CN102148693B - Shared granularity method, node and shared granularity system - Google Patents
Shared granularity method, node and shared granularity system Download PDFInfo
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- CN102148693B CN102148693B CN201010111973.4A CN201010111973A CN102148693B CN 102148693 B CN102148693 B CN 102148693B CN 201010111973 A CN201010111973 A CN 201010111973A CN 102148693 B CN102148693 B CN 102148693B
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Abstract
The invention provides a kind of shared granularity method, node and shared granularity system.Relate to ring network structure network; Solve that data processing overheads in shared granularity process is large, reserved resource waste and the low problem of bandwidth reuse rate.The method comprises: the end node of shared link, when detecting that shared link breaks down, obtains the priority of current at least one available protection channel; From described at least one protection channel, one that selects priority the highest as service protection passage; Business datum on current shared link is switched on described service protection passage and transmits.Technical scheme provided by the invention is applicable to ring network structure network.
Description
Technical field
The present invention relates to ring network structure network, particularly relate to a kind of shared granularity method, node and shared granularity system.
Background technology
Relative to other networking structures, node number is less on the one hand to adopt ring network structure to carry out networking, realizes simpler; looped network protection can be adopted on the other hand; strengthen the reliability of network, so in current network, ring network structure obtains large-scale application.
Looped network for MPLS can carry out bypass protection; be mainly used in preventing disparate networks to be connected in series gateway device and become Single Point of Faliure because of unexpected inefficacy (as hardware fault, power failure, software deadlock etc.); or provide favourable help when these gateway devices carry out upgrade maintenance; avoid because network switches the time delays and network O&M difficult management brought by hand, become the indispensable solution of network high availability operational support.
In the process that above-mentioned use bypass resist technology is protected looped network, there are the following problems:
A shared link may be there is between two or more looped network and (namely connect two or more rings; and by one section of link of this multiple ring unity of possession); and each looped network has all carried out bypass protection to this shared link; be this shared link and be configured with a protection channel; for when this shared link breaks down, the business datum on it is switched in protection channel and transmits.When the shared link of multiple looped network breaks down; multiple looped network all performs and switches; cause same business datum to be switched in many protection channels to transmit; business datum recipient repeats to receive business datum by many protection channels; add the data processing overheads of business datum recipient; waste reserved resource, reduce bandwidth availability ratio.
Summary of the invention
The invention provides a kind of shared granularity method, node and shared granularity system, solve that data processing overheads in shared granularity process is large, reserved resource waste and the low problem of bandwidth reuse rate.
A kind of shared granularity method, comprising:
The end node of shared link, when detecting that shared link breaks down, obtains the priority of current at least one available protection channel;
From described at least one protection channel, one that selects priority the highest as service protection passage;
Business datum on current shared link is switched on described service protection passage and transmits.
Further, the end node of described shared link, when detecting that shared link breaks down, before obtaining the step of the priority of current at least one available protection channel, also comprises:
For at least one protection channel of described shared link arranges priority respectively.
Further, the end node of described shared link, when detecting that shared link breaks down, before obtaining the step of the priority of current at least one available protection channel, also comprises:
Whether described end node detects described shared link and breaks down.
Further, the priority of the current at least one available protection channel of described acquisition comprises:
Judge whether at least one protection channel of described shared link normally works;
Obtain the normal protection channel of work and the priority of each protection channel.
Further, described business datum on current shared link is switched to described service protection passage transmits be specially:
According to the encapsulation format of described service protection passage, service message is encapsulated, by described service protection passage to the service message after the peer node transmission encapsulation of described shared link; Or,
By the service message that shared link peer node described in described service protection channel reception sends, according to the encapsulation format of this service protection passage, decapsulation is carried out to described service message.
Present invention also offers a kind of node, comprising:
Protection channel selects module, for when detecting that shared link breaks down, obtains the priority of current at least one available protection channel, and from described at least one protection channel, one that selects priority the highest as service protection passage;
Switching module, transmitting for the business datum on current shared link being switched on described service protection passage.
Further, above-mentioned node also comprises:
Protection channel configuration module, arranges priority respectively at least one protection channel for described shared link;
Whether fault detection module, break down for detecting described shared link.
Present invention also offers a kind of shared granularity system, comprise first node and Section Point, described first node and Section Point are respectively the end node of shared link, between described first node and Section Point, be also equipped with at least one protection channel;
Described first node, for when detecting that shared link breaks down, obtains the priority of current at least one available protection channel;
From described at least one protection channel, one that selects priority the highest as service protection passage;
Business datum on current shared link is switched on described service protection passage and transmits.
Further, described first node, also arranges priority respectively at least one protection channel for described shared link.
Further, whether described first node, also break down for detecting described shared link.
