CN1960284A - Method for implementing stretch grouped data ring, and its service - Google Patents
Method for implementing stretch grouped data ring, and its service Download PDFInfo
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Abstract
The method comprises: deciding if residual bandwidth of the initial node of corresponding ClassB CIR service transmission path and the residual bandwidth of the intermediate nodes located in the transmission path meets the demand of the ClassB CIR service; if both residual bandwidths all meet the newly-added ClassB CIR service demand, the bandwidths satisfying the demand of ClassB CIR service are respectively reserved; bearing the ClassB CIR service on the reserved bandwidth. The invention ensures the ClassB CIR service can be performed on the resilient packet ring.
Description
Technical field
The present invention relates to a kind of communication equipment and communication means thereof, particularly relate to a kind of stretch grouped data ring and professional implementation method thereof.
Background technology
In communication network, stretch grouped data ring (RPR, Resilient Packet Ring) technology has the intellectuality of IP, the economy of Ethernet and high bandwidth efficiency, the reliability advantage of optical fiber ring network, being applicable to the networking of broadband IP metropolitan area network, is to handle the comprehensive transmission solution that multi-service transmits.The RPR technology can provide the carrier-class service with low cost, and reduces the transmission expense when similar synchronous digital hierarchy (SDH, Synchronous Digital Hierarchy) level network reliability is provided.
Consult Fig. 1, RPR is reciprocal dicyclo topological structure, is made of a plurality of nodes (Station) 101 that form cyclic loop.Each RPR node 101 all adopts 48 medium access controls (MAC, Medium Access Control) address of using in the Ethernet as address designation.Two rings are hereinafter referred to as 0 ring (Ringlet0) 102 and 1 ring (Ringlet1) 103.The loop section that two adjacent nodes are defined constitutes " section " on the ring.Every section light path on the ring is operated on the same speed, and dicyclo can both transmit data.The data transmission direction of 0 ring 102 of RPR is a clockwise direction, and the data transmission direction of 1 ring 103 is counterclockwise.
On the RPR ring, can carry three kinds of business: ClassA, ClassB and ClassC.Wherein ClassA need guarantee bandwidth and time delay; The ClassB business is divided into committed information rate (CIR again, CommitedInformation Rate) professional and exceed information rate (EIR, Excess Information Rate) business, wherein the CIR service needed guarantees bandwidth, EIR does not guarantee bandwidth, seize by the RPR fair algorithm as far as possible, identical with the ClassC business; The ClassC business does not guarantee bandwidth, seizes by the RPR fair algorithm as far as possible.Current Qos is as follows to the resource allocation methods of three kinds of business:
One, for the ClassA business, each node 101 distributes the ClassA bandwidth of oneself separately, and the ClassA bandwidth of each node 101 distribution is gone out by the RPR protocol broadcast simultaneously, tells the node 101 that does not distribute bandwidth.The node 101 of each unassigned bandwidth need be for realizing the professional bandwidth reserved of ClassA on the ring, and method is: all bandwidth of having distributed the node 101 of bandwidth to distribute are added up, reserve according to total bandwidth then.For example, on Fig. 1, suppose that whole RPR ring is the looped network of total bandwidth 10G, wherein node 1 distributes ClassA bandwidth 100M; Node 3 distributes ClassA bandwidth 200M; Node 4 distributes ClassA bandwidth 700M, and other node 1011 does not distribute the ClassA bandwidth.Then the bandwidth that will distribute separately of node 1, node 3, node 4 is gone out by the RPR protocol broadcast, and the node 101 of all unassigned bandwidth will carry out RSVP according to summation 1000M on the ring, and remaining bandwidth is that ClassB, ClassC bandwidth are used.
If the summation of the ClassA bandwidth that the node 101 of all unassigned bandwidth is reserved on the ring exceeds the rpr interface total bandwidth, then reserve failure, need alarm prompt.
