CN1612531A - Method for realizing shared guard ring misconnecting susppression for multiplexing section and system thereof - Google Patents
Method for realizing shared guard ring misconnecting susppression for multiplexing section and system thereof Download PDFInfo
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Abstract
In multiplexing segment shared guard ring, after one or multiple nodes complete operation configuration, multiplexing segment inhibition tables of whole ring is recalculated in concentration once through SDH network management system, and multiplexing segment inhibition table for each node through network management system and interface between communication devices is sent to relevant node. Thus, according to new multiplexing segment inhibition table, each node realizes mistake connection inhibition of multiplexing segment shared guard ring. Advantages are: simple, high efficiency, rapid calculation, and supporting devices made from different manufacturers. The invention guarantees safe and reliable calculating and refurbishing procedure.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of wrong method and system thereof that connects compacting of Multiplex Section Shared Protection Ring that realize.
Background technology
In communication network, SDH (synchronous digital hierarchy) optical transport network especially, the network survivability ability is to weigh the important indicator of network quality.Usually, for survival ability communication network preferably, under the situation of equipment or link occurs fault, network can be sought alternative route in a short period of time, from failure of removal, recover institute's loaded service automatically, the fault that the imperceptible network of user has been taken place does not promptly influence carrying out of user's regular traffic.
At present, in the SDH optical transport network, the mode of the most frequently used raising network survivability ability comprises that path protection and multiplex section share two kinds of ring protections (MSP SPRing).Path protection serves as the protection unit with VC (virtual container) passage of SDH; business is transmitted in service aisle under the normal condition; in case service aisle transmission is interrupted or performance degradation to a certain degree the time, system's auto switching utilizes the protection passage to carry out the signal transmission to special-purpose protection passage.And Multiplex Section Shared Protection Ring (MSP SPRing) serves as the protection unit with the multiplex section in the ring network; Multiplex Section Shared Protection Ring comprises a plurality of nodes; under the normal condition; business is transmitted in the working time slot of Multiplex Section Shared Protection Ring; and the protection time slot that all nodes sharing are identical in the whole Multiplex Section Shared Protection Ring; under the situation that working time slot breaks down, two ends, fault point service signal all is switched to the protection time slot.
Path protection has fault detect and business recovery time speed is fast, the advantage of flexible configuration, and ordinary business practice is lower than 30 milliseconds recovery time, and can protect for various capacity passages such as VC12, VC3, VC4.Path protection need not to rely on the APS agreement, but owing to used the privacy protection passage of 1+1, bandwidth availability ratio is lower, only has 50%, and does not support extra traffic, is suitable for the service protection of the less access of capacity, convergence-level transmission network.
And in the Multiplex Section Shared Protection Ring; because each nodes sharing protection time slot in the ring network; its bandwidth utilization is higher than path protection; Multiplex Section Shared Protection Ring needs the support of APS agreement; the speed of switching is generally less than 50 milliseconds; can support extra traffic, be applicable to the service protection of big capacity Backbone Transport Network network.
In Multiplex Section Shared Protection Ring, because the time slot of each protection passage may be shared by a plurality of business, under certain conditions, lost efficacy as single-point or multiple spot, the regular traffic on the service aisle may be competed the same time slot of protecting passage, produces professional wrong the company.In order to prevent professional to be connected by wrong, the mode of inserting Administration unit alarm indication signal (AU-AIS) by the time slot that may occur to wrong connection business is suppressed usually, and the mistake that is called Multiplex Section Shared Protection Ring connects compact technique.
For the mistake that realizes Multiplex Section Shared Protection Ring connects compacting; in Multiplex Section Shared Protection Ring; all essential pressing table (squelch table), cross connection pattern and the low-order service sign of obtaining of each node; wherein said pressing table has write down the address that the corresponding business of AU-4 (AU, administrative unit) time slot is gone into circling point and gone out circling point.The pressing table of all nodes in the Multiplex Section Shared Protection Ring has constituted the multiplex section pressing table of this Multiplex Section Shared Protection Ring jointly.