The embodiment provides a kind of shared granularity method, node and shared granularity system, by the end node of shared link, fault detect is carried out to shared link, and when detecting that shared link breaks down, according to current can by the priority of at least one protection channel, one that selects priority the highest as service protection passage, business datum on the shared link of fault is switched on this service protection passage and transmits, avoid when shared link breaks down, the protection channel of multiple looped network repeats service data transmission, solve data processing overheads in shared granularity process large, reserved resource waste and the low problem of bandwidth reuse rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention applied environment;
The flow chart of a kind of shared granularity method that Fig. 2 provides for embodiments of the invention;
The structural representation of a kind of node that Fig. 3 provides for embodiments of the invention;
The structural representation of a kind of node that Fig. 4 provides for another embodiment of the present invention;
The structural representation of a kind of shared granularity system that Fig. 5 provides for embodiments of the invention.
Embodiment
Transannular structure is there is in looped network; as shown in Figure 1; a shared link is there is between two looped network Ring1 and Ring2; shared link with node 1 and node 2 for end node; the protection channel of this shared link is all there is in Ring1 and Ring2; to send business datum from node 1 to node 2; then in Ring1, the routed path of the protection channel of this shared channel is " node 1-node 5-node 4-node 3-node 2 ", and in Ring2, the routed path of the protection channel of this shared channel is " node 1-node 9-node 8-node 7-node 6-node 2 ".When shared link breaks down, because two looped networks all perform respective pretection switch, cause node 2 to repeat to receive same business datum by different protection channels, add the processing load of node 2 on the one hand, the out of order of business can be brought; On the other hand, business datum repeats twice transmission, occupies double bandwidth resources, causes the waste of bandwidth resources.
In order to solve the problem, The embodiment provides a kind of shared granularity method, for the network configuration shown in Fig. 1, use the method to complete to the process of shared link troubleshooting as shown in Figure 2, comprising:
Step 201, priority is set at least one protection channel of described shared link;
In this step, first on two end nodes 1 and node 2 of shared link, respectively along Ring1 and Ring2 direction, configure two protection channels, for node 1, routed path is " node 1-node 5-node 4-node 3-node 2 ", and in Ring2, the routed path of the protection channel of this shared channel is " node 1-node 9-node 8-node 7-node 6-node 2 "; And for node 2, routed path is " node 2-node 3-node 4-node 5-node 1 ", in Ring2, the routed path of the protection channel of this shared channel is " node 2-node 6-node 7-node 8-node 9-node 1 ".Set higher along the priority of the protection channel of Ring1.
Whether step 202, end node detect described shared link and break down;
In the embodiment of the present invention, detect shared link by the method periodically sending fault detect message and whether break down.
Such as; between two end nodes 1 and node 2 of shared link; periodically send fault detect message; when node 1 or node 2 in certain time length (as in 3.5 doubling times) do not receive the detection messages that peer node sends over; then illustrate that this shared link exists fault, start the process data that shared link transmits being switched to protection channel.
The end node of step 203, shared link, when detecting that shared link breaks down, obtains the priority of current at least one available protection channel;
In this step, when needs carry out pretection switch, first need to determine that whether each protection channel is normal, obtain the priority of the protection channel of normal work, as the foundation selecting service protection passage.
Step 204, from described at least one protection channel, select the highest one of priority as service protection passage;
In this step; priority according to original set protection channel carrys out the higher protection channel of selected priority; the i.e. protection channel (node 1-node 5-node 4-node 3-node 2 or node 2-node 3-node 4-node 5-node 1) of Ring1, as service protection passage.
Step 205, the business datum on current shared link is switched on described service protection passage and transmits;
In this step; after selected good protection channel; pretection switch is carried out to the original business through this shared link; as: for the business being sent to node 9 from node 3; because its original service path (node 3-node 2-node 1-node 9) breaks down, then carry out path switching at the upstream node 2 of this business.At service protection passage (node 2-node 3-node 4-node 5-node 1) under normal circumstances; then start this service protection passage to protect; this service message is encapsulated in this service protection passage; and after being sent to the downstream node 1 of this business; continue according to original operating path direction (1-9), be sent in destination node 9.
When the protection channel that priority is higher cannot normally work; then by protection channel (node 2-node 6-node 7-node 8-node 9-node 1) that priority is lower; after this business is sent to node 1; after again outer layer tunnel label being ejected; continue according to original operating path (1-9), be sent in destination node 9.
It should be noted that, embodiments of the invention are only described for the shared link of two looped networks, and for the shared link of two or more ring network structure, the shared granularity method that the embodiment of the present invention provides is applicable equally, is not construed as limiting this.
Embodiments of the invention additionally provide a kind of node, and its structure as shown in Figure 3, comprising:
Protection channel selects module 301, for when detecting that shared link breaks down, obtains the priority of current at least one available protection channel, and from described at least one protection channel, one that selects priority the highest as service protection passage;
Switching module 302, transmitting for the business datum on current shared link being switched on described service protection passage.
Further, above-mentioned node as shown in Figure 4, also comprises:
Protection channel configuration module 303, arranges priority at least one protection channel for described shared link;
Whether fault detection module 304, break down for detecting described shared link.