More than, be on dicyclo, all to reserve to the reservation of ClassA service bandwidth, and ring go up each section and all must reserve, do not need to specify destination node.
Two,, then deduct ClassA bandwidth reserved remaining bandwidth afterwards and reserve according to the rpr interface total bandwidth for ClassB CIR business.For example, shown in above, the interface bandwidth of node 5 nodes own is 10G, because node 1, node 3, node 4 have distributed 100M, 200M and 700M bandwidth respectively for the ClassA business, so node 5 need be the professional 1G of reservation of a ClassA bandwidth.The bandwidth that can reserve for ClassB CIR on node 5 is that 10G deducts 1G like this, is the 9G bandwidth.
After knowing remaining bandwidth, ClassB CIR service bandwidth is carried out this locality reservation get final product.Described local the reservation is the bandwidth that is left to neighbor node 101 on dicyclo in advance, is not that each unassigned bandwidth node 101 all needs bandwidth reserved.
Three, ClassB EIR/ClassC service bandwidth does not guarantee, yet just not corresponding the distribution and future mechanism.
There is technological deficiency in method for the professional bandwidth reserved of ClassB CIR in the above-mentioned prior art:
Because each node is reserved ClassB CIR bandwidth separately, the bandwidth of reservation can not really be guaranteed.
For example, as Fig. 1 networking topology, node 1, node 3, node 4 are after distributing 100M, 200M and 700M bandwidth respectively, and the node 101 of all unassigned bandwidth all can carry out the reservation of ClassBCIR service bandwidth according to 9G on the ring.Suppose that node 1 is reserved ClassB CIR bandwidth 4G, node 2 is reserved ClassBCIR bandwidth 8G.And node 1 has 4G ClassB flow to node 3 (node 1-＞node 2-＞node 3), and node 2 has 8G ClassB flow to node 4 (node 2-＞node 3-＞node 4), then just must have the 12G bandwidth could satisfy the flow of 12G on 2 sections of nodes.But only surplus 9G bandwidth on 2 sections of the nodes can not satisfy the traffic demand of 12G, causes the flow conflict, and the ClassB bandwidth can not guarantee.
In addition, the bandwidth of carrying ClassB CIR business under the situation of link occurs fault, possible service disconnection.
For example, as Fig. 1 networking topology, node 1, node 3, node 4 are after distributing 100M, 200M and 700M bandwidth respectively, and the node 101 of all unassigned bandwidth all can carry out the distribution of ClassBCIR service bandwidth according to 9G on the ring.Suppose that node 1 is reserved ClassB CIR bandwidth 4G, node 2 nodes are reserved ClassBCIR bandwidth 8G.If node 1 has the 4G flow to node 6 (node 1-＞node 6), node 2 flows are constant, 4 (node 2-＞node 3-＞node 4) still from node 2 to node, and the not conflict of flow this moment, the ClassB bandwidth can be guaranteed.
But, if the link occurs fault between node 1 and the node 6, then node 1 to the flow of node 6 is node 1-＞node 2-＞node 3-＞node 4-＞node 5-＞node 6, in this case, the ClassB flow clashes on the ring, and ClassB CIR bandwidth can't be guaranteed.
Summary of the invention
The technical problem to be solved in the present invention is that the ClassBCIR business that prior art is carried out on stretch grouped data ring may be difficult to realize that stability is not enough.
The technical problem to be solved in the present invention is that the stretch grouped data ring running of prior art carrying ClassB CIR business is unstable.
For solving above-mentioned first technical problem, the objective of the invention is to be achieved through the following technical solutions: a kind of implementation method of stretch grouped data ring business is provided, comprises step: whether its remaining bandwidth of the intermediate node that start node and transmission path comprised of judging corresponding ClassB CIR service transmission path satisfies described newly-increased ClassB CIR business demand; Remaining bandwidth at described start node and whole intermediate nodes all satisfies under the described newly-increased ClassB CIR business demand situation, reserves the bandwidth that satisfies described newly-increased ClassB CIR business demand respectively; Carrying ClassB CIR business on the bandwidth of described reservation.