Under the situation that Multiplex Section Shared Protection Ring breaks down, each node is protected the business of switching influence according to the pressing table detection of this node, and detailed process is: at first, determine the switching node of response bridge joint request in the whole ring; By cross connection pattern, pressing table, low-order service sign, check the business that influences of being switched.For those wrong business that connects may take place, the general compacting logic that can G.841 advise according to ITU-T is inserted Administration unit alarm indication signal (AU4-AIS) downstream, suppresses the wrong generation that connects.
Therefore; realize the wrong compact technique that connects of multiplex section; at first need to utilize special-purpose agreement or centralized algorithm; guarantee that each node all obtains correct node multiplex section pressing table in the ring; therefore, to connect the key problem of compact technique be the multiplex section pressing table that how to obtain Multiplex Section Shared Protection Ring to the mistake of Multiplex Section Shared Protection Ring.
The account form of the multiplex section pressing table of present each producer, the use agreement mode realizes usually.As shown in Figure 1, each node in the Multiplex Section Shared Protection Ring utilizes communication channel between network element; passage as some overhead byte formation in the SDH interface; or extra data communication network, all other nodes in Multiplex Section Shared Protection Ring are broadcasted the service configuration information of this node.Simultaneously, this node also can be received the service configuration information of all other nodes.Like this, each node in the Multiplex Section Shared Protection Ring, the information that can receive according to self is calculated the node multiplex section pressing table of this node.
Because in the Multiplex Section Shared Protection Ring; each node only need calculate the multiplex section pressing table of the node of self; therefore; in the calculating of above-mentioned multiplex section pressing table; relevant computational methods; only need to calculate, or the business that terminates in this node gets final product, do not need to handle the business of all nodes in the loopful from this section point.
Utilize said method, can realize that other professional multiplex section pressing table of VC4 and higher level calculates, can support a source Duo Su, multi-source one night, many places of multi-source circuit.And this method belongs to distributed method, needs the special communication channel of structure between network element, and sets up multiplex section compacting agreement on the basis of this communication channel.Simultaneously, in the said method, the calculating of described pressing table need not network management system and attendant's intervention, and refreshing of pressing table also need not manual intervention, the automaticity height.
Yet; said method also exists the shortcoming that is difficult to overcome; comprise: because multiplex section compacting agreement is nonstandard; each device fabrication manufacturer implementation difference; when the distinct device vendor equipment is formed Multiplex Section Shared Protection Ring jointly; multiplex section compacting agreement can't be used, and forms Multiplex Section Shared Protection Ring so can't support devices from different manufacturers to mix.And, because said method is a distributed algorithm, can't once obtain the pressing table of all nodes of multiplex section, cause the mistake of Multiplex Section Shared Protection Ring even to suppress and can not realize reliably.Simultaneously; multiplex section compacting agreement itself is dangerous; there is leak; therefore, if in Multiplex Section Shared Protection Ring, configuration service in enormous quantities in the short time; or the Multiplex Section Shared Protection Ring error code is many; or the situation of one or more isolated nodes appearred in Multiplex Section Shared Protection Ring, and multiplex section compacting agreement itself is also dangerous, even can't in time calculate and refresh the multiplex section pressing table of whole ring.
Summary of the invention
In view of above-mentioned existing in prior technology problem; the purpose of this invention is to provide a kind of wrong method that connects compacting of Multiplex Section Shared Protection Ring that realizes; with the Multiplex Section Shared Protection Ring of supporting to form, and can realize the wrong reliably compression process that connects to Multiplex Section Shared Protection Ring by the distinct device mixing.
The objective of the invention is to adopt following scheme to realize:
The invention provides a kind of wrong method that connects compacting of Multiplex Section Shared Protection Ring that realizes, comprising:
A, obtain the configuration information of each node of Multiplex Section Shared Protection Ring;
The configuration information of each node of Multiplex Section Shared Protection Ring that B, basis are obtained, centralized calculation generates the multiplex section pressing table of each node;
The multiplex section pressing table of C, each node that will generate sends to each node;
D, each node realize that according to the multiplex section pressing table of receiving separately the mistake of Multiplex Section Shared Protection Ring connects compression process.