Embodiments of the invention additionally provide a kind of shared granularity system, its structure as shown in Figure 5, comprise first node 501 and Section Point 502, described first node 501 and Section Point 502 are respectively the end node of shared link, between first node 501 and Section Point 502, be also equipped with at least one protection channel;
Described first node 501, for when detecting that shared link breaks down, obtains the priority of current at least one available protection channel;
From described at least one protection channel, one that selects priority the highest as service protection passage;
Business datum on current shared link is switched on described service protection passage and transmits.
Further, described first node 501, also arranges priority at least one protection channel for described shared link.
Further, whether described first node 501, also break down for detecting described shared link.
Above-mentioned node and shared granularity system, can combine with a kind of shared granularity method that embodiments of the invention provide, by the end node of shared link, fault detect is carried out to shared link, and when detecting that shared link breaks down, according to current can by the priority of at least one protection channel, one that selects priority the highest as service protection passage, business datum on the shared link of fault is switched on this service protection passage and transmits, avoid when shared link breaks down, the protection channel of multiple looped network repeats service data transmission, solve data processing overheads in shared granularity process large, reserved resource waste and the low problem of bandwidth reuse rate.
One of ordinary skill in the art will appreciate that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range described in claim.
Claims (10)
1. a shared granularity method, is characterized in that, is applied to MPLS looped network and carries out bypass protection, comprising:
The end node of shared link, when detecting that shared link breaks down, obtains the priority of current at least one available protection channel; Described shared link refers to and connects two or more rings and by one section of link of this multiple ring unity of possession;
From described at least one protection channel, one that selects priority the highest as service protection passage;
Business datum on current shared link is switched on described service protection passage and transmits.
2. shared granularity method according to claim 1, is characterized in that, the end node of described shared link, when detecting that shared link breaks down, before obtaining the step of the priority of current at least one available protection channel, also comprises:
For at least one protection channel of described shared link arranges priority respectively.
3. shared granularity method according to claim 1, is characterized in that, the end node of described shared link, when detecting that shared link breaks down, before obtaining the step of the priority of current at least one available protection channel, also comprises:
Whether described end node detects described shared link and breaks down.
4. shared granularity method according to claim 1, is characterized in that, the priority of the current at least one available protection channel of described acquisition comprises:
Judge whether at least one protection channel of described shared link normally works;
Obtain the normal protection channel of work and the priority of each protection channel.
5. shared granularity method according to claim 1, is characterized in that, described business datum on current shared link is switched to described service protection passage transmits be specially:
According to the encapsulation format of described service protection passage, service message is encapsulated, by described service protection passage to the service message after the peer node transmission encapsulation of described shared link; Or,
By the service message that shared link peer node described in described service protection channel reception sends, according to the encapsulation format of this service protection passage, decapsulation is carried out to described service message.
6. a node, is characterized in that, is applied to MPLS looped network and carries out bypass protection, comprising:
Protection channel selects module, for when detecting that shared link breaks down, obtains the priority of current at least one available protection channel, and from described at least one protection channel, one that selects priority the highest as service protection passage; Described shared link refers to and connects two or more rings and by one section of link of this multiple ring unity of possession;
Switching module, transmitting for the business datum on current shared link being switched on described service protection passage.
7. node according to claim 6, is characterized in that, also comprises:
Protection channel configuration module, arranges priority respectively at least one protection channel for described shared link;
Whether fault detection module, break down for detecting described shared link.
8. a shared granularity system, it is characterized in that, be applied to MPLS looped network and carry out bypass protection, comprise first node and Section Point, described first node and Section Point are respectively the end node of shared link, between described first node and Section Point, be also equipped with at least one protection channel; Described shared link refers to and connects two or more rings and by one section of link of this multiple ring unity of possession;
Described first node, for when detecting that shared link breaks down, obtains the priority of current at least one available protection channel;
From described at least one protection channel, one that selects priority the highest as service protection passage;
Business datum on current shared link is switched on described service protection passage and transmits.
9. shared granularity system according to claim 8, is characterized in that,
Described first node, also arranges priority respectively at least one protection channel for described shared link.
10. shared granularity system according to claim 8, is characterized in that,
Whether described first node, also break down for detecting described shared link.
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| CN105281927A (en) * | 2014-05-28 | 2016-01-27 | 中兴通讯股份有限公司 | Method and device for multilink protection switching |
| CN107959623B (en) * | 2016-10-18 | 2020-10-16 | 腾讯科技（深圳）有限公司 | Multichannel disaster recovery method and device |
| CN107886325B (en) * | 2017-10-12 | 2021-12-03 | 北京展鸿软通科技股份有限公司 | Payment link sharing method |
| CN108234294A (en) * | 2017-12-29 | 2018-06-29 | 中兴通讯股份有限公司 | Method for message transmission, device, storage medium and electronic device |
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