Preferably, in step: before judging whether remaining bandwidth satisfies described newly-increased ClassB CIR business demand, comprise step:
The start node of corresponding newly-increased ClassB CIR service transmission path is destination node preassignment ClassBCIR bandwidth;
Calculate the remaining bandwidth of the intermediate node that described start node and transmission path comprise.
Preferably, the step of the remaining bandwidth of the intermediate node that comprised of described calculating start node and transmission path is specifically:
All are added up through bandwidth reserved of professional preassignment of the ClassB CIR of whole transmission paths of an intermediate node in described start nodes or the transmission path/and ClassA bandwidth reserved, and try to achieve the poor of ring total bandwidth and described bandwidth totalling.
Preferably, described intermediate node is: each node on dicyclo or the monocycle transmission path.
Preferably, described intermediate node is meant all nodes except that destination node on the dicyclo path.
Preferably, after preassignment ClassB CIR bandwidth is given the start node of this transmission path, further comprise step: described preassignment ClassB CIR bandwidth information is spread to ring by the stretch grouped data ring agreement go up all nodes.
Preferably, described preassignment ClassB CIR bandwidth, the step of calculating remaining bandwidth and bandwidth reserved are finished at server on the respective nodes or outside ring.
For solving above-mentioned second technical problem, the objective of the invention is to be achieved through the following technical solutions: a kind of stretch grouped data ring is provided, comprise a plurality of nodes on transmission loop wire and the loop wire, corresponding to a newly-increased ClassB CIR business, described a plurality of node is divided into the start node at ClassB CIR service transmission path two ends, intermediate node between destination node and start node and the destination node, judging that its remaining bandwidth of intermediate node that start node and transmission path comprised satisfies under the described newly-increased ClassB CIR business demand situation, described start node and intermediate node are reserved with described preallocated ClassB CIR bandwidth, and described newly-increased ClassB CIR business is carried on the bandwidth of described reservation.
Preferably, its remaining bandwidth of intermediate node that described judgement start node and transmission path are comprised satisfies described newly-increased ClassB CIR business demand specifically: all are added up through bandwidth reserved of professional preassignment of the ClassB CIR of whole transmission paths of described start nodes and intermediate node/and ClassA bandwidth reserved, judge that the ring total bandwidth and the difference of described bandwidth totalling are the demand whether remaining bandwidth satisfies described newly-increased ClassBCIR business.
Preferably, described intermediate node is: each node on dicyclo or the monocycle transmission path.
Preferably, described start node further comprises the allocated bandwidth unit, be used to destination node preassignment ClassB CIR bandwidth on described start node, and described start node spreads described preassignment ClassBCIR bandwidth information to encircling upward all nodes by the stretch grouped data ring agreement.
Preferably, on node, further comprise the bandwidth calculation unit, be used for all are added up through bandwidth reserved of the professional preassignment of the ClassB CIR of whole transmission paths of described start node and intermediate node/and ClassA bandwidth reserved, judge that the ring total bandwidth and the difference of described bandwidth totalling are the demand whether remaining bandwidth satisfies described newly-increased ClassB CIR business.
Preferably, comprise that further bandwidth is provided with the unit, be used for preassignment ClassB CIR bandwidth and reserve described preallocated ClassB CIR bandwidth at send a notice described start node and intermediate node of the conditions of demand that described remaining bandwidth satisfies described newly-increased ClassB CIR business.
More than first technical scheme as can be seen, because the present invention is before bandwidth reserved on the start node is given new ClassB CIR business, all node carries out the remaining bandwidth judgement on the transmission path except that destination node, reserve corresponding bandwidth be sure oing that these node remaining bandwidths can both satisfy under the new ClassB CIR service conditions, therefore guarantee that ClassB CIR is professional smoothly, stablize and carry out, avoid the flow collision problem that node may cause owing to the bandwidth of distributing is not enough in the prior art.