Described steps A comprises:
One or more nodes in Multiplex Section Shared Protection Ring are finished business configuration, and network management device calls the configuration information and the corresponding algorithm of each node.
The configuration information of described each node comprises:
This node in Multiplex Section Shared Protection Ring topology location information and the service configuration information of node.
Described steps A also comprises:
The mistake of rejecting Multiplex Section Shared Protection Ring from the configuration information of each node connects the configuration information of the unsupported business of compression process.
The configuration information of described rejecting comprises:
The configuration information of VC12, VC3 level traffic;
The configuration information of extra traffic;
The configuration information of broadcasting service;
The configuration information of the business of SNCP and multiplex section protection stack.
In the method for the present invention, carry out described step B and also comprise before:
Initialization is used to preserve the variable of multiplex section pressing table, and the data that are about to preserve in the multiplex section pressing table variable empty.
Described step B comprises:
B1, according to the configuration information of each node of calling, determine the circling point of going into of a Multiplex Section Shared Protection Ring;
B2, according to the circling point of determining of going into, search downstream generates a circuit, and according to the business information of circuit, generates the multiplex section compacting list item of each node of this circuit correspondence, and it is joined in the multiplex section pressing table;
B3, judge that whether can also find out one from the configuration information of remaining each node goes into circling point, if can, execution in step B1 then, otherwise, execution in step C.
Described step B1 comprises:
From Multiplex Section Shared Protection Ring in each node; the service source of business of determining configuration information record is not in Multiplex Section Shared Protection Ring; but the node of professional place in Multiplex Section Shared Protection Ring; and in should all nodes of business; do not exist with the node of determining to have the business of identical services place, this node is defined as the circling point of going into of Multiplex Section Shared Protection Ring.
Described step B2 comprises:
B21, the node NO that goes into the circling point correspondence and the professional xcO that determine with step B1 are starting point, are labeled as node N and professional xc;
B22, in the business information of node N, find out the interconnection with professional xc homology or chummage in multiplex section, the business found out with professional xc, is preserved as the part of circuit, and is deleted from business information;
If in the Circuit Service of the above-mentioned preservation of B23, exist service source not the work in multiplex section or protection channel slot to go into ring professional, then node N is labeled as into circling point; If exist professional place not the work in multiplex section or protection channel slot to go out ring professional, then node N is labeled as out circling point;
In the business of the node N of B24, above-mentioned preservation, if exist professional place to be arranged in the business of multiplex section, then determine next node N ' in the multiplex section ring according to this business place, and in node N ', seek professional xc ' with this business place adjacency, flag node N ' and professional xc ' are node N and professional xc, and in this node N ' repeated execution of steps B22 and step B23, in node N, no longer include the business that professional place is arranged in multiplex section, execution in step B25; If in node N ', can't find corresponding xc ', then carry out the search of next bar circuit, i.e. execution in step B1;
The business information of the circuit that B25, basis search, the multiplex section that generates each node of this circuit correspondence is suppressed list item, and it is joined in the multiplex section pressing table.
Described business information comprises: the port and the time slot information of professional business-level, service source and professional place.
Among the described step B25:
The direction of described compacting list item is the direction of professional place time slot in Multiplex Section Shared Protection Ring;
The source node of described compacting list item is gone into circling point for first of this circuit;
The destination node of described compacting list item is last node of this circuit.
Described step C comprises:
The multiplex section pressing table Network Management Equipment of each node that Network Management Equipment will generate and the interface between communication equipment send to each node of the Multiplex Section Shared Protection Ring in the communication equipment.
Among the present invention, the processing procedure of described steps A, B and C is to realize in SDH (synchronous digital hierarchy) network management system, and described network management system can be network level management system, Subnetwork Management System or NE-level management system or the like.
