinafter to be referred as actual bandwidth) and user be provided with to trigger the bandwidth that Ethernet APS or RPR protection switch (this bandwidth can be concrete Virtual Channel member number and granularity thereof; as 3 VC12 or 3 VT1.5 or 2 ODU1 etc.; it also can be concrete service bandwidth value; as 50Mbps or 80Mbps etc., hereinafter to be referred as triggering bandwidth) whether trigger Ethernet APS or the RPR protection is switched with decision.In the present embodiment only example explanation trigger condition that Ethernet APS or RPR protection are switched, detect with calculating etc.; as for the mode of switching (unidirectional or two-way, recovery formula or non-recovery formula, 1+1 or 1:1 or 1:n or m:n or loopback, turn to) and the action before and after switching handle (as going shake) and wait all the Ethernet APS agreement that can formulate according to ITU-T or 802.17 agreements of IEEE formulation to carry out, repeat no more here.
With reference to figure 4, this figure is that the present invention adopts Ethernet APS agreement or RPR protection turning protocol to carry out the specific embodiment flow chart that Ethernet or RPR service protection are switched.Specifically carrying out at first setting the triggering bandwidth before service protection is switched; Virtual Channel member number and granularity or concrete bandwidth numerical value that triggering bandwidth described in the present embodiment is set to transport service, below specifically carry out the operating procedure that service protection is switched for the present invention:
At step s11, after Ethernet APS work entity or RPR subring Virtual Channel start the LCAS function, professional actual available bandwidth can descend because of member's fault in the Virtual Channel, system can detect professional actual available bandwidth in real time by the LCAS functional module, and at step s12, professional actual available bandwidth and triggering bandwidth are compared, if the setting of triggering bandwidth is that member's granularity of Virtual Channel member number and granularity mode and setting is identical with the Virtual Channel member granularity of actual transport service, the Virtual Channel member number of so that professional reality is the available Virtual Channel member number and the triggering bandwidth of setting directly compares, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
If it is inequality to trigger the Virtual Channel member granularity of member's granularity that the setting of bandwidth is Virtual Channel member number and granularity mode and setting and actual transport service, the Virtual Channel member number of then that professional reality is the available Virtual Channel member number and the triggering bandwidth of granularity and setting thereof and granularity thereof all convert bandwidth numerical value to and compare, if last bandwidth numerical value is less than back one bandwidth numerical value, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
If triggering the setting of bandwidth is concrete bandwidth numerical value, after the actual available Virtual Channel member number of transport service and granularity thereof are converted to bandwidth numerical value, this bandwidth numerical value and bandwidth numerical value are directly compared, if this bandwidth numerical value is less than bandwidth numerical value, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
When professional actual available bandwidth during less than the triggering bandwidth that sets in advance, at step s13, system will trigger Ethernet APS or the RPR protection is switched, and when professional actual available bandwidth is not less than the triggering bandwidth that sets in advance, then returns step s11 and continues to detect.
Usually, Ethernet APS protection is divided into two kinds of recovery formula and non-recovery formulas, after business is switched to the protection entity owing to the work entity fault and from work entity, if the work entity fault has been eliminated, business will be switched to work entity from the protection entity again so, and this protected mode is recovery formula APS protection; And after business was switched to the protection entity owing to the work entity fault and from work entity, even the work entity fault has been eliminated, business also continued to operate on the protection entity, and this protected mode is called non-recovery formula APS protection.Above various protected modes can be chosen as recovery formula or non-recovery formula as required.The protection Switch mode of RPR all is the recovery formula, and promptly after ring was gone up fault clearance, business can be switched back original normal send mode.
For non-recovery formula APS protection, above step has been finished the triggering that service protection is switched.And for recovering formula APS protection or RPR protection; also must continue the professional actual available bandwidth of testing entity or subring; and with trigger bandwidth and compare; comparative approach is identical with above step; when professional actual available bandwidth when triggering bandwidth; system will remove Ethernet APS or the RPR protection is switched, and is about to professional transmitting-receiving and returns to the mode of switching before taking place of protecting.
The following describes another aspect of the present invention.
With reference to figure 5, this figure is the schematic diagram of data service protection reverse trigger equipment of the present invention.The data service protection reverse trigger equipment is applied in the optical transport network among the present invention, and described data service is multiplexed in the Virtual Channel of described optical transport network, and described Virtual Channel bandwidth is carried out dynamic adjustments by Link Capacity Adjustment Scheme.Concrete, the data service protection reverse trigger equipment comprises among the present invention:
Described checkout gear detect whether the data service actual available bandwidth is lower than whether the actual available Virtual Channel member number of described triggering bandwidth by detecting data services judged less than the Virtual Channel member number of described default data services or by the actual available Virtual Channel member number of data services and granularity thereof are converted to determine behind the bandwidth numerical value this bandwidth numerical value whether less than the concrete bandwidth numerical value of described default data services or by the Virtual Channel member number of the actual available Virtual Channel member number of data services and granularity thereof and described default data services and granularity thereof are all converted to determine behind the bandwidth numerical value last bandwidth numerical value whether less than after a bandwidth numerical value judge, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth, specifically can repeat no more here with reference to above stated specification.