More than second technical scheme as can be seen, because the present invention is provided with allocated bandwidth unit and bandwidth calculation unit on node, can be before bandwidth reserved on the start node of ClassB CIR service transmission path be given new ClassB CIR business, utilizing bandwidth calculation unit whole nodes on the transmission path except that destination node to carry out remaining bandwidth judges, utilize the allocated bandwidth unit to reserve corresponding bandwidth under the new ClassB CIR service conditions be sure oing that these node remaining bandwidths can both satisfy, therefore guarantee that ClassB CIR is smoothly professional, the stable development avoids node in the prior art because the flow collision problem that the bandwidth of distributing may cause inadequately.
Description of drawings
Fig. 1 is the structural representation of prior art stretch grouped data ring;
Fig. 2 is the structural representation of stretch grouped data ring first execution mode of the present invention;
Fig. 3 is the part-structure schematic diagram of stretch grouped data ring among Fig. 2;
Fig. 4 is the structural representation of stretch grouped data ring second execution mode of the present invention;
Fig. 5 is the flow chart of the implementation method of stretch grouped data ring business of the present invention.
Embodiment
Basic principle of the present invention is: to from this node, go to the ClassB CIR bandwidth of various objectives node and distribute respectively on the RPR node; By modes such as agreement diffusion or concentrated distribution, on other nodes except that destination node or other equipment, obtain to encircle all allocated bandwidth requirements then through the ClassB CIR business of described other nodes or other equipment; Carry out bandwidth calculation, each ClassB CIR bandwidth is added up, if remaining bandwidth enough satisfies newly-increased ClassB CIR business need, allocated bandwidth success so, all ClassB CIR bandwidth can be guaranteed; Otherwise the allocated bandwidth failure has portion C lassB CIR bandwidth not to be guaranteed.
In short, the present invention has earlier calculated remaining bandwidth on the node in ClassB CIR service transmission path, when remaining bandwidth satisfies new ClassB CIR business and carries out, then carries out described business.
Corresponding above-mentioned principle the invention provides a basic implementation method, comprises step:
One, whether its remaining bandwidth of the intermediate node that start node and transmission path comprised of judging corresponding ClassB CIR service transmission path satisfies described newly-increased ClassB CIR business demand;
Two, the remaining bandwidth at described start node and whole intermediate nodes all satisfies under the described newly-increased ClassBCIR business demand situation, reserves the bandwidth that satisfies described newly-increased ClassB CIR business demand respectively;
Three, carrying ClassB CIR business on described bandwidth reserved.
Step 1 is to judge whether remaining bandwidth satisfies described newly-increased ClassB CIR business demand, as follow-up be the basis of ClassB CIR traffic assignments bandwidth, need the amount of bandwidth of learning that all have taken or be about to take on this node through all business of the intermediate nodes that start node and transmission path comprised on concrete.Step 2 is the Added Business bandwidth reserved after having judged.Step 3 is a carrying ClassB CIR business on described bandwidth reserved.
Because before giving new ClassB CIR business at bandwidth reserved on the start node, all node carries out the remaining bandwidth judgement on the transmission path except that destination node, reserve corresponding bandwidth be sure oing that these node remaining bandwidths can both satisfy under the new ClassB CIR service conditions, therefore guarantee that ClassB CIR is professional smoothly, stablize and carry out, avoid the flow collision problem that node may cause owing to the bandwidth of distributing is not enough in the prior art.
Below in conjunction with execution mode and accompanying drawing, describe the present invention.