By technical scheme that the invention described above provided as can be seen; the present invention has adopted unified Calculation Method of carrying out the multiplex section pressing table in network management system; calculate the pressing table of each node in the loopful; be handed down to interdependent node; and then the situation of Multiplex Section Shared Protection Ring is formed in realization jointly to devices from different manufacturers; the support of multiplex section compacting is provided, connects compression process thereby can support devices from different manufacturers to mix the mistake of forming Multiplex Section Shared Protection Ring comparatively easily.At the Sub-Network Management Layer or the NML of SDH network management system, the Multiplex Section Shared Protection Ring that the communication equipment that each producer provides is formed can be realized unified management.The present invention can once calculate the pressing table of all nodes of multiplex section, and can in network management system, be adjusted by the user according to user's needs.
Therefore, computational speed of the present invention is fast, has overcome the dangerous leak of original multiplying segment suppressing method.And; owing to be in network management system, to unifiedly calculate; therefore; if in Multiplex Section Shared Protection Ring; configuration service in enormous quantities in short time, or the Multiplex Section Shared Protection Ring error code is many, or the situation of one or more isolated nodes has appearred in Multiplex Section Shared Protection Ring; the calculating of the multiplex section pressing table of whole ring and refresh still and can carry out, and safety, reliable.
Description of drawings
Fig. 1 realizes the wrong system schematic that connects compacting of protection rings in the prior art;
Fig. 2 is the concrete implementing procedure figure of method of the present invention;
Fig. 3 is structural representation Fig. 2 of the network of method application of the present invention.
Embodiment
Core of the present invention is in SDH (Synchronous Digital Hierarchy) network management system; the multiplex section pressing table of each node in the centralized calculation Multiplex Section Shared Protection Ring; then; by network management system result of calculation is sent to each node of Multiplex Section Shared Protection Ring again, the mistake that each node is carried out Multiplex Section Shared Protection Ring according to the new multiplex section pressing table of receiving connects pressing operation.
At first the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring of the present invention is elaborated,, specifically may further comprise the steps with reference to Fig. 2:
Step 21: will preserve the data of preserving in the variable " squelch_table " of multiplex section pressing table and empty, so that preserve newly-generated multiplex section pressing table.
Step 22: obtain the configuration information of all nodes of Multiplex Section Shared Protection Ring, the content of described configuration information comprises node ID (sign), total number of nodes and node sequencing etc., and described configuration information comprises the service configuration information of node.
Step 23: the unsupported configuration information of pressing table algorithm in the configuration information that obtains is removed, and the result is kept in the configuration information temporary variable " fabric ";
The configuration information of described pressing table algorithm support comprises:
Support the multiplex section compacting of the interconnected type service of binode (Drop and continue);
Support the multiplex section compacting of a source Duo Su, multi-source one night, many places of multi-source one-way circuit;
Support the multiplex section compacting of VC4 level traffic;
Support the multiplex section compacting of VC4 cascade business, VC4 cascade business takies the bandwidth of a plurality of VC4 passages, but business itself is an indivisible integral body, the compacting of multiplex section also can only be carried out whole VC4 cascade business, therefore, when carrying out the calculating of multiplex section pressing table, VC4 cascade business must be done as a whole calculating, among the present invention, first VC4 time-gap number of use VC4 cascade business is represented the time-gap number of whole VC4 cascade business, and other processing procedures are with identical to the processing procedure of VC4 business;
The unsupported configuration information of described pressing table algorithm comprises:
Do not support the multiplex section compacting of VC12, VC3 level traffic;
Do not support the multiplex section compacting of extra traffic;
Do not support the multiplex section compacting of broadcasting service;
Do not support the service integration section compacting (from Zhi Luxiang multiplex section east/west to two, or from multiplex section east/west to selecting receipts) of SNCP and multiplex section protection stack.
Step 24: " trail " empties with the pressing table temporary variable, and this variable is used to preserve the pressing table result of calculation of a circuit.