Below with specific embodiment explanation checkout gear.
Triggering bandwidth described in the present invention is set to bandwidth numerical value;
Described checkout gear can comprise:
First detecting unit is used to detect the actual available Virtual Channel member number and the granularity thereof of data services;
First computing unit is used for converting the detected reality of first detecting unit available Virtual Channel member number and granularity thereof to bandwidth numerical value;
First judging unit, be used for determining that whether first computing unit calculates the bandwidth numerical value that obtains less than described bandwidth numerical value, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
Can be set to the member's number and the granularity thereof of the Virtual Channel of data services in the triggering bandwidth described in the another embodiment of the present invention;
Described checkout gear can comprise:
Described triggering bandwidth is set to the Virtual Channel member number and the granularity thereof of data services;
Described checkout gear comprises:
Second detecting unit is used to detect the actual available Virtual Channel member number and the granularity thereof of data services;
Second judging unit is used to judge whether the Virtual Channel member granularity of actual data services is identical with the Virtual Channel member granularity that is provided with;
The 3rd judging unit, be used in the second judgment unit judges result under the identical situation, whether the actual available Virtual Channel member number of determining the detected data services of second detecting unit is less than the Virtual Channel member number of described default data services; If less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth; Otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth;
Second computing unit, be used in the second judgment unit judges result under the situation inequality, all convert the Virtual Channel member number and the granularity thereof of the actual available Virtual Channel member number of data services and granularity thereof and described default data services to bandwidth numerical value;
The 4th judging unit is used for determining that whether second computing unit calculates the last bandwidth numerical value that obtains less than back one bandwidth numerical value, if less than, judge that detected data service actual available bandwidth is lower than the triggering bandwidth; Otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
In the embodiment of the invention described above; by being used of data service protection reverse and LCAS; and switch according to professional actual available bandwidth trigger protection; make system works more flexible; more can satisfy the bandwidth demand of different user to data service protection reverse; thereby avoided on the link that starts the LCAS function, actual available work bandwidth less than the user the situation that data service protection reverse can't be triggered under the situation of patient bandwidth.Can make the data service protection function can better meet client's needs like this.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a data service protection reverse triggering process is used for optical transport network, and described data service is multiplexed in the Virtual Channel of described optical transport network, and the actual bandwidth dynamic adjustable of described Virtual Channel is characterized in that, comprises the steps:
The triggering bandwidth that A, default trigger data service protection are switched;
Whether B, detection data service actual available bandwidth are lower than described triggering bandwidth, if testing result is for being lower than described triggering bandwidth, then the trigger data service protection is switched, otherwise, continue to detect.
2. data service protection reverse triggering process according to claim 1 is characterized in that, described Virtual Channel actual available bandwidth is regulated by Link Capacity Adjustment Scheme.
3. data service protection reverse triggering process according to claim 2 is characterized in that, the described triggering bandwidth of steps A is set to the Virtual Channel member number and the granularity thereof of data services;
Whether step B detection data service actual available bandwidth is lower than described triggering bandwidth comprises:
Whether the Virtual Channel granularity of B1, the actual data services of detection is identical with the Virtual Channel granularity that is provided with, if identical, execution in step B2; Otherwise execution in step B3;
B2, detect data services actual available Virtual Channel member number whether less than the Virtual Channel member number of the data services of described setting, if less than, execution in step B4 then, otherwise, execution in step B5;
B3, determine that whether last bandwidth numerical value is less than back one bandwidth numerical value after all converting the Virtual Channel member number of the data services of the actual available Virtual Channel member number of data services and granularity and described setting and granularity thereof to bandwidth numerical value, if less than, execution in step B4 then, otherwise, execution in step B5;
B4, the detected data service actual available bandwidth of judgement are lower than the triggering bandwidth;
B5, the detected data service actual available bandwidth of judgement are not less than the triggering bandwidth.
4. data service protection reverse triggering process according to claim 2 is characterized in that, the described triggering bandwidth of steps A is set to bandwidth numerical value;
Whether step B detection data service actual available bandwidth is lower than described triggering bandwidth comprises:
Determine that whether this bandwidth numerical value is less than described bandwidth numerical value after converting the actual available Virtual Channel member number of data services and granularity thereof to bandwidth numerical value, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
5. according to each described data service protection reverse triggering process of claim 1-4, it is characterized in that described data service protection reverse adopts Ethernet APS agreement or adopts the elastic packet ring protection turning protocol to carry out.