Consult Fig. 2, the present invention provides stretch grouped data ring first execution mode earlier, and it comprises a plurality of nodes 210 on transmission loop wire 220,230 and the loop wire, and the node 210 in the present embodiment comprises node 1,2,3,4,5,6 totally 6 nodes.Transmission loop wire 220 is 0 rings, and transmission loop wire 230 is 1 rings.Each stretch grouped data node 201 all adopts 48 Media Access Control Address using in the Ethernet as address designation.Every section light path on the ring is operated on the same speed, and dicyclo can both transmit data.The data transmission direction of 0 ring 220 is a clockwise direction, and the data transmission direction of 1 ring 230 is counterclockwise.
Corresponding to each ClassB CIR business, described a plurality of nodes 210 can be divided into the start node and the destination node at ClassB CIR service transmission path two ends, and the intermediate node of start node and destination node.On start node, include allocated bandwidth unit 211 and bandwidth calculation unit 212, on intermediate node, include bandwidth calculation unit 212.
When realizing that newly-increased ClassB CIR is professional, corresponding described start node, described allocated bandwidth unit 211 are presorted for destination node is furnished with ClassB CIR bandwidth, and start node is gone out this preassignment bandwidth information subsequently by the PRR protocol broadcast.
Described bandwidth calculation unit 212 is used for all through the professional preassignment of the ClassB CIR of whole transmission paths of described start node or transmission path one intermediate node/bandwidth reserved adds up, and the professional preassignment bandwidth information of the ClassB CIR of described whole transmission paths is from above-mentioned PRR protocol broadcast message.
Preassignment/bandwidth reserved adds the General Logistics Department respectively the start node in every transmission paths and each intermediate node being carried out in described bandwidth calculation unit 212, judge that its result does not exceed under the difference situation of ring total bandwidth and a described intermediate node ClassA bandwidth reserved, described start node and intermediate node are reserved with at least and the identical bandwidth of described start node preassignment ClassB CIR bandwidth.
Above-mentioned saying also can be described like this: bandwidth reserved (comprising the professional and professional shared bandwidth of ClassA of ClassB CIR) adds the General Logistics Department carrying out to the start node in every transmission paths and each intermediate node respectively in described bandwidth calculation unit 212, the difference of judging the totalling of ring total bandwidth and described bandwidth reserved is that remaining bandwidth satisfies under the described newly-increased ClassB CIR service conditions, and described start node and intermediate node are reserved with at least and the identical bandwidth of described start node preassignment ClassB CIR bandwidth.The totalling of described bandwidth reserved does not comprise the professional preassignment bandwidth of described newly-increased ClassB CIR.
Generally speaking, be to need to judge whether its remaining bandwidth of the intermediate node that start node and transmission path comprised of corresponding ClassB CIR service transmission path satisfies described newly-increased ClassB CIR business demand.
Can be in there be dicyclo in ClassB CIR service transmission path, be that start node can transmit data in the destination node by 0 ring and 1 ring, to guarantee that when a ring can not transmit data, another encircled endure, assurance ClassB CIR business is carried out smoothly.But above-mentioned total amount of bandwidth is calculated and reserve and all carry out according to monocycle, promptly bandwidth add up be in the same transmission direction all the bandwidth that takies of the business of transmission paths add up.
For ease of understanding, be illustrated for example here.Consult Fig. 3 together, node 1,6,5th, three nodes among Fig. 2 in the stretch grouped data ring, described stretch grouped data ring is the 10G looped network.Node 1,6,5 is respectively start node, intermediate node, the destination node on a certain ClassB CIR service transmission path 201.This ClassB CIR business need is distributed the 100M bandwidth on node 1, but still unallocated; Two other ClassB CIR service transmission path 202,203 is arranged in addition through node 6 and node 5, the ClassB CIR bandwidth that their start node distributes is respectively 200M and 700M; Reserved the 1000M bandwidth on a certain in addition ClassA service needed node 1,6,5.