Step 25: find out a professional xcO who satisfies corresponding conditions from configuration information temporary variable " fabric ", with the node NO at the professional xcO place circling point of going into as a circuit, the condition that the configuration information of this node need satisfy is:
The service source of described node is not in Multiplex Section Shared Protection Ring, but professional place is into circling point to guarantee this node in Multiplex Section Shared Protection Ring; Simultaneously, in the node at described professional place, not having the business that has the identical services place with node NO, is the node of upstream to guarantee this node;
Certainly, if node NO does not exist, then the computational process of the pressing table of whole Multiplex Section Shared Protection Ring finishes, and changes step 28.
Step 26: according to the search of determining that circling point carries out circuit of going into, promptly from node NO, in Multiplex Section Shared Protection Ring, to professional downstream search, till finding out a circuit, described circuit may be source one night, one source Duo Su, multi-source one night, a kind of in the circuit of many places of multi-source, according to the search by the order behind the forward direction, with the node and the business information of process (comprise business-level on the way, the port of service source and professional place and gap information) be kept in the pressing table temporary variable " trail ", and the business information of preserving among the trail is deleted from fabric;
With node NO and professional xcO is starting point, and is labeled as node N and professional xc respectively, and the process of then concrete circuit search is:
(1) in fabric, finds out among the node N interconnection (not comprising that wherein corresponding business source or professional place be not in the work of multiplex section or the interconnection of protection channel slot) with professional xc homology or chummage in multiplex section, the business of finding out is kept in the circuit with professional xc, and from fabric, delete, be these business of finding out with xc, will be as the part of circuit;
(2) according in the Circuit Service of above-mentioned preservation, the business whether existence goes into to encircle, be not work in multiplex section or protection channel slot of service source, or the business that goes out to encircle, be not work in multiplex section or protection channel slot of professional place, corresponding node N be labeled as into circling point or go out circling point,, then do not need to carry out mark if do not go out ring or go into the business of ring;
(3) if in the business of the node N of above-mentioned preservation, exist professional place to be arranged in the business of multiplex section, the downstream that then means the multiplex section ring also has going out circling point or going into circling point of circuit, determine next node N ' in the multiplex section ring according to this business place, and in node N ', seek professional xc ' with this business place adjacency, flag node N ' and professional xc ' are node N and professional xc, and in this node N ', repeat the processing procedure of (1) and (2), execution in step 27 when in node N, no longer including professional place and being arranged in multiplex section professional; If professional xc ' can't find, then circuit search failure, promptly there is defective in circuit arrangement, does not have the last circling point that goes out, and the circuit search process stops, and does not need to carry out mistake and connects compacting, changes step 24, carries out the processing of next bar circuit.
Step 27: generate pressing table according to Search Results, promptly according to the precedence that joins in " trail ", business in " trail " is carried out following traversal processing: from " trail ", take out a business, in " squelch_table ", increase a compacting item in the pressing table of corresponding node, the low-order service of compacting item is designated "No", expression does not support the multiplex section compacting of low-order service (promptly not support VC12, the multiplex section compacting of VC3 level traffic), the direction of compacting item, be exactly should business place time slot in the direction of Multiplex Section Shared Protection Ring, be east orientation or the west to, the source node of compacting item is exactly the circling point of going into of first adding " trail ", and the destination node of compacting item is exactly the circling point that of last adding " trail ";
Describedly go into circling point (entry node) and enter the node of Multiplex Section Shared Protection Ring, and the corresponding service source is at the work or the protection channel slot of multiplex section, but professional place is at the working time slot or the protection time slot of multiplex section for circuit;
Describedly go out circling point (exit node) and leave the node of Multiplex Section Shared Protection Ring, and the corresponding service place is at the work or the protection channel slot of multiplex section, but service source is at the working time slot or the protection time slot of multiplex section for circuit;
Go to step 24 after the complete step 27, the pressing table that continues next bar circuit calculates, and all finishes the generation of pressing table, execution in step 28 until each node of Multiplex Section Shared Protection Ring.