6. a data service protection reverse trigger equipment is used for optical transport network, and described data service is multiplexed in the Virtual Channel of described optical transport network, and the actual bandwidth dynamic adjustable of described Virtual Channel is characterized in that, comprising:
Checkout gear is used to detect the triggering bandwidth whether the data service actual available bandwidth is lower than the preset trigger data service protection reverse;
Switch trigger equipment, be used for testing result for the data service actual available bandwidth is lower than during described triggering bandwidth the trigger data service protection switch.
7. data service protection reverse trigger equipment according to claim 6 is characterized in that, described Virtual Channel actual available bandwidth is regulated by Link Capacity Adjustment Scheme.
8. data service protection reverse trigger equipment according to claim 7 is characterized in that, described triggering bandwidth is set to bandwidth numerical value;
Described checkout gear comprises:
First detecting unit is used to detect the actual available Virtual Channel member number and the granularity thereof of data services;
First computing unit is used for converting the detected reality of first detecting unit available Virtual Channel member number and granularity thereof to bandwidth numerical value;
First judging unit, be used for determining that whether first computing unit calculates the bandwidth numerical value that obtains less than described bandwidth numerical value, if less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth, otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
9. data service protection reverse trigger equipment according to claim 7 is characterized in that, described triggering bandwidth is set to the Virtual Channel member number and the granularity thereof of data services;
Described checkout gear comprises:
Second detecting unit is used to detect the actual available Virtual Channel member number and the granularity thereof of data services;
Second judging unit is used to judge whether the Virtual Channel member granularity of actual data services is identical with the Virtual Channel member granularity that is provided with;
The 3rd judging unit, be used in the second judgment unit judges result under the identical situation, whether the actual available Virtual Channel member number of determining the detected data services of second detecting unit is less than the Virtual Channel member number of the data services of described setting; If less than, judge that then detected data service actual available bandwidth is lower than the triggering bandwidth; Otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth;
Second computing unit, be used in the second judgment unit judges result under the situation inequality, all convert the Virtual Channel member number and the granularity thereof of the data services of the actual available Virtual Channel member number of data services and granularity and described setting to concrete bandwidth numerical value;
The 4th judging unit is used for determining that whether second computing unit calculates the last bandwidth numerical value that obtains less than back one bandwidth numerical value, if less than, judge that detected data service actual available bandwidth is lower than the triggering bandwidth; Otherwise, judge that detected data service actual available bandwidth is not less than the triggering bandwidth.
10. according to each described data service protection reverse trigger equipment of claim 6-9, it is characterized in that described data service protection reverse adopts Ethernet APS agreement or adopts the elastic packet ring protection turning protocol to carry out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100353131A CN100403686C (en) | 2005-06-17 | 2005-06-17 | Data service protection reverse triggering process and apparatus |
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| CNB2005100353131A CN100403686C (en) | 2005-06-17 | 2005-06-17 | Data service protection reverse triggering process and apparatus |
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| CN100403686C true CN100403686C (en) | 2008-07-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101222350B (en) * | 2007-01-12 | 2011-08-24 | 华为技术有限公司 | Protection switching decision method and system |
| CN101621448B (en) * | 2008-06-30 | 2012-09-05 | 华为技术有限公司 | Method, device and system for guaranteeing network bandwidth |
| CN101645797B (en) * | 2009-08-25 | 2011-04-13 | 华为技术有限公司 | Automatic protective switching method, equipment and system |
| CN102368730A (en) * | 2011-09-30 | 2012-03-07 | 烽火通信科技股份有限公司 | Method for realizing dynamically modifying channel bandwidth in packet transport network (PTN) |
| CN102546297B (en) * | 2011-12-31 | 2015-11-25 | 华为技术有限公司 | A kind of user bandwidth Notification Method and message accounting |
| CN103379007B (en) * | 2012-04-23 | 2018-06-19 | 中兴通讯股份有限公司 | A kind of Protection capacity of intersecting ring network determines method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000269973A (en) * | 1999-03-12 | 2000-09-29 | Nec Corp | Method and device for protecting communication by packet communication |
| CN1441577A (en) * | 2003-04-15 | 2003-09-10 | 北京润光泰力科技发展有限公司 | Reverse multiplexer circuit layer protecting and restoring method and device |
| US20040233843A1 (en) * | 2001-05-15 | 2004-11-25 | Barker Andrew James | Method and system for path protection in a communications network |
| CN1588882A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Protection rotation method for preset protective ring |
-
2005
- 2005-06-17 CN CNB2005100353131A patent/CN100403686C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000269973A (en) * | 1999-03-12 | 2000-09-29 | Nec Corp | Method and device for protecting communication by packet communication |
| US20040233843A1 (en) * | 2001-05-15 | 2004-11-25 | Barker Andrew James | Method and system for path protection in a communications network |
| CN1441577A (en) * | 2003-04-15 | 2003-09-10 | 北京润光泰力科技发展有限公司 | Reverse multiplexer circuit layer protecting and restoring method and device |
| CN1588882A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Protection rotation method for preset protective ring |
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