According to the present invention, when the ClassB CIR that realizes this unassigned bandwidth is professional, corresponding described start node 1, described allocated bandwidth unit is destination node 5 first preassignment ClassB CIR bandwidth 100M, and start node 1 is gone out the information of this preassignment bandwidth 100M subsequently by the PRR protocol broadcast.
Subsequently, the bandwidth calculation unit 212 on start node 1 and the intermediate node 6 respectively with all through the professional preassignment of the ClassB CIR of whole transmission paths of described start nodes 1 or intermediate node 6/bandwidth reserved adds up.Here, all transmission path is a transmission path 201,202,203, and bandwidth reserved is the 1000M bandwidth of reserving, so the bandwidth of start node 1 or intermediate node 6 totalling all is: 100M+200M+700+1000M=2000M.And described stretch grouped data ring is the 10G looped network, and therefore, start node 1 or intermediate node 6 remaining bandwidth are exactly: 10G-2000M=8G, before on start node 1 preallocated 100M bandwidth less than remaining bandwidth 8G.
Preassignment/bandwidth reserved adds the General Logistics Department respectively the start node in every transmission paths 1 and each intermediate node-be node 6 being carried out in described bandwidth calculation unit 212, judge its as a result 2G do not exceed the difference 8G of ring total bandwidth and a described intermediate node ClassA bandwidth reserved, so on start node 1 and intermediate node 6, all reserve at least and the identical bandwidth of described start node preassignment ClassB CIR bandwidth: 100M at least, the RSVP success can be carried ClassB CIR business described the reservation on the successful bandwidth.
In fact, can under different situations, can carry out smoothly, can on the dicyclo transmission path, carry out independently bandwidth reserved step,, still can carry out transfer of data by another ring so that when on a ring, transmission fault occurring for guaranteeing ClassB CIR business.
From as can be seen above, owing on the node allocated bandwidth unit and bandwidth calculation unit are set, can be before bandwidth reserved on the start node of ClassB CIR service transmission path be given new ClassB CIR business, utilizing bandwidth calculation unit whole nodes on the transmission path except that destination node to carry out remaining bandwidth judges, utilize the allocated bandwidth unit to reserve corresponding bandwidth under the new ClassB CIR service conditions be sure oing that these node remaining bandwidths can both satisfy, therefore guarantee that ClassB CIR is smoothly professional, the stable development avoids node in the prior art because the flow collision problem that the bandwidth of distributing may cause inadequately.
Consult Fig. 4, the present invention also provides stretch grouped data ring second execution mode, described execution mode and the above-mentioned first execution mode difference are: the preassignment of ClassB CIR bandwidth and remaining bandwidth calculate and adopt centralized distribution pattern, comprise also outside stretch grouped data ring that promptly bandwidth is provided with unit 404, be used to the professional preassignment ClassB of every ClassB CIR CIR bandwidth, with all start node preassignment through whole transmission paths of the start node of these service transmission paths or intermediate node/bandwidth reserved adds up, draw remaining bandwidth, and notify described start node and intermediate node to reserve at least and the identical bandwidth of described preassignment ClassBCIR bandwidth.Owing to adopt bandwidth that unit 404 is set, so do not need configured bandwidth allocation units or bandwidth calculation unit on the node 401.But because function class seemingly, therefore can realize the same technique effect, guarantee that promptly ClassB CIR can carry out smoothly.
Consult Fig. 5, the present invention provides a kind of implementation method of stretch grouped data ring business again, comprises step:
501, on the start node of newly-increased ClassB CIR service transmission path, be destination node preassignment ClassB CIR bandwidth; And described preassignment ClassB CIR bandwidth information spread to ring by the stretch grouped data ring agreement go up all nodes;
502, calculate the remaining bandwidth of the intermediate node that described start node and transmission path comprised: specifically be that bandwidth reserved of the professional preassignment of ClassB CIR of whole transmission paths of all intermediate nodes that comprise through described start nodes or transmission path/and ClassA bandwidth reserved are added up; Described intermediate node is each node on dicyclo or the monocycle transmission path, also promptly from the data of start node, can pass to by two transmission paths on the dicyclo in the same destination node;
503, try to achieve poor that ring total bandwidth and described bandwidth add up, satisfy under the situation that described newly-increased ClassB CIR business carries out at the remaining bandwidth of the intermediate node that start node and transmission path comprised, described start node and intermediate node are reserved at least and the identical bandwidth of described start node preassignment ClassB CIR bandwidth;
504, carrying ClassB CIR business on the bandwidth of described reservation.