Step 28: the multiplex section pressing table of each node that will generate sends to each node, and connects compression process by each node according to the mistake that corresponding pressing table carries out Multiplex Section Shared Protection Ring.
In sum; the present invention utilizes the service configuration information of each node in the Multiplex Section Shared Protection Ring; centralized calculation also generates the multiplex section pressing table of each node; promptly at first obtain the service configuration information of every node in the multiplex section protective ring; generate the pressing table squelch_table of whole multiplex section protective ring then, and result of calculation meets ITU-T and G.841 advises relevant regulations about multiplex section compacting.Be that the present invention is in Multiplex Section Shared Protection Ring; after one or more nodes are finished business configuration; can pass through the SDH network management system; the multiplex section pressing table of whole ring is recomputated once; and incite somebody to action the wherein node multiplex section pressing table of each, by the interface between network management system and communication equipment, send in the interdependent node; each node just can carry out wrong detection and the compacting that connects of multiplex section according to new node multiplex section pressing table.Usually, the network management system described in the present invention can be network level management system, Subnetwork Management System or NE-level management system or the like.
Therefore; the method of the multiplex section pressing table of each node has the advantages of simplicity and high efficiency advantage in the calculating Multiplex Section Shared Protection Ring provided by the present invention; and can be applicable to SDH Element management system or network management system, realize the wrong quick calculating that connects pressing table of multiplex section protective ring.
The invention will be further described with a concrete application example below, and as shown in Figure 3, A, B, four nodes of C, D constitute the STM-16 Multiplex Section Shared Protection Ring according to counterclockwise, the clockwise direction of each node be the west to, counter clockwise direction is an east orientation,
Obtain following input parameter in the SDH network management system:
As shown in table 1, there are three two-way VC4 rank circuit in the ring:
Circuit 1 A＜=〉B use AU4 time slot 1;
Circuit 2 B＜=〉C＜=D use AU4 time slot 1;
Circuit 3 A＜=〉B＜=C＜=D use AU4 time slot 2;
Described table 1 is:
| The AU4 numbering | ＜--west is to node east orientation--〉A B C D A |
| ????1 | ??<--------><-----------------> |
| ????2 | ??<---------------------------> |
| ????3 | |
| ????4 | |
| ????…… | |
| ????16 |
After the SDH network management system is carried out computing according to above-mentioned input parameter, obtain following output parameter, as shown in table 2, provided the result of calculation of pressing table squelch_table in the table, in the node pressing table, node A only has the compacting list item at 1,2 time slots of east orientation, and 1,2 time slots to, east orientation all have the compacting list item in the west for Node B and C, and node D only has the compacting list item in the west to 1,2 time slots, and result of calculation conforms to the definition of pressing table during G.841 ITU-T advises.
Table 2:
| Node | The AU4 time slot | The west is to source node | The west is to destination node | The east orientation source node | The east orientation destination node |
| ??A | ????1 | ????A | ????B | ||
| ????2 | ????A | ????D | |||
| ????3 | |||||
| ????4 | |||||
| ????…… | |||||
| ????16 | |||||
| ??B | ????1 | ????B | ????A | ????B | ????D |
| ????2 | ????D | ????A | ????A | ????D | |
| ????3 | |||||
| ????4 | |||||
| ????…… | |||||
| ????16 | |||||
| ??C | ????1 | ????D | ????B | ????B | ????D |
| ????2 | ????D | ????A | ????A | ????D | |
| ????3 | |||||
| ????4 | |||||
| ????…… | |||||
| ????16 | |||||
| ??D | ????1 | ????D | ????B | ||
| ????2 | ????D | ????A | |||
| ????3 | |||||
| ????4 | |||||
| ????…… | |||||
| ????16 |
The SDH network management system will go up pressing table and send to node corresponding, i.e. node A, B, C and D, and node corresponding just can connect compression process according to the mistake that the content of pressing table is carried out Multiplex Section Shared Protection Ring.