More than, step 501 is to be the professional preassignment bandwidth of new ClassB CIR, as subsequent calculations node remaining bandwidth whether greater than the basis of above-mentioned preassignment bandwidth.Step 502 item is the total amount of bandwidth that is calculated as the preassignment/distribution/reservation on described certain node of whole business.Step 503 item is that the ring total bandwidth deducts the remaining bandwidth that obtains after the total amount of bandwidth of described preassignment/distribution/reservation, and judge whether remaining bandwidth satisfies ClassB CIR business (being the preassignment ClassB CIR bandwidth of the step 501) requirement of newly carrying out, if remaining bandwidth is more than or equal to described preassignment ClassB CIR bandwidth, then be the professional bandwidth reserved of new ClassB CIR, and on described bandwidth reserved, carry ClassB CIR business in step 504.
Because before bandwidth reserved on the start node is given new ClassB CIR business, all node carries out the remaining bandwidth judgement on the transmission path except that destination node, reserve corresponding bandwidth be sure oing that these node remaining bandwidths can both satisfy under the new ClassB CIR service conditions, therefore guarantee that ClassB CIR is professional smoothly, stablize and carry out, avoid the flow collision problem that node may cause owing to the bandwidth of distributing is not enough in the prior art.
Above-mentioned bandwidth preassignment and calculating are to carry out on node, in another embodiment, the mode of adopt to concentrate distributing is distributed ClassB CIR bandwidth, is added up and notify described start node and intermediate node to reserve at least and the identical bandwidth of described preassignment ClassB CIR bandwidth bandwidth reserved of all start node preassignment through whole transmission paths of these start nodes or intermediate node/and ClassA bandwidth reserved.Specifically be to set up a bandwidth unit is set, be responsible for aforesaid operations specially.
More than a kind of stretch grouped data ring provided by the present invention and professional implementation method thereof are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. the implementation method of a stretch grouped data ring business is characterized in that, comprises step:
Whether its remaining bandwidth of the intermediate node that start node and transmission path comprised of judging corresponding ClassB CIR service transmission path satisfies described newly-increased ClassB CIR business demand;
Remaining bandwidth at described start node and whole intermediate nodes all satisfies under the described newly-increased ClassB CIR business demand situation, reserves the bandwidth that satisfies described newly-increased ClassB CIR business demand respectively;
Carrying ClassB CIR business on the bandwidth of described reservation.
2. the implementation method of stretch grouped data ring business according to claim 1 is characterized in that, in step: before judging whether remaining bandwidth satisfies described newly-increased ClassB CIR business demand, comprise step:
The start node of corresponding newly-increased ClassB CIR service transmission path is destination node preassignment ClassBCIR bandwidth;
Calculate the remaining bandwidth of the intermediate node that described start node and transmission path comprise.
3. the implementation method of stretch grouped data ring business according to claim 2 is characterized in that, the step of the remaining bandwidth of the intermediate node that described calculating start node and transmission path are comprised specifically:
All are added up through bandwidth reserved of professional preassignment of the ClassB CIR of whole transmission paths of an intermediate node in described start nodes or the transmission path/and ClassA bandwidth reserved, and try to achieve the poor of ring total bandwidth and described bandwidth totalling.
4. the implementation method of stretch grouped data ring business according to claim 1 is characterized in that, described intermediate node is: each node on dicyclo or the monocycle transmission path.
5. the implementation method of stretch grouped data ring business according to claim 1 is characterized in that, described intermediate node is meant all nodes except that destination node on the dicyclo path.
6. according to the implementation method of each described stretch grouped data ring business of claim 1 to 5, it is characterized in that, after preassignment ClassB CIR bandwidth is given the start node of this transmission path, further comprise step: described preassignment ClassB CIR bandwidth information is spread to ring by the stretch grouped data ring agreement go up all nodes.
7. according to the implementation method of each described stretch grouped data ring business of claim 1 to 5, it is characterized in that described preassignment ClassB CIR bandwidth, the step of calculating remaining bandwidth and bandwidth reserved are finished at server on the respective nodes or outside ring.
8. stretch grouped data ring, comprise a plurality of nodes on transmission loop wire and the loop wire, corresponding to a newly-increased ClassB CIR business, described a plurality of node is divided into the start node at ClassB CIR service transmission path two ends, intermediate node between destination node and start node and the destination node, judging that its remaining bandwidth of intermediate node that start node and transmission path comprised satisfies under the described newly-increased ClassB CIR business demand situation, described start node and intermediate node are reserved with described preallocated ClassB CIR bandwidth, and described newly-increased ClassB CIR business is carried on the bandwidth of described reservation.
9. stretch grouped data ring according to claim 8, it is characterized in that, its remaining bandwidth of intermediate node that described judgement start node and transmission path are comprised satisfies described newly-increased ClassB CIR business demand specifically: all are added up through bandwidth reserved of professional preassignment of the ClassB CIR of whole transmission paths of described start nodes and intermediate node/and ClassA bandwidth reserved, judge that the ring total bandwidth and the difference of described bandwidth totalling are the demand whether remaining bandwidth satisfies described newly-increased ClassB CIR business.
10. stretch grouped data ring according to claim 8 is characterized in that, described intermediate node is: each node on dicyclo or the monocycle transmission path.
11. according to Claim 8 to 10 each described stretch grouped data rings, it is characterized in that, described start node further comprises the allocated bandwidth unit, be used to destination node preassignment ClassB CIR bandwidth on described start node, and described start node spreads described preassignment ClassB CIR bandwidth information to encircling upward all nodes by the stretch grouped data ring agreement.
12. stretch grouped data ring according to claim 11, it is characterized in that, on node, further comprise the bandwidth calculation unit, be used for all are added up through bandwidth reserved of the professional preassignment of the ClassB CIR of whole transmission paths of described start node and intermediate node/and ClassA bandwidth reserved, judge that the ring total bandwidth and the difference of described bandwidth totalling are the demand whether remaining bandwidth satisfies described newly-increased ClassB CIR business.
13. according to Claim 8 to 10 each described stretch grouped data rings, it is characterized in that, comprise that further bandwidth is provided with the unit, be used for preassignment ClassB CIR bandwidth and reserve described preallocated ClassB CIR bandwidth at send a notice described start node and intermediate node of the conditions of demand that described remaining bandwidth satisfies described newly-increased ClassB CIR business.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107368A1 (en) * | 2014-12-31 | 2016-07-07 | 华为技术有限公司 | Method for determining service bandwidth in ip network, and network device |
| CN111327542A (en) * | 2020-03-31 | 2020-06-23 | 新华三信息安全技术有限公司 | Bandwidth reservation method and device |
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2006
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107368A1 (en) * | 2014-12-31 | 2016-07-07 | 华为技术有限公司 | Method for determining service bandwidth in ip network, and network device |
| CN105812286A (en) * | 2014-12-31 | 2016-07-27 | 华为技术有限公司 | Service bandwidth determining method in IP network and network device |
| CN111327542A (en) * | 2020-03-31 | 2020-06-23 | 新华三信息安全技术有限公司 | Bandwidth reservation method and device |
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