Claims (12)
1, a kind of wrong method that connects compacting of Multiplex Section Shared Protection Ring that realizes is characterized in that comprising:
A, obtain the configuration information of each node of Multiplex Section Shared Protection Ring;
The configuration information of each node of Multiplex Section Shared Protection Ring that B, basis are obtained, centralized calculation generates the multiplex section pressing table of each node;
The multiplex section pressing table of C, each node that will generate sends to each node;
D, each node realize that according to the multiplex section pressing table of receiving separately the mistake of Multiplex Section Shared Protection Ring connects compression process.
2, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 1 is characterized in that described steps A comprises:
One or more nodes in Multiplex Section Shared Protection Ring are finished business configuration, and network management device calls the configuration information and the corresponding algorithm of each node;
The configuration information of described each node comprises:
This node in Multiplex Section Shared Protection Ring topology location information and the service configuration information of node.
3, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 2 is characterized in that described steps A also comprises:
The mistake of rejecting Multiplex Section Shared Protection Ring from the configuration information of each node connects the configuration information of the unsupported business of compression process.
4, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 3 is characterized in that the configuration information of described rejecting comprises:
The configuration information of VC12, VC3 level traffic;
The configuration information of extra traffic;
The configuration information of broadcasting service;
The configuration information of the business of SNCP and multiplex section protection stack.
5, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 1 is characterized in that, carries out described step B and also comprises before:
Initialization is used to preserve the variable of multiplex section pressing table, and the data that are about to preserve in the multiplex section pressing table variable empty.
6, according to claim 1,3, the wrong method that connects compacting of 4 or 5 described realization Multiplex Section Shared Protection Rings, it is characterized in that described step B comprises:
B1, according to the configuration information of each node of calling, determine the circling point of going into of a Multiplex Section Shared Protection Ring;
B2, according to the circling point of determining of going into, search downstream generates a circuit, and according to the business information of circuit, generates the multiplex section compacting list item of each node of this circuit correspondence, and it is joined in the multiplex section pressing table;
B3, judge that whether can also find out one from the configuration information of remaining each node goes into circling point, if can, execution in step B1 then, otherwise, execution in step C.
7, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 6 is characterized in that described step B1 comprises:
From Multiplex Section Shared Protection Ring in each node; the service source of business of determining configuration information record is not in Multiplex Section Shared Protection Ring; but the node of professional place in Multiplex Section Shared Protection Ring; and in should all nodes of business; do not exist with the node of determining to have the business of identical services place, this node is defined as the circling point of going into of Multiplex Section Shared Protection Ring.
8, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 6 is characterized in that described step B2 comprises:
B21, the node NO that goes into the circling point correspondence and the professional xcO that determine with step B1 are starting point, are labeled as node N and professional xc;
B22, in the business information of node N, find out the interconnection with professional xc homology or chummage in multiplex section, the business found out with professional xc, is preserved as the part of circuit, and is deleted from business information;
If in the Circuit Service of the above-mentioned preservation of B23, exist service source not the work in multiplex section or protection channel slot to go into ring professional, then node N is labeled as into circling point; If exist professional place not the work in multiplex section or protection channel slot to go out ring professional, then node N is labeled as out circling point;
In the business of the node N of B24, above-mentioned preservation, if exist professional place to be arranged in the business of multiplex section, then determine next node N ' in the multiplex section ring according to this business place, and in node N ', seek professional xc ' with this business place adjacency, flag node N ' and professional xc ' are node N and professional xc, and in this node N ' repeated execution of steps B22 and step B23, in node N, no longer include the business that professional place is arranged in multiplex section, execution in step B25; If in node N ', can't find corresponding xc ', then carry out the search of next bar circuit, i.e. execution in step B1;
The business information of the circuit that B25, basis search, the multiplex section that generates each node of this circuit correspondence is suppressed list item, and it is joined in the multiplex section pressing table.
9, the mistake of Multiplex Section Shared Protection Ring connects the implementation method of suppressing in the network service according to claim 8, it is characterized in that described business information comprises: the port and the time slot information of professional business-level, service source and professional place.
10, the mistake of multiple section protection rings connects the implementation method of suppressing in the network service according to claim 8, it is characterized in that among the described step B25:
The direction of described compacting list item is the direction of professional place time slot in Multiplex Section Shared Protection Ring;
The source node of described compacting list item is gone into circling point for first of this circuit;
The destination node of described compacting list item goes out circling point for last of this circuit.
11, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 1 is characterized in that described step C comprises:
The multiplex section pressing table Network Management Equipment of each node that Network Management Equipment will generate and the interface between communication equipment send to each node of the Multiplex Section Shared Protection Ring in the communication equipment.
12, the wrong method that connects compacting of realization Multiplex Section Shared Protection Ring according to claim 1; it is characterized in that; the processing procedure of described steps A, B and C is to realize in SDH (synchronous digital hierarchy) network management system, and described network management system comprises network level management system, Subnetwork Management System and NE-level management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101039087A CN1332532C (en) | 2003-10-31 | 2003-10-31 | Method for realizing shared guard ring misconnecting susppression for multiplexing section and system thereof |
Applications Claiming Priority (1)
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| CN101552690B (en) * | 2008-03-31 | 2011-04-06 | 华为技术有限公司 | Configuration method, system and node equipment of node maintenance function |
| CN101102163B (en) * | 2006-07-04 | 2012-03-07 | 华为技术有限公司 | Method for preventing the protection network of the loop multiplexing section from incorrect optical fiber connection and loop multiplexing section network |
| CN102739430A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for realizing Ethernet protection switching |
| CN103703703A (en) * | 2011-07-27 | 2014-04-02 | 瑞典爱立信有限公司 | Energy efficient dynamic bandwidth allocation for optical networks |
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| CN1108046C (en) * | 1999-10-27 | 2003-05-07 | 深圳市中兴通讯股份有限公司 | Method for inhibiting continuous errors in ring-shaped optical SDH network |
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| CN101102163B (en) * | 2006-07-04 | 2012-03-07 | 华为技术有限公司 | Method for preventing the protection network of the loop multiplexing section from incorrect optical fiber connection and loop multiplexing section network |
| CN101552690B (en) * | 2008-03-31 | 2011-04-06 | 华为技术有限公司 | Configuration method, system and node equipment of node maintenance function |
| CN102739430A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for realizing Ethernet protection switching |
| WO2012139452A1 (en) * | 2011-04-15 | 2012-10-18 | 中兴通讯股份有限公司 | Ethernet protection switching implementation method and system |
| CN102739430B (en) * | 2011-04-15 | 2017-04-12 | 中兴通讯股份有限公司 | Method and system for realizing Ethernet protection switching |
| CN103703703A (en) * | 2011-07-27 | 2014-04-02 | 瑞典爱立信有限公司 | Energy efficient dynamic bandwidth allocation for optical networks |
| CN103703703B (en) * | 2011-07-27 | 2017-03-22 | 瑞典爱立信有限公司 | Energy efficient dynamic bandwidth allocation for optical networks |
| WO2018192223A1 (en) * | 2017-04-20 | 2018-10-25 | Sino-Telecom Technology Co., Inc | Method and device for automatically discovering cross-node service topology on transoceanic multiplex section shared protection ring |
| AU2017410499B2 (en) * | 2017-04-20 | 2020-05-28 | Sino-Telecom Technology Co., Inc | Method and device for automatically discovering cross-node service topology on transoceanic multiplex section shared protection ring |
| RU2730390C1 (en) * | 2017-04-20 | 2020-08-21 | Сино-Телеком Технолоджи Ко., ИНК | Method and apparatus for automatic determination of inter-node communication topology in shared backup ring of transoceanic multiplex section |
| US10972309B2 (en) | 2017-04-20 | 2021-04-06 | Sino-Telecom Technology Co., Inc. | Method and device for automatically discovering cross-node service topology on transoceanic multiple section shared protection ring |
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| CN1332532C (en) | 2007-08-15 |
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